'Overload' related articles 1

  1. 2009/02/24 ATA7609 - 10 Gb/s High Overload TIA
The ANADIGICS ATA7609 is a –5.2 V high-speed transimpedance amplifier (TIA) designed for 10 Gb/s optical receiver applications available in bare die form and manufactured using an InGaP based HBT process. The device is used in conjunction with a photodetector to convert an optical signal into a differential output voltage that can be AC or DC coupled to a post amplifier. The ATA7609 has an internal overload support circuit and can accept optical inputs as high as +3 dBm. With its low noise and high optical overload capability, the device is well suited for 10 Gb/s Ethernet and OC-192 Very Short-Reach (VSR), Short-Reach, Intermediate-Reach and Long-Reach optical receivers, transceivers and transponders. The ATA7609 is identical to the ATA7603 but with the output polarities reversed.

*1800 Ω Differential Transimpedance
*3 mApp Maximum Input Current
*14 pA/√Hz Input Noise Current Density
*Single –5.2 V Power Supply
*Low Group Delay
*Outputs DC or AC Coupled
*Same Functionality as ATA7603 with the Output Polarities Reversed

*SONET/SDH OC-192 /STM-64 VSR, Short-Reach, Intermediate-Reach, and Long-Reach Receivers
*10 Gb/s Ethernet
*Fiber optic receivers, transceivers, and transponders


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