OPTIMIZING_CMR

Published:2009/7/2 8:26:00 Author:May | From:SeekIC

Article covers procedures for optimizing common-mode rejection when opamp is used to drive digital voltmeter. Value of Rv is determined by using resistance box connected between negative supply and pin 1 or 5 while other pin is shorted to negative supply, choosing pin which gives voltage swing in right direction on meter, then adiusting resistance box for zero output. Resistance box is similarly used at dR5 and dRf locations.-R. J. lsaacs, Optimizing OpAmps. Wireless World. April 1973. p 185-186.



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