1
dc1996afb
DEMO MANUAL DC1996A
DESCRIPTION
LTC2323/LTC2321
Dual 16-Bit/14-Bit/12-Bit,
5Msps/2Msps, Serial,
High Speed SAR ADCs
Demonstration circuit 1996A features the LT C
®
2323 family.
With up to 5Msps, these differential, dual channel, 16-bit,
serial, high speed successive approximation register
(SAR) ADCs are available in a 28-lead QFN package. The
LTC2323 family has an internal 20ppm/°C reference and
an SPI-compatible serial interface that supports CMOS
and LVDS logic. Note the demo board is configured for
CMOS operation by default; see the note under JP3 for
LVDS operation. The following text refers to the LTC2323,
but applies to all members of the family, the only differ-
ence being the sample rate and the number of bits. The
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and PScope
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
BOARD PHOTO
DC1996A demonstrates the DC and AC performance of
the LTC2323 in conjunction with the DC890 PScope™
data collection board. Alternatively, by connecting the
DC1996A into a customer application, the performance
of the LTC2323 can be evaluated directly in that circuit.
Design files for this circuit board are available at
http://www.linear.com/demo
Figure 1. DC1996A Connection Diagram
dc1996a F02
HP8642B
BPF
–9.5VDC GND 9.5VDC
DC POWER SUPPLY
HP8642B
BPF
TO PC USB PORT
DC890
2
dc1996afb
DEMO MANUAL DC1996A
QUICK START PROCEDURE
Demonstration circuit 1996A is easy to set up and evaluate
for performance. Refer to Figure 1 and follow the proce-
dure below.
n Connect the DC1996A to a DC890 USB high speed data
collection board using edge connector P1.
n Connect the DC890 to a host PC with a standard USB
A/B cable.
n Apply a low jitter signal source to J2 to test channel
2, or to J4 to test channel 1. Note that the DC1996A
is capable of accepting a differential input signal as
well as a single-ended signal. See the Hardware Setup
section for the jumper positions that correspond to
these configurations.
n As a clock source, apply a low jitter 10dBm sine wave or
square wave to connector J1. See Table 1 for maximum
clock frequencies. Note that J1 has a 50Ω termination
resistor to ground.
n Run the PScope software (Pscope.exe version K73,
or later) supplied with the DC890 or download it from
www.linear.com/software. Complete software doc-
umentation is available from the Help menu. Updates
can be downloaded from the Tools menu. Check for
updates periodically, as new features may be added.
The PScope software should recognize the DC1996A
and configure itself automatically.
n Click the Collect button (Figure 2) to begin acquiring
data. The Collect button then changes to Pause, which
can be used to stop data acquisition.
ASSEMBLY OPTIONS
Table 1. DC1996A Assembly Options
VERSION U1 PART NUMBER MAX CONVERSION RATE # OF BITS MAX CLOCK FREQUENCY
DC1996A-A LTC2323CUFD-16#PBF 5Msps 16 110MHz
DC1996A-B LTC2321CUFD-16#PBF 2Msps 16 64MHz
DC1996A-C LTC2323CUFD-14#PBF 5Msps 14 110MHz
DC1996A-D LTC2321CUFD-14#PBF 2Msps 14 62MHz
DC1996A-E LTC2323CUFD-12 #PBF 5Msps 12 95MHz
DC1996A-F LTC2321CUFD-12#PBF 2Msps 12 58MHz
Figure 2. DC1996A PScope Screenshot
3
dc1996afb
DEMO MANUAL DC1996A
SIGNAL CONNECTIONS
J1 CLK IN: This input has a 50Ω termination resistor,
and is intended to be driven by a low jitter 10dBm sine or
square wave. To achieve the full AC performance of this
part, the clock jitter should be kept under 2ps. This input
is capacitively coupled so that the input clock can be either
0V to 3.3V or ±1.65V. This eliminates the need for level
shifting. To run at the maximum conversion rate, apply
the frequency specified in the Table 1.
J2 Ch2+ Input: In the single-ended configuration, this is
the channel 2 signal input. For differential operation, this
serves as the positive channel 2 signal input.
J3 Ch2– Input: This input is used only for differential
operation. It serves as the negative channel 2 signal input.
J4 Ch1+ Input: In the single-ended configuration, this is
the channel 1 signal input. For differential operation, this
serves as the positive channel 1 signal input.
J5 Ch1– Input: This input is used only for differential
operation. It serves as the negative channel 1 signal input.
J6 FPGA Program: Factory use only.
J7 JTAG: Factory use only.
JP1 +IN2 Coupling: Use this jumper to select AC- or DC-
coupling of the signal applied to J2. The default setting
is DC. At very low input frequencies, using AC-coupling
may degrade the distortion performance.
JP2 Mode: Use this jumper to select the signal input mode
for the channel 2 input of the LTC2323. The default setting
is Diff. The Diff setting accepts a single-ended signal from
J2 and applies it as a differential signal to channel 2 of the
LTC2323. The Bip setting accepts a single-ended signal
from J2 and applies it as a single-ended bipolar signal to
channel 2 of the LTC2323. The Uni setting also accepts a
single-ended signal from J2, but applies it as a unipolar
signal to channel 2 of the LTC2323.
JP3 Data Out: Use this jumper to select the data output
format from the LTC2323. The default setting is CMOS.
The output data will not be valid if the jumper is moved
to the LVDS position unless the following changes have
been made:
Install 100Ω S0402 resistors at R26, 75, 76, 99
Reprogram the CPLD through J6 using the program-
ming file LTC2323.pof found at:
http://www.linear.com/demo/DC1996A
Move JP3 to the LVDS position.
JP4 –IN2 Coupling: Use this jumper to select AC- or DC-
coupling of the signal applied to J3. The default setting
is DC. At very low input frequencies, using AC-coupling
may degrade the distortion performance.
JP5 +IN1 Coupling: Use this jumper to select AC- or DC-
coupling of the signal applied to J4. The default setting
is DC. At very low input frequencies, using AC-coupling
may degrade the distortion performance.
JP6 CM1: Use this jumper to set the DC bias point for the
signal applied to J4 when JP5 (+IN1 coupling) is in the
AC position. The default setting is ADC. The EXT setting
allows the use of an externally applied common mode
voltage applied at E1 (EXT_CM1).
JP7 CM2: Use this jumper to set the DC bias point for the
signal applied to J2 when JP1 (+IN2 coupling) is in the
AC position. The default setting is ADC. The EXT setting
allows the use of an externally applied common mode
voltage applied at E2 (EXT_CM2).
JP8 Mode: Use this jumper to select the signal input mode
for the channel 1 input of the LTC2323. The default setting
is Diff. The Diff setting accepts a single-ended signal from
J4 and applies it as a differential signal to channel 1 of the
LTC2323. The Bip setting accepts a single-ended signal
from J4 and applies it as a single-ended bipolar signal to
channel 1 of the LTC2323. The Uni setting also accepts a
single-ended signal from J4, but applies it as a unipolar
signal to channel 1 of the LTC2323.
HARDWARE SETUP
4
dc1996afb
DEMO MANUAL DC1996A
JP9 –IN1 Coupling: Use this jumper to select AC- or DC-
coupling of the signal applied to J5. The default setting
is DC. At very low input frequencies, using AC-coupling
may degrade the distortion performance.
JP10 VCCIO: Use this jumper to select the VCCIO sup-
ply voltage. The default setting is 2.5V. The 1.8V setting
selects a 1.8V supply voltage.
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 20 C1, C2, C4, C5, C9, C11, C13, C18, C19,
C22, C23, C29, C37, C51, C52, C58, C59,
C82, C129, C130
CAP., X7R, 0.1µF, 16V, 10%, 0603 NIC, NMC0603X7R104K16TRPF
2 24 C3, C6, C16, C17, C20, C21, C24-C26,
C28, C30, C34, C47-C50, C53, C54, C57,
C61, C70, C76, C79, C81
CAP., X5R, 10µF, 6.3V, 20%, 0603 NIC, NMC0603X5R106M6.3TRPF4KF
3 0 C7, C8, C10, C14, C27, C35, C36, C40,
C41, C60
CAP., 0603 OPT
4 2 C12, C41 CAP., NPO, 200pF, 16V, 5%, 0603 MURAA, GRM1885C1H201JA01D
5 12 C15, C32, C38, C39, C43, C45, C65, C67,
C68, C71, C74, C77
CAP., X7R, 1µF, 25V, 10%, 0603 TDK, C1608X7R1E105K
6 6 C31, C33, C55, C56, C106, C119 CAP., X5R, 4.7µF, 6.3V, 10%, 0603 AVX, 06036D475KAT2A
7 2 C42, C44 CAP., X5R, 2.2µF, 10V, 10%, 0603 MURATA, GRM188R61A225KE34D
8 1 C62 CAP., X7R, 47µF, 10V, 10%, 1210 MURATA, GRM32ER71A476KE15L
9 5 C63, C69, C72, C75, C78 CAP., X7R, 0.01µF, 6.3V, 10%, 0603 MURATA, GRM188R70J103KA01D
10 3 C64, C66, C73 CAP., X7R, 10µF, 10V, 10%, 0805 MURATA, GRM21BR71A106KE51L
11 1 C80 CAP., X5R, 3.3µF, 6.3V, 10%, 0603 AVX, 06036D335KAT2A
12 28 C83-C104, C108, C122-C126 CAP., X7R, 0.1µF, 16V, 10%, 0402 NIC, NMC0402X7R104K16TRPF
13 1 C105 CAP., X5R, 47µF, 6.3V, 20%, 0805 TAIYO YUDEN, JMK212BJ476MG-T
14 3 C107, C120, C121 CAP., X7R, 0.01µF, 16V, 10%, 0402 NIC, NMC0402X7R103K16TRPF
15 1 C109 CAP., X7R, 1nF, 16V, 10%, 0402 AVX, 0402YC102KAT2A
16 3 C110, C111, C112 CAP., X7R, 22nF, 16V, 10%, 0402 AVX, 0402YC223KAT2A
17 2 C113, C128 CAP., X7R, 4.7nF, 16V, 10%, 0402 AVX, 0402YC472KAT2A
18 4 C114, C115, C116, C117 CAP., NP0, 10pF, 16V, 10%, 0402 AVX, 0402YA100KAT2A
19 1 C118 CAP., TANT, 470µF 10V, 20%, 7343 AVX, TPSE477M010R0050
20 1 C127 CAP., X7R, 2.2nF, 16V, 10%, 0402 AVX, 0402YC222KAT2A
21 4 D1, D2, D3, D4 DIODE, SCHOTTKY, 30V, 200mW SOD-323 DIODE INC., BAT54WS-7-F
22 9 E1-E3, E5, E8-E12 TEST POINT, TURRET, 0.064" MILL-MAX, 2308-2-00-80-00-00-07-0
23 3 E4, E6, E7 TEST POINT, TURRET, 0.094" MILL-MAX, 2501-2-00-80-00-00-07-0
HARDWARE SETUP
JP11 VDD: Use this jumper to select the VDD supply volt-
age. The default setting is 5V. The 3.3V setting selects a
3.3V supply voltage.
JP12 EEPROM: Factory use only.
JP13 OSC: Use this jumper to enable the onboard encode
clock source. The default setting is OFF. The ON setting
energizes this source. Refer to the DC1996A schematic for
additional passive elements required to use the onboard
source.
5
dc1996afb
DEMO MANUAL DC1996A
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
24 11 JP1, JP3-JP7, JP9-JP11, JP13, JP15 HEADER, 1×3, 0.100" SAMTEC, TSW-103-07-L-S
25 2 JP2, JP8 HEADER, 2×3, 0.100" SAMTEC, TSW-103-07-L-D
26 2 J6, J7 HEADER, 2×5, 0.100" SAMTEC, TSW-105-07-L-D
27 5 J1, J2, J3, J4, J5 CONN BNC FEM JACK PC MNT STRGHT AMPHENOL CONNEX, 112404
28 1 L1 IND, FERRITE CHIP, 390Ω, 2000mA, 1206 MURATA, BLM31PG391SN1L
29 15 R1, R2, R10, R21, R27, R46-R48, R51,
R52, R57, R58, R60, R64, R66
RES., CHIP, 1k, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF1001V
30 0 R3, R7, R11, R22, R23, R25, R28, R29,
R32, R34, R36, R37, R49, R50, R54,
R123
RES., CHIP, 0603 OPT
31 2 R4, R17 RES., CHIP, 33Ω, 1/10W, 5%, 0603 PANASONIC, ERJ-3GEYJ330V
32 11 R5, R6, R12, R20, R24, R30, R31, R35,
R39, R40, R53
RES., CHIP, 0Ω, 1/10W, 0603 PANASONIC, ERJ-3GEY0R00V
33 4 R8, R18, R33, R44 RES., CHIP, 49.9Ω, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF49R9V
34 1 R9 RES., CHIP, 49.9Ω, 1/4W, 1%, 1206 PANASONIC, ERJ-8ENF49R9V,
35 4 R13, R16, R38, R43 RES., CHIP, 0Ω, 1/16W, 0402 PANASONIC, ERJ-2GE0R00X
36 4 R14, R15, R41, R42 RES., CHIP, 301, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF3010V
37 2 R19, R45 RES., CHIP, 150, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF1500V
38 0 R26, R75, R76, R99 RES., CHIP, 0402
39 2 R55, R56 RES., CHIP, 3.92k, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF3921V
40 1 R59 RES., CHIP, 499Ω, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF4990V
41 1 R61 RES., CHIP, 866Ω, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF8660V
42 1 R62 RES., CHIP, 3.09k, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF3091V
43 1 R63 RES., CHIP, 4.02k, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF4021V
44 1 R65 RES., CHIP, 1.43k, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF1431V
45 33 R69-R72, R77-R98, R100-R104, R119,
R120
RES., CHIP, 33Ω, 1/16W, 5%, 0402 PANASONIC, ERJ-2GEJ330X
46 1 R118 RES., CHIP, 1k, 1/16W, 1%, 0402 PANASONIC, ERJ-2EKF1001V
47 4 R105, R106, R107, R108 RES., CHIP, 4.99k, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF4991V
48 9 R109-R117 RES., CHIP, 10k, 1/16W, 5%, 0402 PANASONIC, ERJ-2GEYJ103V
49 1 R121 RES., CHIP, 10k, 1/16W, 5%, 0603 PANASONIC, ERJ-3GEYJ103V
50 1 R122 RES., CHIP, 100Ω, 1/10W, 1%, 0603 PANASONIC, ERJ-3EKF1000V
51 3 U2, U3, U7 IC, INVERTER, UHS, SINGLE, SC70-5 FAIRCHILD, NC7SZ04P5X
52 2 U4, U5 IC, 400MHz, AMPLIFIER, MS8 LINEAR TECHNOLOGY, LT1819CMS8#PBF
53 1 U6 IC, FLIP FLOP, D-TYPE LOG, US8 ON SEMI., NL17SZ74USG
54 2 U8, U9 IC, VOLTAGE REFERENCE, MSOP8 LINEAR TECHNOLOGY, LTC6655BHMS8-
4.096#PBF
55 2 U10, U21 IC, OP-AMP, MS8 LINEAR TECHNOLOGY, LT6202CS5#PBF
56 4 U11, U13, U14, U15 IC, MICROPOWER REGULATOR, SO8 LINEAR TECHNOLOGY, LT1763CS8#PBF
57 1 U12 IC, MICROPOWER NEG. REGULATOR,
SOT-23
LINEAR TECHNOLOGY, LT1964ES5-SD#PBF
58 1 U16 IC, MICROPOWER REGULATOR, SO8 LINEAR TECHNOLOGY, LT1763CS8-2.5#PBF
59 1 U17 IC, LINEAR REGULATOR, SO8 LINEAR TECHNOLOGY, LT3021ES8-1.2#PBF
PARTS LIST
6
dc1996afb
DEMO MANUAL DC1996A
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
60 1 U18 IC, EQFP, CYCLONE3, WIRE BOND,
EQFP144
ALTERA, EP3C5E144C7
61 1 U19 IC, 4-BIT, FLASH MEMORY, SO8 ALTERA, EPCS4SI8
62 1 U20 IC, EEPROM, 2kBIT, 400kHz, 8TSSOP MICROCHIP, 24LC024-I/ST
63 1 Y1 OSCILLATOR, 106.2500MHz, 3.3V, SMD CTS-FREQUENCY CONTROLS, CB3LV-3I-
106M2500
64 12 SHOWN ON ASSY DWG SHUNT, 0.100", 2POS SAMTEC, SNT-100-BK-G
65 4 MH1-MH4 STANDOFF, NYLON, 0.25" KEYSTONE, 8831 (SNAP-ON)
DC1996A-A Required Circuit Components
1 1 DC1996A GENERAL BOM
2 2 R67, R73 RES., CHIP, 1k, 1/16W, 5%, 0402 PANASONIC, ERJ-2EKF1001V
3 1 U1 I.C., DUAL SAR ADC, QFN28UFD-4X5 LINEAR TECHNOLOGY, LTC2323CUFD-16#PBF
DC1996A-B Required Circuit Components
1 1 DC1996A GENERAL BOM
2 2 R67, R73 RES., CHIP, 1k, 1/16W, 5%, 0402 PANASONIC, ERJ-2EKF1001V
3 1 U1 I.C., DUAL SAR ADC, QFN28UFD-4X5 LINEAR TECHNOLOGY, LTC2321CUFD-16#PBF
DC1996A-C Required Circuit Components
1 1 DC1996A GENERAL BOM
2 2 R68, R73 RES., CHIP, 1k, 1/16W, 5%, 0402 PANASONIC, ERJ-2EKF1001V
3 1 U1 I.C., DUAL SAR ADC, QFN28UFD-4X5 LINEAR TECHNOLOGY, LTC2323CUFD-14#PBF
DC1996A-D Required Circuit Components
1 1 DC1996A GENERAL BOM
2 2 R68, R73 RES., CHIP, 1k, 1/16W, 5%, 0402 PANASONIC, ERJ-2EKF1001V
3 1 U1 I.C., DUAL SAR ADC, QFN28UFD-4X5 LINEAR TECHNOLOGY, LTC2321CUFD-14#PBF
DC1996A-E Required Circuit Components
1 1 DC1996A GENERAL BOM
2 2 R67, R74 RES., CHIP, 1k, 1/16W, 5%, 0402 PANASONIC, ERJ-2EKF1001V
3 1 U1 I.C., DUAL SAR ADC, QFN28UFD-4X5 LINEAR TECHNOLOGY, LTC2323CUFD-12#PBF
DC1996A-F Required Circuit Components
1 1 DC1996A GENERAL BOM
2 2 R67, R74 RES., CHIP, 1k, 1/16W, 5%, 0402 PANASONIC, ERJ-2EKF1001V
3 1 U1 I.C., DUAL SAR ADC, QFN28UFD-4X5 LINEAR TECHNOLOGY, LTC2321CUFD-12#PBF
7
dc1996afb
DEMO MANUAL DC1996A
SCHEMATIC DIAGRAMS
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
200MHz MAX
CLK
2.5VPP
AIN1+
0V - 4.096V
1. ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS, 0603
NOTES: UNLESS OTHERWISE SPECIFIED
Msps
5A
ASSY
*U1
LTC2323CUFD-16
BITS
16
AIN1-
0V - 4.096V
MODE
DIFF
UNI
BIP
AIN2-
0V - 4.096V
MODE
AIN2+
0V - 4.096V
DIFF
UNI
BIP
B
C
LTC2321CUFD-16
LTC2321CUFD-14D
LTC2323CUFD-14
R67
1k OPT
COUPLING
COUPLING
COUPLING
COUPLING
ADD 20 MIL SQUARE
PAD OPENING ON
TOP SOLDER MASK
LAYER ON THESE
CONNETIONS.
16
14
14
2
2
5
R68
OPT 1k
R73 R74
1k OPT
E
F LTC2321CUFD-12
LTC2323CUFD-12 12
12
5
21k OPT OPT 1k
VCM_BIAS_1
VREF_1
VCM_BIAS_1
VCM_BIAS_1
VCM_BIAS_2
VREF_2
VCM_BIAS_2
VCM_BIAS_2
AIN2+
AIN2-
AIN1-
AIN1+
REFOUT2
REFOUT1
VREF_2
VCM_BIAS_2VCM_BIAS_1
VREF_1
VCCIO VCCIO VCCIO
VCCIO
V+
V-
V+
V-
VCCIOVCCIO VDD
V+
V-
+9V/+10V+9V/+10V
V+
V-
+3V
+3V
CSB
CLKOUT+
CLKOUT-
SDO2+
SDO2-
SCK+
SCK-
SDO1+
SDO1-
CLKIN
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 1996A
04/01/2014, 12:58 PM 1
2
KIM T.
DOUG S.
TRUE DIFFERENTIAL INPUT DUAL ADC
LTC232XCUFD FAMILY
B
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 1996A
04/01/2014, 12:58 PM 1
2
KIM T.
DOUG S.
TRUE DIFFERENTIAL INPUT DUAL ADC
LTC232XCUFD FAMILY
B
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 1996A
04/01/2014, 12:58 PM 1
2
KIM T.
DOUG S.
TRUE DIFFERENTIAL INPUT DUAL ADC
LTC232XCUFD FAMILY
B
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
DOUG S.PRODUCTION
204-01-14
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
DOUG S.PRODUCTION
204-01-14
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
DOUG S.PRODUCTION
204-01-14
JP9
AC DC
-IN1 JP9
AC DC
-IN1
1
3
2
C129
0.1uF
C129
0.1uF
R18
49.9
R18
49.9
R33
49.9
R33
49.9
C54
10uF
C54
10uF
JP4
AC DC
-IN2 JP4
AC DC
-IN2
1
3
2
C11
0.1uF
C11
0.1uF
J1J1
U3
NC7SZ04P5X
U3
NC7SZ04P5X
4
53
2
C45
1uF
C45
1uF
C19
0.1uF
C19
0.1uF
R52
1k
R52
1k
C53
10uF
6.3V
C53
10uF
6.3V
R13
0 0402
R13
0 0402
C35
OPT
C35
OPT
R25
OPT
R25
OPT
JP1
AC DC
+IN2 JP1
AC DC
+IN2
1
3
2
+
-
U5B
LT1819CMS8
+
-
U5B
LT1819CMS8
5
6
7
84
R51
1k
R51
1k
R30
0
R30
0
U7
NC7SZ04P5X
U7
NC7SZ04P5X
4
53
2
C39
1uF
C39
1uF
C28
10uF
6.3V
C28
10uF
6.3V
C51
0.1uF
C51
0.1uF
+
-
U4B
LT1819CMS8
+
-
U4B
LT1819CMS8
5
6
7
8 4
+
-
U5A
LT1819CMS8
+
-
U5A
LT1819CMS8
3
2
1
8 4
C29 0.1uFC29 0.1uF
C10
OPT
C10
OPT
R16
0 0402
R16
0 0402
C25
10uF
C25
10uF
C30
10uF
6.3V
C30
10uF
6.3V R31
0
R31
0
C5
0.1uF
C5
0.1uF
C43
1uF
C43
1uF
J2J2
R22
OPT
R22
OPT
U6
NL17SZ74
U6
NL17SZ74
CP
1
CLR
6
PR
7
D
2
Q
3
Q
5
VCC
8
GND
4
R8
49.9
R8
49.9
C23
0.1uF
C23
0.1uF
C32
1uF
C32
1uF
R10
1k
R10
1k
C56
4.7uF
C56
4.7uF
R54
OPT
R54
OPT
R53
0
R53
0
Y1
CB3LV
Y1
CB3LV
EOH
1
VCC
4
GND
2
OUT
3
JP6
EXT
ADC
CM1
JP6
EXT
ADC
CM1
1
3
2
C34
10uF
6.3V
C34
10uF
6.3V
C12
200pF
NP0
C12
200pF
NP0
R15
301
R15
301
C6
10uF
6.3V
C6
10uF
6.3V
C7
OPT
C7
OPT
R35 0R35 0
C9 0.1uFC9 0.1uF
C8
OPT
C8
OPT
R11 OPTR11 OPT
R2
1k
R2
1k
C2
0.1uF
C2
0.1uF
C130
0.1uF
C130
0.1uF
R43
0 0402
R43
0 0402
R1
1k
R1
1k
+
-
U21
LT6202CS5
+
-
U21
LT6202CS5
3
4
1
52
R7
OPT
R7
OPT
C22
0.1uF
C22
0.1uF
R19
150
R19
150
C20
10uF
6.3V
C20
10uF
6.3V
J5J5
C26
10uF
6.3V
C26
10uF
6.3V
C13
0.1uF
C13
0.1uF
C14
OPT
C14
OPT
C47
10uF
6.3V
C47
10uF
6.3V
C21
10uF
6.3V
C21
10uF
6.3V
JP3
LVDS
CMOS
DATA OUT
JP3
LVDS
CMOS
DATA OUT
1
3
2
+
-
U10
LT6202CS5
+
-
U10
LT6202CS5
3
4
1
52
R50
OPT
R50
OPT
C24
10uF
6.3V
C24
10uF
6.3V
R29
OPT
R29
OPT
JP8
HD2X3-100
JP8
HD2X3-100
1
3
5 6
4
2
R14
301
R14
301
C27
OPT
C27
OPT
U9
LTC6655BHMS8-4.096
U9
LTC6655BHMS8-4.096
SHDN
1
VIN
2
GND
3
GND
4
GND
5
VOUT_S
6
VOUT_F
7
GND
8
E2
EXT_CM2
E2
EXT_CM2
R9
49.9
1206
R9
49.9
1206
R32
OPT
R32
OPT
R5
0
R5
0
C36
OPT
C36
OPT
R44
49.9
R44
49.9
J3J3
R12 0R12 0
R21
1k
R21
1k
C3
10uF
6.3V
C3
10uF
6.3V
C17
10uF
6.3V
C17
10uF
6.3V
C48
10uF
6.3V
C48
10uF
6.3V
R45
150
R45
150
C15
1uF
C15
1uF
JP2
HD2X3-100
JP2
HD2X3-100
1
3
5 6
4
2
C1
0.1uF
C1
0.1uF
R121
10k
R121
10k
U1 *
QFN28UFD-4X5
U1 *
QFN28UFD-4X5
GND
4
GND
5
AIN1-
6
AIN1+
7
VDD2
8
CNVL
9
GND
10
REFRTN1
11
REFOUT1
12
VBYP1
13
OVDD
14
SDO1+
15
SDO1-
16
SCK+
21
SCK-
22
GND
23
VBYP2
24
LVDS
25
REFOUT2
26
REFRTN2
27
REFBG
28
GND
29
CLKOUT+
17
CLKOUT-
18
SDO2-
20
SDO2+
19
VDD1
1
AIN2+
2
AIN2-
3
C4 0.1uFC4 0.1uF
C52
0.1uF
C52
0.1uF
R46
1k
R46
1k
R28
OPT
R28
OPT
R27
1k
R27
1k
C31 4.7uFC31 4.7uF
R3
OPT
R3
OPT
C49
10uF
6.3V
C49
10uF
6.3V
R20
33
R20
33
E1
EXT_CM1
E1
EXT_CM1
C59
0.1uF
C59
0.1uF
R23
OPT
R23
OPT
C18
0.1uF
C18
0.1uF
C33 4.7uFC33 4.7uF
R41
301
R41
301
C58
0.1uF
C58
0.1uF
R39
0
R39
0
R49
OPT
R49
OPT
R24
0
R24
0
C42
2.2uF
C42
2.2uF
C38
1uF
C38
1uF
R122
100
R122
100
R34 OPTR34 OPT
JP7
EXT
ADC
CM2
JP7
EXT
ADC
CM2
1
3
2
JP5
AC DC
+IN1 JP5
AC DC
+IN1
1
3
2
J4J4
C55
4.7uF
C55
4.7uF
C16
10uF
6.3V
C16
10uF
6.3V
C44
2.2uF
C44
2.2uF
R48
1k
R48
1k
R123
OPT
R123
OPT
R42
301
R42
301
C40
OPT
C40
OPT
C46
OPT
C46
OPT
U2
NC7SZ04P5X
U2
NC7SZ04P5X
4
53
2
C57
10uF
6.3V
C57
10uF
6.3V
C41
200pF
NP0
C41
200pF
NP0
C37 0.1uFC37 0.1uF
R37
OPT
R37
OPT
C50
10uF
6.3V
C50
10uF
6.3V
U8
LTC6655BHMS8-4.096
U8
LTC6655BHMS8-4.096
SHDN
1
VIN
2
GND
3
GND
4
GND
5
VOUT_S
6
VOUT_F
7
GND
8
R40
0
R40
0
R6
0
R6
0
R38
0 0402
R38
0 0402
R4
33
R4
33
JP13
ON
OFF
OSC
JP13
ON
OFF
OSC
1
3
2
R17
33
R17
33
C60
OPT
C60
OPT
R36
OPT
R36
OPT
+
-
U4A
LT1819CMS8
+
-
U4A
LT1819CMS8
3
2
1
84
R47
1k
R47
1k
C61
10uF
6.3V
C61
10uF
6.3V
8
dc1996afb
DEMO MANUAL DC1996A
SCHEMATIC DIAGRAMS
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
-9V/-10V
V-
+9V/+10V
VCCIO
2.5V
1.8V
VCCIO
GND
+2.5V
+1.2V
VCCINT
+3V
V+
VDD
5V
3.3V
VDD
-9V/-10V
+9V/+10V
VCCIO
+2.5V
V-
+1.2V
+3V
V+
VDD
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 1996A
04/01/2014, 01:00 PM 2
2
KIM T.
DOUG S.
TRUE DIFFERENTIAL INPUT DUAL ADC
LTC232XCUFD-16/-14 FAMILY
B
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 1996A
04/01/2014, 01:00 PM 2
2
KIM T.
DOUG S.
TRUE DIFFERENTIAL INPUT DUAL ADC
LTC232XCUFD-16/-14 FAMILY
B
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 1996A
04/01/2014, 01:00 PM 2
2
KIM T.
DOUG S.
TRUE DIFFERENTIAL INPUT DUAL ADC
LTC232XCUFD-16/-14 FAMILY
B
E4E4
E3E3
U12
LT1964ES5-SD
U12
LT1964ES5-SD
ADJ
4
OUT
5
GND
1
IN
2
SHDN
3
R66
1k
R66
1k
U14
LT1763CS8
U14
LT1763CS8
OUT
1
SEN
2
GND
3
BYP
4
SHDN
5
GND
6
GND
7
IN
8
R62
3.09k
R62
3.09k
C71
1uF
16V
C71
1uF
16V
E8E8
E9E9
C67
1uF
16V
C67
1uF
16V
C65
1uF
16V
C65
1uF
16V
E5E5
C68
1uF
16V
C68
1uF
16V
C73
10uF
10V
0805
C73
10uF
10V
0805
R59
499
R59
499
R61
866
R61
866
C75
0.01uF
C75
0.01uF
R63
4.02k
R63
4.02k
JP10JP10
1
3
2
E10E10
C79
10uF
6.3V
C79
10uF
6.3V
C69
0.01uF
C69
0.01uF C70
10uF
6.3V
C70
10uF
6.3V
C64
10uF
0805
10V
C64
10uF
0805
10V
R57
1k
R57
1k
E11E11
C76
10uF
6.3V
C76
10uF
6.3V
U13
LT1763CS8
U13
LT1763CS8
OUT
1
SEN
2
GND
3
BYP
4
SHDN
5
GND
6
GND
7
IN
8
U11
LT1763CS8
U11
LT1763CS8
OUT
1
SEN
2
GND
3
BYP
4
SHDN
5
GND
6
GND
7
IN
8
C66
10uF
10V
0805
C66
10uF
10V
0805
C81
10uF
6.3V
C81
10uF
6.3V
C74
1uF
16V
C74
1uF
16V
E6E6
R65
1.43k
R65
1.43k
U16
LT1763CS8-2.5
U16
LT1763CS8-2.5
OUT
1
SEN
2
GND
3
BYP
4
SHDN
5
GND
6
GND
7
IN
8
R56
3.92k
R56
3.92k
E7E7
C78
0.01uF
C78
0.01uF
C63
0.01uF
C63
0.01uF
E12E12
U17
LT3021ES8-1.2
U17
LT3021ES8-1.2
OUT
2
SEN
3
AGND
4
SHDN
5
GND
6
IN
8
JP11JP11
1
3
2
R60
1k
R60
1k
R64
1k
R64
1k
C77
1uF
16V
C77
1uF
16V
R58
1k
R58
1k
C62
47uF
1210
16V
C62
47uF
1210
16V
U15
LT1763CS8
U15
LT1763CS8
OUT
1
SEN
2
GND
3
BYP
4
SHDN
5
GND
6
GND
7
IN
8
C72
0.01uF
C72
0.01uF
C80
3.3uF
16V
C80
3.3uF
16V
R55
3.92k
R55
3.92k
9
dc1996afb
DEMO MANUAL DC1996A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SCHEMATIC DIAGRAMS
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
1. ALL RESISTORS AND CAPACITORS ON THIS PAGE ARE 0402.
NOTES: UNLESS OTHERWISE SPECIFIED
2. SEE ASSEMBLY TABLE ON PAGE 1 FOR R67, R68, R73, AND R74 VALUES.
JTAG
FPGA
PROGRAM
DA0
VCCD_PLL
TDI
TMS
TCK
TDO
TCK
TDO
TMS
TDI
NCE
DA1
DA2
DA3
DA4
DA5
DA6
DA7
DA8
DA9
DA10
DA11
DA12
DA13
DA14
CNVCLK
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DB10
DB11
DB12
DB13
DB14
DB12
DB13
DB14
CNVCLK
DA0
DA1
DA2 DA3
DA4
DA5
DA6
DA7
DA8
DA9
DA12
DA13
DA14
DB0
DA10
DA11
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DB10
DB11
DB15
DA15
DB15
DA15
VCCIO
+1.2V
+2.5V
+1.2V
VCCIO
+3V +3V +3V +3V
+3V
+2.5V
VCCIO
+3V
VCCIO
VCCIO
VCCIO
+3V +3V
CLKIN
CSB
SDO1-
SDO1+
SDO2-
SDO2+
CLKOUT+
CLKOUT-
SCK-
SCK+
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 1996A
04/01/2014, 12:59 PM 3
2
KIM T.
DOUG S.
TRUE DIFFERENTIAL INPUT DUAL ADC
LTC232XCUFD-16/-14 FAMILY
B
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 1996A
04/01/2014, 12:59 PM 3
2
KIM T.
DOUG S.
TRUE DIFFERENTIAL INPUT DUAL ADC
LTC232XCUFD-16/-14 FAMILY
B
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 1996A
04/01/2014, 12:59 PM 3
2
KIM T.
DOUG S.
TRUE DIFFERENTIAL INPUT DUAL ADC
LTC232XCUFD-16/-14 FAMILY
B
33R103 33R103
C115
10pF
C115
10pF
U19
EPCS4SI8
U19
EPCS4SI8
ASDI
5
VCC
8
NCS
1
DATA
2
VCC
3
GND
4
VCC
7
DCLK
6
C113
4.7nF
C113
4.7nF
C128
4.7nF
C128
4.7nF
R73
*
R73
*
C123
0.1uF
C123
0.1uF
33R101 33R101
C125
0.1uF
C125
0.1uF
EEPROM
ARRAY
U20
24LC024-I /ST
EEPROM
ARRAY
U20
24LC024-I /ST
SDA
5
VCC
8
A0
1
A1
2
A2
3
GND
4
WP
7
SCL
6
C94
0.1uF
C94
0.1uF
R107
4.99k
0603
R107
4.99k
0603
C110
22nF
C110
22nF
33R85 33R85
R106
4.99k
0603
R106
4.99k
0603
33R91 33R91
R114
10k
R114
10k
C117
10pF
C117
10pF
33R90 33R90
33R84 33R84
BANK3
U18D
CYCLONE3-EP3C5E144
BANK3
U18D
CYCLONE3-EP3C5E144
IO1_DIFFIOB1P
38
IO2_DIFFIOB1N
39
IO3
42
IO4
43
IO5
44
IO6_VREF3
46
IO7_DIFFIOB9P
49
IO8_DIFFIOB9N
50
IO9
51
IO10_DIFFIOB11P
52
IO11_DIFFIOB11N
53
C114
10pF
C114
10pF
C103
0.1uF
C103
0.1uF
33R88 33R88
33R98 33R98
33R104 33R104
C104
0.1uF
C104
0.1uF
33R87 33R87
R75
OPT
R75
OPT
JP12
PROG
WP
EEPROM
JP12
PROG
WP
EEPROM
1
3
2
D3
BAT54WS
D3
BAT54WS
12
C102
0.1uF
C102
0.1uF
33R89 33R89
C119
4.7uF
0603
C119
4.7uF
0603
33R96 33R96
33R102 33R102
D4
BAT54WS
D4
BAT54WS
12
R111
10k
R111
10k
D1
BAT54WS
D1
BAT54WS
12
C101
0.1uF
C101
0.1uF
33R86 33R86
CONFIG
U18J
CYCLONE3-EP3C5E144
CONFIG
U18J
CYCLONE3-EP3C5E144
IO1_DATA1
6
IO2_FLASH_NCE
8
N_STATUS
9
DCLK
12
IO3_DATA0
13
NCONFIG
14
TDI
15
TCK
16
TMS
18
TDO
20
NCE
21
IO4_DEV_OE
86
IO5_DEV_CLRN
87
CONF_DONE
92
MSEL0
94
MSEL1
96
MSEL2
97
IO6_INIT_DONE
98
IO7_CRC_ERROR
99
IO8_NCEO
101
IO9_CLKUSR
103
33R69 33R69
33R94 33R94
C98
0.1uF
C98
0.1uF
R118
1k
R118
1k
C100
0.1uF
C100
0.1uF
P1
EDGE-CON-100
P1
EDGE-CON-100
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
97
99
C120
0.01uF
C120
0.01uF
C95
0.1uF
C95
0.1uF
R105
4.99k
0603
R105
4.99k
0603
33R70 33R70
R116
10k
R116
10k
C99
0.1uF
C99
0.1uF
BANK1
U18B
CYCLONE3-EP3C5E144
BANK1
U18B
CYCLONE3-EP3C5E144
IO1
1
IO2
2
IO3
3
IO4
4
IO5_VREF1
7
IO6_DIFFL4P
10
IO7_DIFFL4N
11
CLK0
22
CLK1
23
L1
BLM31PG391SN1L
L1
BLM31PG391SN1L
R76
OPT
R76
OPT
33R119 33R119
R115
10k
R115
10k
R99
OPT
R99
OPT
C90
0.1uF
C90
0.1uF
33R78 33R78
R74
*
R74
*
BANK8
U18I
CYCLONE3-EP3C5E144
BANK8
U18I
CYCLONE3-EP3C5E144
IO1_DIFFIOT11N
128
IO2_DIFFIOT11P
129
IO3_DIFFIOT10N
132
IO4_DIFFIOT10P
133
IO5
135
IO6_VREF8
136
IO7
137
IO8
138
IO9
141
IO10
142
IO11_DIFFIOT01N
143
IO12_DIFFIOT01P
144
C82
0.1uF
0603
C82
0.1uF
0603
33R71 33R71
33R120 33R120
C122
0.1uF
C122
0.1uF
+
C118
470uF
7343
+
C118
470uF
7343
BANK6
U18G
CYCLONE3-EP3C5E144
BANK6
U18G
CYCLONE3-EP3C5E144
CLK5_DIFFCLK2N
90
CLK4_DIFFCLK2P
91
IO1
100
IO2
104
IO3_VREF6
105
IO4
106
C89
0.1uF
C89
0.1uF
C121
0.01uF
C121
0.01uF
C108
0.1uF
C108
0.1uF
C124
0.1uF
C124
0.1uF
R109
10k
R109
10k
C127
2.2nF
C127
2.2nF
R112
10k
R112
10k
33R83 33R83 33R92 33R92
D2
BAT54WS
D2
BAT54WS
12
C107
0.01uF
C107
0.01uF
R26
OPT
R26
OPT
C116
10pF
C116
10pF
C126
0.1uF
C126
0.1uF
33R72 33R72
33R82 33R82
33R81 33R81
C96
0.1uF
C96
0.1uF
33R80 33R80
PWR
U18A
CYCLONE3-EP3C5E144
PWR
U18A
CYCLONE3-EP3C5E144
GND
19
GND
27
GNDA1
36
GND
41
GND
48
GND
57
GND
63
GND
82
GND
95
GNDA2
108
GND
118
GND
123
GND
131
GND
140
GND
145
VCCINT
5
VCCINT
29
VCCINT
45
VCCINT
61
VCCINT
78
VCCINT
102
VCCINT
116
VCCINT
134
VCCIO1
17
VCCIO2
26
VCCIO3
40
VCCIO3
47
VCCIO4
56
VCCIO4
62
VCCIO5
81
VCCIO6
93
VCCIO7
117
VCCIO7
122
VCCIO8
130
VCCIO8
139
VCCA1
35
VCCA2
107
VCCD_PLL1
37
VCCD_PLL2
109
C88
0.1uF
C88
0.1uF
33R79 33R79
33R100 33R100
C93
0.1uF
C93
0.1uF
J7
HD2X5-100
J7
HD2X5-100
1
3
56
4
2
7
9
8
10
C87
0.1uF
C87
0.1uF
R108
4.99k
0603
R108
4.99k
0603
33R97 33R97
33R77 33R77
C91
0.1uF
0402
C91
0.1uF
0402
BANK5
U18F
CYCLONE3-EP3C5E144
BANK5
U18F
CYCLONE3-EP3C5E144
IO1
73
IO2
74
IO3
75
IO4_RUP3
76
IO4_RDN3
77
IO5
79
IO6_VREF5
80
IO8_DIFFIOR8N
84
IO9_DIFFIOR8P
85
CLK7_DIFFCLK3N
88
CLK6_DIFFCLK3P
89
IO7
83
C86
0.1uF
C86
0.1uF
BANK4
U18E
CYCLONE3-EP3C5E144
BANK4
U18E
CYCLONE3-EP3C5E144
IO1_DIFFIOB12P
54
IO2_DIFFIOB12N
55
IO3
58
IO4_DIFFIOB16P
59
IO5_DIFFIOB16N
60
IO6
64
IO7_VREF4
65
IO8_RUP2
66
IO9_RDN2
67
IO10
68
IO11
69
IO12_DIFFIOB21P
70
IO14
72
IO13_DIFFIOB21N
71
C111
22nF
C111
22nF
C109
1nF
C109
1nF
33R95 33R95
C85
0.1uF
C85
0.1uF
R113
10k
R113
10k
33R93 33R93
R117
10k
R117
10k
J6
HD2X5-100
J6
HD2X5-100
1
3
56
4
2
7
9
8
10
BANK2
U18C
CYCLONE3-EP3C5E144
BANK2
U18C
CYCLONE3-EP3C5E144
CLK2
24
CLK3
25
IO1
28
IO2
30
IO3_VREF2
31
IO4_RUP1
32
IO5_RDN1
33
IO6
34
C105
47uF
0805
C105
47uF
0805
C106
4.7uF
0603
C106
4.7uF
0603
R67
*
R67
*
C84
0.1uF
C84
0.1uF
BANK7
U18H
CYCLONE3-EP3C5E144
BANK7
U18H
CYCLONE3-EP3C5E144
IO1
110
IO2
111
IO3
112
IO4
113
IO5_RUP4
114
IO6_RDN4
115
IO7_VREF7
119
IO8_DIFFIOT16N
120
IO9_DIFFIOT16P
121
IO10
124
IO11
125
IO12_DIFFIOT12N
126
IO13_DIFFIOT12P
127
R68
*
R68
*
C97
0.1uF
C97
0.1uF
C112
22nF
C112
22nF
R110
10k
R110
10k
C83
0.1uF
C83
0.1uF
C92
0.1uF
0402
C92
0.1uF
0402
10
dc1996afb
DEMO MANUAL DC1996A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 2014
LT 0414 REV B • PRINTED IN USA
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LT C ) provides the enclosed product(s) under the following AS IS conditions:
This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT
OR EVALUATION PURPOSES ONLY and is not provided by LT C for commercial use. As such, the DEMO BOARD herein may not be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety
measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union
directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date
of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LT C from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or
agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LT C assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LT C currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and
observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LT C applica-
tion engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
