Transimpedance Amplifier, 2.5 Gb/s
CGY2102UH/C2
Rev. V1
Features
Block Diagram
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Suitable for 2.5 Gb/s Optical Fiber Links
Single Supply Voltage: +3.3 V to +5.0 V
Differential Transimpedance Gain: 70 dBW
Sensitivity: -27.5 dBm @ BER of 10-10
Built in AGC Function
Differential Output
Peak-to-Peak Input Overload Current: 2.5 mA
Consumption Current: 45 mA @ +3.3 V
Tested, Inspected Known Good Die (KGD)
Samples Available
Demonstration Boards Available
Space and MIL-STD also Available
RoHS* Compliant
Applications
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Digital Optical STM-16 or OC-48 Transmission
Systems
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PIN or APD Preamplifier Receivers
GPON Optical Network Unit (ONU)
Description
The CGY2102UH/C2 is a high performance 2.5 Gb/s
transimpedance amplifier (TIA). Typical use is as a
low noise preamplifier for lightwave receiver
modules in optical fiber networks. The TIA gives an
exceptionally good sensitivity and high gain. The
device is intended to be used with a PIN or APD
photodetector. There is a built in AGC function which
limits the peak-to-peak output voltage and protects
the device from optical input overload. The
CGY2102UH/C2 can be assembled in a small form
factor packages, such as TO-46 headers.
Ordering Information
Part Number
Package
2.5 Gb/s transimpedance
amplifier
CGY2102UH/C2
The die is manufactured using the 0.18 μm gate
length pHEMT technology. The MMIC uses gold
bond pads and backside metallization and is fully
protected with silicon nitride passivation to obtain the
highest level of reliability. This technology has been
evaluated for Space applications and is on the
European Preferred Parts List of the European
Space Agency.
* Restrictions on Hazardous Substances, compliant to current RoHS EU directive.
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