Differential amplifier with current steering to enhance slew rat

Details Differential amplifier with current steering to enhance slew rat Differential amplifier with current steering to enhance slew rat

1985-09-03

1986-10-07

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330147, 330295, H03F 345

Patent

active

046161902

ABSTRACT:
A steering circuit (10) in a differential amplifier having a pair of differentially arranged input amplifiers (A1 and A2) steers current from a pair of current sources (11 and 12) in such a way as to enhance slew rate without increasing offset voltage. The steering circuit is formed with a pair of steering amplifiers (A3 and A4) arranged in a differential configuration through a pair of resistors (R3 and R4).

REFERENCES:
patent: 3452289 (1969-06-01), Ryan
patent: 3668538 (1972-06-01), Hearn
patent: 4002993 (1977-01-01), van de Plassche
patent: 4075575 (1978-02-01), Robe
Gray et al, Analysis and Design of Analog Integrated Circuits, (John Wiley & Sons: 1977), pp. 158-162, 217-221, 541-549.
Seevinck et al, "Universal Adaptive Biasing Principle for Micropower Applications", Dig. Tech. Paps., European Solid-State Circs. Conf., Sep. 1984, pp. 59-62.
".mu.A4136 Quad Operational Amplifiers," 1982 Linear Division Products, Data Book, Fairchild Cam. and Instr. Corp., p. 4-174.

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