OPERATIONAL_AMPLIFIER_CONTROL

Published:2009/7/24 3:55:00 Author:Jessie | From:SeekIC

Switch must pass 1 ma in either direction (A to B or B to A). Diode pairs D1-D2 and D3-D4 are voltage limiters, while Q1 is basic switching element. Switching time is about 2 microsec.Used as sample-and-hold circuit, with 500-microsec sampling interval-R. W. Maloy, Transistor Switch Passes Current Both Ways, Electronics, 38:1, p 79.



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