LOW_PHASE_SHIFT

Published:2009/6/30 22:19:00 Author:May | From:SeekIC

Voltage-control led amplifier has less than 3°phase shift over gaincontrol range of 40 dB at frequencies up to 10 MHz, as required for AGO circuits. Current generator Q2 controls gain of wideband resistance-coupled amplifier Q1. Gain of al increases lineady with amplitude of positive control voltage on base of Q2.-A. H. Hargrove, Simple Circuits Control Phase-Shift, EDNMagazine, Jan, 1, 1971, p 39.



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