trastikata
Member level 1
Pulse Peak Track Hold And Reset circuit
Hello,
I want to measure the peak value of short pulses (close to Gaussian form and about 0.5 - 1 usec duration) spaced at least 50 - 100 usec from each other.
I came up with the attached circuit where the first amplifier tracks the peak value and the second buffers the voltage. The comparator provides the track, hold for the duration of the rising and falling edge, and reset timing 5 usec after the falling edge goes to zero.
The MCU will trigger on the falling edge of the pulse and ADC needs about 2 usec to measure the value of the peak, which is provided by the comparator and then the peak is reset again by the comparator.
The simulation works in terms of functionality, obviously the OPAMPs will be different and chosen accordingly. But I don't have much experience in the analog part and I would like to ask for advises and suggestion if and how to improve my schematic.
EDIT:
The title should read "Reset" instead of "Reste" :smile:
Hello,
I want to measure the peak value of short pulses (close to Gaussian form and about 0.5 - 1 usec duration) spaced at least 50 - 100 usec from each other.
I came up with the attached circuit where the first amplifier tracks the peak value and the second buffers the voltage. The comparator provides the track, hold for the duration of the rising and falling edge, and reset timing 5 usec after the falling edge goes to zero.
The MCU will trigger on the falling edge of the pulse and ADC needs about 2 usec to measure the value of the peak, which is provided by the comparator and then the peak is reset again by the comparator.
The simulation works in terms of functionality, obviously the OPAMPs will be different and chosen accordingly. But I don't have much experience in the analog part and I would like to ask for advises and suggestion if and how to improve my schematic.
EDIT:
The title should read "Reset" instead of "Reste" :smile:
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