we designed a LIDAR circuit and we use OPA657 as a TIA. When the transmitter signals received by TIA, there are some spikes on it. How can solve this situation? I will send circuit diagram and output wave shape soon.
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This can have very many reasons. Do you use a cable to transmit the signal from the TIA to the receiver? In this case cable termination is essential. Or by other words, you should have resistors at both ends of the cable which exactly equal the cable impedance. You also need a high performance HF cable.