80_VRMS_ANALOG_SWITCH

Published:2009/7/14 1:07:00 Author:May | From:SeekIC

Developed for switching high-level analog signals with speed, accuracy, and reliability, for such applications as digital-to-synchro converters. Feedback net-work stabilizes output against changes in circuit parameters. For AC signal inputs between±10 V, -12 VDC on gate of FET blocks input channel and R2 grounds inverting input of opamp A1 to prevent noise pickup and minimize voltage offset. Grounding gate of FET turns on input channel；input signal is then amplified by A1 and fed to unity-gain power opamp A2.-D.J. Musto, Analog Switch and IC Amp Controls 80V RMS, EDN Magazine, Feb 20, 1973, p 91-92.



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