We want to use ADN2880 in laser communication system at data rate 155 Mbps (STM-1). Will it support this low data rate or there is any minimum data rate limit?
ADN2880 is an excellent TIA to support a slow data rate signal, such as 155Mbps.
However, due to its intrinsic input current referred noise and the fixed wide bandwidth,
its input sensitivity could be limited to -24dBm, no matter how slow the input signal rate
you want to support with ADN2880.
If you just want to support a data rate to 155.52Mbps telecomm link, AD8015, a 5V TIA, might be another
TIA option, which could support -36dBm sensitivity at the rate.
Hope theses are what you need.
Thanks Donffenz Zhao for quick response. We are using AD8015 in existing design, but need RSSI signal for alignment purpose. Therefore replacing AD8015 with ADN2880. Thanks once again.
You may use one KHz range, amplitude adjustable input signal to PD + AD8015, measure one single ended output amplitude to help the optical alignment. Of course, you might need special training to low pay operator to monitor the alignment in production.
Retrieving data ...