Features
Low voltage of +3.3 V single power supply
6.5 k
high transimpedance
Typical 320 MHz broad bandwidth
27 dB high gain
0 dBm large optical input
Over 30 dB wide dynamic range
Differential output
Applications
Preamplifier of an optical receiver circuit for
OC-12/STM-4 (622 Mb/s)
Functional Description
The F0100208B is a stable GaAs integrated transimpedance amplifier capable of 27 dB
gain at a typical 320 MHz 3 dB-cutoff-frequency, making it ideally suited for a 622 Mb/s
optical receiver circuit, for example, OC-12/STM-4, instrumentation, and measurement ap-
plications. The integrated feedback loop design provides broad bandwidth and stable opera-
tion. The F0100208B typically specifies a high transimpedance of 6.5 k
(Rs=RL=50
) with
a wide dynamic range of over 30 dB. It also provides a large optical input overload of more
than 0 dBm. Furthermore, it can operate with a low supply voltage of single +3.3 V. It features
a typical dissipation current of 25 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.
01.08.28
Transimpedance Amplifier
F0100208B
3.3 V / 622 Mb/s Receiver
3.3 V / 622 Mb/s Transimpedance Amplifier
F0100208B
Absolute Maximum Ratings
T
a
=25
C , unless specified
Recommended Operating Conditions
T
a
=25
C , V
DD
=+3.3 V, V
SS
=GND, unless specified
Electrical Characteristics
T
a
=25
C , V
DD
=3.3 V, V
SS
=GND, unless specified
*1 ZTP,N=
(R1+50)
2
10
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F0100208B
3.3 V / 622 Mb/s Transimpedance Amplifier
Test Circuits
1) AC Characteristics
2) Sensitivity Characteristics
E/O
Converter
Optical
Attenuater
Bit Error
Rate Tester
PD
Pulse
Pattern
Generator
Comparator
SEI
F0300232Q
V
PD
V
CC
5V
5V
CLK
0.022
F
0.022
F
0.022
F
DUT
50
50
50
Network Analyzer
Prober
OUT
OUT
VDD
VSS
IN
DUT
Switch
Pin=-50 dBm
f=300 kHz~3 GHz
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