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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
TRANSIMPEDANCE AMPS - SMT
11
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HMC799LP3E
v01.1009
Functional Diagram
Electrical Specications, TA = +25° C, Vcc1 = Vcc2 = Vcc3 = +5V
The HMC799LP3E is ideal for:
• Laser Sensor
• FDDI Receiver
• CATV FM Analog Receiver
• Wideband Gain Block
• Low Noise RF Applications
10 kOhm Transimpedance
Very Low Noise: 150nA Input RMS Noise
over 700 MHz Bandwidth
700 MHz Analog Bandwidth
Wide Dynamic Range: +65 dB
Low Power: 70mA from Single +5V Supply
16 Lead 3x3 mm SMT Package: 9mm²
The HMC799LP3E is DC to 700 MHz Transimpe-
dance amplier designed for opto-electronic laser
sensor applications, FDDI receivers and receiver
systems employing optical to electrical conversion.
This amplier provides a single-ended output voltage
that is proportional to an applied current at its input
port. This current is typically provided by a photo-
diode. Operating from a single +5V supply,
HMC799LP3E features very low input referred noise,
and very large electrical input dynamic range exce-
eding 65 dB. 10 kOhm or 80 dB-Ohms transimpedance
gain provides very good sensitivity at higher data rates.
The output of HMC799LP3E is internally matched to
50 ohms. External matching is not necessary. The
HMC799LP3E exhibits excellent gain and output
power stability over temperature, while requiring a
minimal number of external bias components.
Parameter Conditions Min. Typ. Max. Units
DC Specications
Power Supply Voltage 4.5 5 5.5 V
Power Supply Current Vcc = 5V 60 70 80 mA
Input Impedance @ 350 MHz 175 Ohm
Input Bias Voltage 2.1 V
AC Specications
Transimpedance @ 100 MHz, RL = 50 Ohm 7.5 10 12.5 k Ohms
Transimpedance 3-dB Bandwidth 600 700 MHz
Small Signal Gain S21 42 dB
Input Referred Current Noise Density
Cpd [1] <1pF, @ 200 MHz 4.6 pA / √Hz
Cpd [1] = 1pF, @ 200 MHz 4.8 pA / √Hz
Cpd [1] = 2pF, @ 200 MHz 5.2 pA / √Hz
Cpd [1] = 3pF, @ 200 MHz 5.6 pA / √Hz
[1] Cpd is the total parasitic capacitance value arises from addition of input photo diode. This value includes photo diode parasitic capacitance,
PCB trace capacitance and package parasitic capacitance.
Typical Applications Features
General Description
DC - 700 MHz, 10 kOhm
TRANSIMPEDANCE AMPLIFIER
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
TRANSIMPEDANCE AMPS - SMT
11
11 - 2
HMC799LP3E
v01.1009
DC - 700 MHz, 10 kOhm
TRANSIMPEDANCE AMPLIFIER
Parameter Conditions Min. Typ. Max. Units
Input Referred RMS Current Noise
Cpd [1] <1pF, @ 700 MHz BW 149 nA RMS
Cpd [1] = 1pF, @630 MHz BW 164 nA RMS
Cpd [1] = 2pF, @ 560 MHz BW 174 nA RMS
Cpd [1] = 3pF, @ 420 MHz BW 132 nA RMS
Saturated Output Swing Vin = 50mV p-p 1 Vp-p
Output Power 1-dB Compression OP1dB @ 200 MHz 4 dBm
Output Third Order Intercept Point OIP3 @ 200 MHz 13 dBm
Input Overdrive Current 20 mA
Output Return Loss @ 500 MHz 16 20 dB
Electrical Specications (Conditions)
Gain vs. Temperature Output Return Loss vs. Temperature
0
10
20
30
40
50
0 100 200 300 400 500 600 700 800
+25C
+85C
-40C
FREQUENCY (MHz)
GAIN (dB)
-50
-40
-30
-20
-10
0
0 100 200 300 400 500 600 700 800
+25C
+85C
-40C
FREQUENCY (MHz)
RETURN LOSS (dB)
Input Referred Noise Density vs. CPD [1]
Input Referred Noise Density vs.
Temperature [2]
[1] Cpd is the total parasitic capacitance value resulting from the addition of the input photo diode. This value includes photo diode parasitic
capacitance, PCB trace capacitance and package parasitic capacitance.
[2] Cpd = 1 pF
0
5
10
15
20
0 100 200 300 400 500 600 700 800
+25C
+85C
-40C
FREQUENCY (MHz)
INPUT REFERRED NOISE DENSITY (pA/ Hz)
0
5
10
15
20
0 100 200 300 400 500 600 700 800
Cpd=0pF
Cpd=1pF
Cpd=2pF
Cpd=3pF
FREQUENCY (MHz)
INPUT REFERRED NOISE DENSITY (pA/ Hz)
√
√
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
TRANSIMPEDANCE AMPS - SMT
11
11 - 3
Transimpedance vs. CPD [1]
Transimpedance vs.
Supply Voltage (Vcc) [2]
Transimpedance vs. Temperature [2]
Output Power vs.
Input Power @ 200 MHz [2]
[1] Cpd is the total parasitic capacitance value resulting from the addition of the input photo diode. This value includes photo diode parasitic
capacitance, PCB trace capacitance and package parasitic capacitance.
[2] Cpd = 1 pF
HMC799LP3E
v01.1009
DC - 700 MHz, 10 kOhm
TRANSIMPEDANCE AMPLIFIER
0
5
10
15
20
0 100 200 300 400 500 600 700 800
Cpd=0pF
Cpd=1pF
Cpd=2pF
Cpd=3pF
FREQUENCY (MHz)
TRANSIMPEDANCE (kOhm)
0
5
10
15
20
0 100 200 300 400 500 600 700 800
+25C
+85C
-40C
FREQUENCY (MHz)
TRANSIMPEDANCE (kOhm)
-10
-5
0
5
10
-50 -40 -30 -20 -10 0 10
INPUT POWER (dBm)
OUTPUT POWER (dBm)
0
5
10
15
20
0 100 200 300 400 500 600 700 800
Vcc=4.5V
Vcc=5.0V
Vcc=5.5V
FREQUENCY (MHz)
TRANSIMPEDANCE (kOhm)
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
TRANSIMPEDANCE AMPS - SMT
11
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HMC799LP3E
v01.1009
DC - 700 MHz, 10 kOhm
TRANSIMPEDANCE AMPLIFIER
Output Signal [2]
Output Signal [1]
Measurements
Current Mean std dev Min. Max Units
V amptd 959.62 960.47 3.703 953.11 972.63 mV
Frequency 200.1 200.0 0.117 199.5 200.4 MHz
Duty Cycle 49.1 49 0.08 48.7 49.2 %
[2] Input signal current 20 mAp-p, frequency 200 MHz
Measurements
Current Mean std dev Min. Max Units
V amptd 198.84 200.50 3.6253 184.99 212.70 mV
Frequency 200.8 199.9 0.631 198.0 202.1 MHz
Duty Cycle 50.9 49.7 0.62 47.6 51.6 %
[1] Input signal current 25 µAp-p, frequency 200 MHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
TRANSIMPEDANCE AMPS - SMT
11
11 - 5
HMC799LP3E
v01.1009
DC - 700 MHz, 10 kOhm
TRANSIMPEDANCE AMPLIFIER
Power Supply Voltage
(Vcc1, Vcc2, Vcc3) -1V to 8V
Input Current 30 mAp-p
Junction Temperature 125 °C
Continuous Pdiss (T=85 °C)
(derate 31.82 mW/ °C Above +85 °C 1.27W
Thermal Resistance
(Junction to ground paddle) 31.43 °C/W
Storage Temperature -65 to 125 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1C
Absolute Maximum Ratings
Outline Drawing
Part Number Package Body Material Lead Finish MSL Rating Package Marking [1]
HMC799LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H799
XXXX
[1] 4-Digit lot number XXXX
[2] Max peak reow temperature of 260 °C
Package Information
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS].
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE
MUST BE SOLDERED TO PCB RF GROUND.
7. REFER TO HMC APPLICATION NOTE FOR SUGGESTED
PCB LAND PATTERN.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
TRANSIMPEDANCE AMPS - SMT
11
11 - 6
HMC799LP3E
v01.1009
DC - 700 MHz, 10 kOhm
TRANSIMPEDANCE AMPLIFIER
Pin Number Function Description Interface Schematic
1, 12, 14 VCC1, VCC2,
VCC3 Positive Supply
2 CFILT Overload current lter capacitance pin.
3 RFIN RF Input
4 CEXT Reference voltage lter capacitance pin.
5 - 9, 11,
13, 15, 16 N/C Not connected.
10 RFOUT RF Output
Package
Base GND Package base has exposed metal ground
paddle which must be connected to ground.
Pin Descriptions
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
TRANSIMPEDANCE AMPS - SMT
11
11 - 7
HMC799LP3E
v01.1009
DC - 700 MHz, 10 kOhm
TRANSIMPEDANCE AMPLIFIER
Application Circuit
Note:
For power supply rejection ratio (PSRR) tests, install 0 Ohm for R1.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
TRANSIMPEDANCE AMPS - SMT
11
11 - 8
HMC799LP3E
v01.1009
DC - 700 MHz, 10 kOhm
TRANSIMPEDANCE AMPLIFIER
Evaluation PCB
The circuit board used in the nal application
should use RF circuit design techniques. Signal
lines should have 50 ohm impedance while the
package ground leads and exposed paddle should
be connected directly to the ground plane similar
to that shown. A sufficient number of via holes
should be used to connect the top and bottom
ground planes. The evaluation circuit board shown
is available from Hittite upon request.
List of Materials for Evaluation PCB 124022 [1]
Item Description
J1 - J2 PCB Mount SMA Connector
J3, J5 DC Pin
C1 - C3 22 nF Capacitor, 0402 Pkg.
C4, C12 10 µF Capacitor, 0805 Pkg.
C6, C8, C10 4.7 µF Capacitor, 0805 Pkg.
C7, C9, C11 0.1 µF Capacitor, 0603 Pkg.
U1 HMC799LP3E Transimpedance Amplier
PCB [2] 124020 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Arlon 25FR or Rogers 4350
