Differential voltage buffer amplifier circuit and serial-paralle

Details Differential voltage buffer amplifier circuit and serial-paralle Differential voltage buffer amplifier circuit and serial-paralle

1990-10-16

1992-08-11

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

330252, H03M 134

Patent

active

051383187

ABSTRACT:
An improved differential voltage buffer amplifier circuit of the type having a pair of transistors connected in emitter-follower configuration with an input differential voltage signal applied between the bases thereof and a load resistor connected between the emitters thereof, which further includes a compensation circuit for eliminating a voltage transfer error resulting from current flow through the load, for thereby achieving a voltage gain value that is very close to one. The buffer circuit is particularly advantageous for use in a new high-accuracy A-D converter which is suitable for integrated circuit implementation.

REFERENCES:
patent: 4635036 (1987-01-01), Yoshizawa
patent: 4745393 (1988-05-01), Tsukada et al.
patent: 4764753 (1988-08-01), Yukawa
patent: 4771266 (1988-09-01), Nunokawa
patent: 4851845 (1989-07-01), Hotta et al.
Patent abstracts of Japan, unexamined applications, E field, vol. 13, No. 88 (E-721), Feb. 28, 1989 The Patent Office Japanese Government p. 120 E 721.
Soviet Patents abstracts, E1 section, week 8909, 1989 Derwent Publications Ltd., London, U 21, p. 8.
Soviet Inventions Illustrated, E1 section, week 8814, May 18, 1988 Derwent Publication Ltd., London, U 21, pp. 21-22.
Soviet Inventions Illustrated, E1 section, week 8707, Apr. 1, 1987 Derwent Publications Ltd., London, U 21, p. 5.
Soviet Patent abstracts, E1 section, week 8947, 1990 Derwent Publications Ltd., London, U 21, p. 10.

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