I want to build a circuit like the one below. There is an analog output of transimpedance amplifier. The amplitude of signal is between 0-3.3V, and the pulse width 10 ns. I want to use this analog signal on ADC and comparator input. My goal is to get the maximum value of the analog signal.
This is my simulation result. The green signal is analog voltage and the blue signal is comparator output.
How can i read the maximum value of analog signal with using comparator output? Is sample and hold ADC(AD7276) appropriate for this operation?
Does AD7276 captures input data value at falling edge of the CS or it take the value stored in input hold capacitor? According to my simulation, the analog data is about 0 volt at falling edge of the CS. So i am always going to get zero. How can i solve this problem?
Thanks for helps.
[edited by: @skowalik at 3:00 PM (GMT 0) on 10 Jan 2020]