REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
a
CMP401/CMP402
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 2002
23 ns and 65 ns
Low Voltage Comparators
FUNCTIONAL BLOCK DIAGRAM
OUTPUT
IN+
IN–
V
DIGITAL
=
3V OR 5V
NOTE: (V
ANALOG+
) – (V
ANALOG–
) 3V
V
ANALOG+
=
0V OR 5V
V
ANALOG–
=
+0V OR –5V
FEATURES
23 ns or 65 ns Propagation Delay
Single-Supply Operation
Compatible with 3 V and 5 V Logic
Separate Input and Output Sections
Low Power
Wide Input Range: –5 V to +3.9 V
APPLICATIONS
Battery-Operated Instrumentation
Line Receivers
Level Translators
Read Channel Detection
10
0%
2v
10nS
50mV
100
90
CMP401: 20 MHz Noninverting Switching, V
IN
=
±
100 mV
GENERAL DESCRIPTION
The CMP401 and CMP402 are 23 ns and 65 ns quad comp-
arators with separate input and output supplies. Separate supplies
enable the input stage to be operated from +3 V to as high as ±6V.
The output can be supplied with either 3 V or 5 V as determined
by the interface logic or available supplies. Independent input
and output supplies combined with fast propagation make the
CMP401 and CMP402 excellent choices for interfacing to
portable instrumentation.
The CMP401 and CMP402 are specified over the extended indus-
trial (–40°C to +125°C) temperature range. Both are available in
narrow SO-16 surface-mount packages and 16-lead TSSOP.
REV. A
–2–
CMP401/CMP402–SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage
1
V
OS
T
A
= 25°C3mV
V
OS
4mV
Hysteresis 2mV
Input Bias Current I
B
T
A
= 25°C3µA
I
B
4µA
Input Offset Current I
OS
±3µA
Input Common-Mode Voltage Range V
CM
04.0V
Common-Mode Rejection CMRR 0.1 V ≤ V
CM
≤ 3.9 V 60 dB
Large-Signal Voltage Gain A
VO
R
L
= 10 kΩ10 V/mV
Offset Voltage Drift ∆V
OS
/∆T1µV/°C
OUTPUT CHARACTERISTICS
Output High Voltage V
OH
I
OH
= –3.2 mA 4.6 V
Output Low Voltage V
OL
I
OL
= 3.2 mA 0.2 V
POWER SUPPLY
Power Supply Rejection Ratio PSRR V+
ANA
and V+
DIG
2.7 V to 6 V 60 dB
Analog Supply Current – CMP401 I
ANA
T
A
= 25°C6.5mA
Digital Supply Current – CMP401 I
DIG
V
O
= 0 V, R
L
= ∞, T
A
= 25°C2.0mA
Analog Supply Current – CMP401 I
ANA
8.0 mA
Digital Supply Current – CMP401 I
DIG
V
O
= 0 V, R
L
= ∞2.25 mA
Analog Supply Current – CMP402 I
ANA
T
A
= 25°C1.4mA
Digital Supply Current – CMP402 I
DIG
V
O
= 0 V, R
L
= ∞, T
A
= 25°C2.0mA
Analog Supply Current – CMP402 I
ANA
1.75 mA
Digital Supply Current – CMP402 I
DIG
V
O
= 0 V, R
L
= ∞2.25 mA
DYNAMIC PERFORMANCE
Propagation Delay – CMP401 t
P
100 mV Step with 20 mV OD
T
A
= 25°C1723ns
t
P
100 mV Step with 5 mV OD
T
A
= 25°C33ns
t
P
100 mV Step with 20 mV OD 30 ns
Propagation Delay – CMP402 t
P
100 mV Step with 20 mV OD
T
A
= 25°C5465ns
t
P
100 mV Step with 5 mV OD
T
A
= 25°C60ns
t
P
100 mV Step with 20 mV OD 75 ns
ELECTRICAL SPECIFICATIONS
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage
1
V
OS
4.5 mV
Input Common-Mode Voltage Range V
CM
0 2.0 V
Input Differential Voltage Range V
DIFF
±2.0 V
Common-Mode Rejection CMRR 0.1 V ≤ V
CM
≤ 1.9 V 60 dB
OUTPUT CHARACTERISTICS
Output High Voltage V
OH
I
OH
= –3.2 mA 2.6 V
Output Low Voltage V
OL
I
OL
= 3.2 mA 0.25 V
POWER SUPPLY
Power Supply Rejection Ratio PSRR V+
ANA
and V+
DIG
2.7 V to 6 V 60 dB
Analog Supply Current – CMP401 I
ANA
6mA
Digital Supply Current – CMP401 I
DIG
V
O
= 0 V, R
L
= ∞1mA
Analog Supply Current – CMP402 I
ANA
1.2 mA
Digital Supply Current – CMP402 I
DIG
V
O
= 0 V, R
L
= ∞1mA
DYNAMIC PERFORMANCE
Propagation Delay – CMP401 t
P
100 mV Step with 20 mV OD 32 ns
Propagation Delay – CMP402 t
P
100 mV Step with 20 mV OD 70 ns
(@ V+ANA = V+DIG = 5.0 V, VCM = 0.1 V, –40ⴗC ≤ TA ≤ +125ⴗC, unless otherwise noted.)
(@ VANA = VDIG = 3.0 V, VCM = 0.1 V, TA = 25ⴗC, unless otherwise noted.)
REV. A –3–
CMP401/CMP402
ELECTRICAL SPECIFICATIONS
(@ V±ANA = ±5 V, VDIG = 5.0 V, TA = 25ⴗC, unless otherwise noted.)
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage
1
V
OS
V
CM
= 0 V 3 mV
Input Common-Mode Voltage Range V
CM
–5.0 +4.0 V
Input Differential Voltage Range V
DIFF
±8.0 V
Common-Mode Rejection CMRR –4.9 V ≤ V
CM
≤ 3.9 V 60 dB
Offset Voltage Drift ∆V
OS
/∆T15µV/°C
POWER SUPPLY
Power Supply Rejection Ratio PSRR V±
ANA
±3 V to ±6 V 60 dB
Analog Supply Current – CMP401 I
ANA
6.5 mA
Digital Supply Current – CMP401 I
DIG
V
O
= 0 V, R
L
= ∞2.0 mA
Analog Supply Current – CMP402 I
ANA
2.0 mA
Digital Supply Current – CMP402 I
DIG
V
O
= 0 V, R
L
= ∞2.0 mA
DYNAMIC PERFORMANCE
Propagation Delay – CMP401 t
P
100 mV Step with 20 mV OD 23 ns
Propagation Delay – CMP402 t
P
100 mV Step with 20 mV OD 65 ns
NOTES
1
Offset voltage is defined as (V
OS+
+ V
OS–
)/2.
Specifications subject to change without notice.
REV. A
CMP401/CMP402
–4–
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the CMP401/CMP402 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions
are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
ABSOLUTE MAXIMUM RATINGS
1
Total Analog Supply Voltage . . . . . . . . . . . . . . . . . . . . . . 16 V
Digital Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Analog Positive Supply—Digital Positive Supply . . . . –200 mV
Input Voltage
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±7 V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . ±9 V
Output Short-Circuit Duration to GND . . . . . . . . . Indefinite
Storage Temperature Range
S, RU Package . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Operating Temperature Range
CMP401G, CMP402G . . . . . . . . . . . . . . –40°C to +125°C
Junction Temperature Range
S, RU Package . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering 60 sec) . . . . . . . . . 300°C
Package Type ␪
JA3
␪
JC
Units
16-Lead SO (S) 113 37 °C/W
16-Lead TSSOP (RU) 180 37 °C/W
NOTES
1
Absolute Maximum Ratings apply to packaged parts, unless otherwise noted.
2
The analog input voltage is equal to ±7 V or the analog supply voltage, whichever
is less.
3
␪
JA
is specified for the worst-case conditions, i.e., ␪
JA
is specified for device soldered
in circuit board for SOIC and TSSOP packages.
PIN CONFIGURATIONS
16-Lead Narrow-SO
(S-Suffix)
14
13
12
11
16
15
10
9
8
1
2
3
4
7
6
5
OUT B
OUT A
V+ DIG
V+ ANA
–IN A
+IN A
–IN B
+IN B
V– ANA
DIG GND
OUT D
OUT C
–IN C
+IN D
–IN D
+IN C
TOP VIEW
(Not to Scale)
CMP401/
402
16-Lead
TSSOP
(RU-Suffix)
OUT B
OUT A
V+ DIG
V+ ANA
–IN A
+IN A
–IN B
+IN B
V– ANA
DIG GND
OUT D
OUT C
–IN C
+IN D
–IN D
+IN C
116
89
TOP VIEW
(Not to Scale)
CMP401/
402
ORDERING GUIDE
Temperature Package Package
Model Range Description Option
CMP401GS –40°C to +125°C 16-Lead SOIC R-16A
CMP401GRU –40°C to +125°C 16-Lead TSSOP RU-16
CMP402GS –40°C to +125°C 16-Lead SOIC R-16A
CMP402GRU –40°C to +125°C 16-Lead TSSOP RU-16
+IN –IN
V+ ANA
V– ANA
V+ DIG
OUT
DIG GND
Figure 1. Simplified Schematic
REV. A –5–
Typical Performance Characteristics–CMP401/CMP402
OVERDRIVE – mV
PROPAGATION DELAY – ns
40
35
0010 50
20 30 40
20
15
10
5
30
25
+PDELAY
–PDELAY
+VAN = +VDIG = 5V
–VAN = 0V TO –5V
RS 50⍀, CL = 15pF
TA
= 25ⴗC
TPC 1. CMP401 Propagation Delay
vs. Overdrive
TEMPERATURE – ⴗC
PROPAGATION DELAY – ns
90
30
–50 –25 125
0 255075100
80
70
60
50
40
+V
AN
= +V
DIG
= 5V
–V
AN
= 0V TO –5V
R
S
50⍀, C
L
= 15pF
+P
DELAY
–P
DELAY
TPC 4. CMP402 Propagation Delay
vs. Temperature – 5 mV OD
SOURCE RESISTANCE – ⍀
90
80
010 100 100k
1k 10k
40
30
20
10
70
60
50
PROPAGATION DELAY – ns
+V
AN
= +V
DIG
= +V
–V
AN
= 0V TO –5V
T
A
= 25ⴗC
+P
DELAY
–P
DELAY
TPC 7. CMP401 Propagation Delay
vs. Source Resistance – 20 mV OD
OVERDRIVE – mV
PROPAGATION DELAY – ns
110
90
20010 50
20 30 40
60
50
40
30
80
70
+VAN = +VDIG = 5V
–VAN = 0V TO –5V
RS 50⍀, CL = 15pF
TA = 25ⴗC
+PDELAY
–PDELAY
TPC 2. CMP402 Propagation Delay
vs. Overdrive
TEMPERATURE – ⴗC
PROPAGATION DELAY – ns
30
0
–50 –25 125
0 255075100
25
20
15
10
5
+V
AN
= +V
DIG
= +5V
–V
AN
= 0V TO –5V
R
S
50⍀, C
L
= 15pF
+P
DELAY
–P
DELAY
TPC 5. CMP401 Propagation Delay
vs. Temperature – 20 mV OD
SOURCE RESISTANCE – ⍀
PROPAGATION DELAY – ns
120
100
010 100 100k
1k 10k
80
60
40
20
+VAN = +VDIG = 5V
–VAN = 0V TO –5V
TA = 25ⴗC
+PDELAY
–PDELAY
TPC 8. CMP402 Propagation Delay
vs. Source Resistance – 20 mV OD
TEMPERATURE – ⴗC
PROPAGATION DELAY – ns
40
10
–50 –25 125
0 255075100
35
30
25
20
15
+P
DELAY
–P
DELAY
+V
AN
= +V
DIG
= 5V
–V
AN
= 0V TO –5V
R
S
50⍀, C
L
= 15pF
TPC 3. CMP401 Propagation Delay
vs. Temperature – 5 mV OD
TEMPERATURE – ⴗC
PROPAGATION DELAY – ns
60
0
–50 –25 125
0 255075100
50
40
30
20
10
+V
AN
= +V
DIG
= 5V
–V
AN
= 0V TO –5V
R
S
50⍀, C
L
= 15pF
+P
DELAY
–P
DELAY
TPC 6. CMP402 Propagation Delay
vs. Temperature – 20 mV OD
POSITIVE SUPPLY VOLTAGE – V
PROPAGATION DELAY – ns
80
70
002 6
34 5
40
30
20
10
60
50
+V
AN
= +V
DIG
–V
AN
= 0V TO –5V
R
S
50⍀, C
L
= 15pF
T
A
= 25ⴗC
+P
DELAY
–P
DELAY
TPC 9. CMP401 Propagation Delay vs.
Supply Voltage – 20 mV OD
REV. A
CMP401/CMP402
–6–
POSITIVE SUPPLY VOLTAGE – V
110
100
30 12 6
34 5
70
60
50
40
90
80
PROPAGATION DELAY – ns
+V
AN
= +V
DIG
–V
AN
= 0V TO –5V
R
S
50⍀, C
L
= 15pF
T
A
= 25ⴗC
+P
DELAY
–P
DELAY
TPC 10. CMP402 Propagation Delay
vs. Supply Voltage – 20 mV OD
POSITIVE SUPPLY VOLTAGE – V
SLEWRATE – V/µs
1200
1000
012 6
34 5
800
600
400
200
+V
AN
= +V
DIG
–V
AN
= 0V TO –5V
R
S
50⍀, C
L
= 15pF
T
A
= 25ⴗC
–SLEW +SLEW
TPC 13. CMP401/CMP402 Slew Rate
vs. Positive Supply Voltage
TEMPERATURE – ⴗC
INPUT OFFSET VOLTAGE – mV
2.5
2.0
0
–75 –50 150
–25 0 25 75 100 12550
1.5
1
0.5
TPC 16. CMP401/CMP402 Input
Offset Voltage vs. Temperature
CAPACITIVE LOAD – pF
PROPAGATION DELAY – ns
50
40
00 100 500
200 300 400
30
20
10
45
35
25
15
5
+VAN = +VDIG = 5V
–VAN = 0V TO –5V
RS = 50⍀, TA = 25ⴗC
+PDELAY
–PDELAY
TPC 11. CMP401 Propagation Delay
vs. Capacitive Load
SUPPLY VOLTAGE – V
PROPAGATION DELAY – ns
80
70
012 6
34 5
40
30
20
10
60
50
–P
DELAY
+P
DELAY
+V
AN
= +V
DIG
–V
AN
= 0V TO –5V
R
S
50⍀, C
L
= 15pF
T
A
= 25ⴗC
TPC 14. CMP401 Propagation Delay
vs. Supply Voltage
TEMPERATURE – ⴗC
2.0
1.6
0.0
–75 –50 150
–25 0 25 75 100 12550
1.2
0.8
0.4
5V
DIGITAL DC SUPPLY CURRENT – mA
3V
TPC 17. CMP401 Digital Supply
Current vs. Temperature
CAPACITIVE LOAD – pF
PROPAGATION DELAY – ns
90
80
00 100 500
200 300 400
40
30
20
10
70
50
60
+V
AN
= +V
DIG =
5V
–V
AN
= 0V TO –5V
R
S
50⍀, T
A
= 25ⴗC
+P
DELAY
–P
DELAY
TPC 12. CMP402 Propagation Delay
vs. Capacitive Load
LOAD CURRENT – µA
1000
10
0.11 10 100000
100 1000 10000
100
1
DELTA OUTPUT SWING – mV
T
A
= 25ⴗC
–RAIL
+ RAIL
TPC 15. CMP401/CMP402 Delta Out-
put Swing from Power Supplies vs.
Load Current
TEMPERATURE – ⴗC
2.0
1.6
0.0
–75 –50 150
–25 0 25 75 100 12550
1.2
0.8
0.4
5V
DIGITAL DC SUPPLY CURRENT – mA
3V
TPC 18. CMP402 Digital Supply
Current vs. Temperature
REV. A –7–
Typical Performance Characteristics–CMP401/CMP402
DIGITAL SUPPLY VOLTAGE – V
DIGITAL SUPPLY CURRENT – mA
1.6
1.2
0.015
234
0.8
0.4
+125ⴗC
+25ⴗC
–40ⴗC
TPC 19. CMP401 Digital Supply
Current vs. Digital Supply Voltage
TEMPERATURE – ⴗC
ANALOG SUPPLY CURRENT – mA
1.4
1.2
0.4
–75 –50 150
–25 0 25 75 100 12550
1.0
0.8
0.6
+5V
5V
+3V
TPC 22. CMP402 Analog Supply
Current vs. Temperature
DIGITAL SUPPLY VOLTAGE – V
DIGITAL SUPPLY CURRENT – mA
1.6
1.2
0.015
234
0.8
0.4
+125ⴗC
+25ⴗC
–40ⴗC
TPC 20. CMP402 Digital Supply
Current vs. Digital Supply Voltage
ANALOG SUPPLY VOLTAGE – V
7.0
6.0
2.012 10
345 7896
5.0
4.0
3.0
ANALOG SUPPLY CURRENT – mA
+25ⴗC
+125ⴗC
–40ⴗC
TPC 23. CMP401 Analog Supply
Current vs. Analog Supply Voltage
TEMPERATURE – ⴗC
ANALOG SUPPLY CURRENT – mA
7.0
6.0
2.0
–75 –50 150
–25 0 25 75 100 12550
5.0
4.0
3.0
+5V
5V
+3V
TPC 21. CMP401 Analog Supply
Current vs. Temperature
ANALOG SUPPLY VOLTAGE – V
1.4
1.2
0.412 10
345 7896
1.0
0.8
0.6
ANALOG SUPPLY CURRENT – mA
+25ⴗC
+125ⴗC
–40ⴗC
TPC 24. CMP402 Analog Supply
Current vs. Analog Supply Voltage
REV. A
–8–
C00267–0–2/02(A)
PRINTED IN U.S.A.
CMP401/CMP402
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
16-Lead Narrow-SOIC
(R-16A)
PIN 1
0.1574 (4.00)
0.1497 (3.80)
0.2440 (6.20)
0.2284 (5.80)
1
16 9
8
0.0500 (1.27)
0.0160 (0.41)
8°
0°
0.0196 (0.50)
0.0099 (0.25) x 45 °
0.0099 (0.25)
0.0075 (0.19)
0.0192 (0.49)
0.0138 (0.35)
0.0500 (1.27)
BSC
0.0688 (1.75)
0.0532 (1.35)
0.0098 (0.25)
0.0040 (0.10)
0.3937 (10.00)
0.3859 (9.80)
16-Lead TSSOP
(RU-16)
16 9
8
1
0.201 (5.10)
0.193 (4.90)
0.256 (6.50)
0.246 (6.25)
0.177 (4.50)
0.169 (4.30)
PIN 1
SEATING
PLANE
0.006 (0.15)
0.002 (0.05)
0.0118 (0.30)
0.0075 (0.19)
0.0256
(0.65)
BSC
0.0433
(1.10)
MAX
0.0079 (0.20)
0.0035 (0.090)
0.028 (0.70)
0.020 (0.50)
8°
0°
Revision History
Location Page
Data Sheet changed from REV. 0 to REV. A.
Edits to GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Edits to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Edits to PACKAGE TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Edits to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Deleted DICE CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Edits to CMP401/CMP402 PIN CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4