Transconductor stage

Details Transconductor stage Transconductor stage

1993-10-29

1996-02-27

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Nonlinear amplifying circuit

330252, G06G 712

Patent

active

054952018

ABSTRACT:
A transconductor stage for high-frequency filters operated on a low voltage supply, being of a type which comprises an input circuit portion having signal inputs, further comprises a pair of interconnected differential cells (2,3) being associated each with a corresponding signal input. Each cell incorporates at least one pair of bipolar transistors (Q1,Q2;Q3,Q4) having at least one corresponding terminal thereof (e.g. the emitter terminal) connected in common.

REFERENCES:
patent: 3633120 (1972-01-01), Battjes
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patent: 4369410 (1983-01-01), Fenk
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patent: 4806792 (1989-02-01), Simmons
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patent: 5107150 (1992-04-01), Kimura
patent: 5311088 (1994-05-01), Nelson
patent: 5315261 (1994-05-01), Kimura
patent: 5329189 (1994-07-01), Ushida et al.
patent: 5331289 (1994-07-01), Price
patent: 5332937 (1994-07-01), Castello et al.

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