Wideband single-ended voltage-to-current converter and gain-cont

Details Wideband single-ended voltage-to-current converter and gain-cont Wideband single-ended voltage-to-current converter and gain-cont

1989-02-28

1992-04-21

Mullins, James B.

Amplifiers

Plural signal inputs

330256, 330261, 330289, 358184, H03F 368

Patent

active

051072246

ABSTRACT:
In accordance with the teachings of this invention, a novel wide-band, DC coupled, single-ended voltage-to-current converter and gain control circuit is provided. Of importance, the circuit of this invention is designed to receive an input signal referenced to ground such that for zero input current, zero output current is provided. A replica bias circuit is used which allows the output signal to be a function of the input signal without offsets introduced by bias currents used throughout the circuit.

REFERENCES:
patent: 4041409 (1977-08-01), Kominami et al.
patent: 4050030 (1977-09-01), Russell
Schwarz, "Offset Compensation Circuit", IBM Technical Disclosure Bulletin, vol. 19, No. 9, Feb. 1977, pp. 3584, 3585.

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