Nanosecond pulse integrating circuit composed of broadband transconductance operational amplifier buffer OPA660

Published:2012/8/15 1:46:00 Author:Ecco | Keyword: Nanosecond , pulse , integrating circuit , broadband transconductance , operational amplifier, buffer | From:SeekIC

The input signal VI is added to the pin 3 of OPA660 by 780Ω base resistor and 50Ω matched resistor, then it will be output by pin 6 after being amplified by internal OTA and +1 amplifier. At the same time, pin 6 get feedback to pin 2 of OPA660 by integral circuit composed of the 820Ω resistor, 1μF capacitor, therefore to constitute a nanosecond pulse integrating circuit. Potentiometer can adjust the DC voltage of pin 2 to play a role in controlling the starting point of the integrator voltage.



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