Title: High performance differential amplifier

Abstract: A differential amplifier having very high common mode rejection is shown. In its simple form four transistors and three constant current sources are connected into a balanced configuration. Balance is automatic so that special component selection is not required.

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Other info:

Inventors: Buhler, Frederick T. (Newark, CA, US)

Application Number: 541937
Filing Date: 1975-01-17
Publication_date: 1976-02-10
Assignee: Aeronutronic Ford Corporation (formerly Philco-Ford Corporation) (Blue Bell, PA)
Primary Class(es): 330/258 330/69, 330/261
Other Classes:
US Patent Ref:

3894290	Dec, 1974	Schoeff	330/22.
R27351	May, 1972	McGraw et al.	330/30.

Other Refs:
Primary Examiner: Rolinec, R. V.
Assistant Examiner: Dahl, Lawrence J.
Attorney: Sanborn; Robert D.