Analog Frequency to Voltage Converter, 125 MHz BW, 20 dB SNR

Discussion in 'General Electronics Chat' started by G4nd41f, Feb 23, 2012.

  1. G4nd41f

    Thread Starter New Member

    Feb 23, 2012
    I have got an AC signal with a frequency of up to 125 MHz. The signal is generated by a beat on a photodiode and has a SNR of about 20dB. The width is about 8 MHz. I would like to convert this signal to voltage in order to sample it with a DAQ card with up to 250 kS/s. The frequency is changing quite fast, with about 10 GHz/s, so I think that an analog circut should be necessary. Is there any possibility to do that?

    Thanks a lot in advance!