Features
+3.3V or +5.0 V single power supply
transimpedance 600
(50
load)
Typical 2200 MHz broad bandwidth
16 dB high gain
Over 20 dB wide dynamic range
Differential output
Excellent equivalent input noise current
of 9 pA/
Hz
Applications
G bit Ethernet (1.25 Gb/s)
Preamplifier of an optical receiver circuit for fiber channel (1.0625 Gb/s)
Functional Description
The F0100404B is a stable GaAs integrated transimpedance amplifier capable of 16 dB
gain at a typical 1900 MHz 3 dB-cutoff-frequency, making it ideally suited for an optical
receiver circuit for a Gbit Ethernet (1.25 Gb/s), instrumentation, and measurement applica-
tions. The integrated feedback loop design provides broad bandwidth and stable operation.
The F0100404B typically specifies a high transimpedance of 600
(RL=50
) with a wide
dynamic range of over 20 dB. Furthermore, it can operate with a supply voltage of single
+3.3V or +5.0 V. It features a typical dissipation current of 43 mA.
Only chip-shipment is available for all product lineups of GaAs transimpedance amplifi-
ers, because the packaged preamplifier can not operate with the maximum performance
owing to parasitic capacitance of the package.
02.08.06
Transimpedance Amplifier
3.3V/5V 1.25 Gb/s Receiver
F0100404B
1.25Gb/s Transimpedance Amplifier
F0100404B
Absolute Maximum Ratings
T
a
=25
C, unless specified
Recommended Operating Conditions
T
a
=25
C, V
SS
=GND, unless specified
Electrical Characteristics
T
a
=25
C, V
DD
=3.3V, V
SS
=GND, unless specified
*1 Defined at OUT and OUT
*2 ZTP,N=
2
RI+50
10
20
S21P,N
*3 Voltage of VDD3.3 pad when supplied the voltage(4.50~5.25 V) to VDD5.0 pad
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V
F0100404B
1.25Gb/s Transimpedance Amplifier
Test Circuits
1) AC Characteristics
2) Sensitivity Characteristics
50
50
50
Network Analyzer
Prober
OUT
OUT
VDD
VSS
IN
DUT
Switch
Pin=-50 dBm
f=300 kHz~3 GHz
E/O
Converter
Optical
Attenuater
Bit Error
Rate Tester
PD
Pulse
Pattern
Generator
Comparator
SEI
F0311018S
V
PD
V
CC
5V
5V
CLK
0.022
F
0.022
F
0.022
F
DUT
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