Transconductor circuit for compensating the distortion of...

Details Transconductor circuit for compensating the distortion of... Transconductor circuit for compensating the distortion of...

2006-05-02

2006-05-02

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S563000, C330S253000

Reexamination Certificate

active

07038501

ABSTRACT:
Provided is a transconductor circuit for compensating distortion of an output current without reducing the size of chips and operation speed characteristics. The transconductor circuit includes a main circuitry which is a differential pair with source degeneration and to which a predetermined input voltage is applied, an auxiliary circuitry which is connected to nodes of the main circuitry to compensate the distortion of the output current, a variable voltage supply which controls a depth or degree of a distortion compensation operation for the output current, and a current source which supplies the main circuitry with constant bias.

REFERENCES:
patent: 4720685 (1988-01-01), Garuts
patent: 5598117 (1997-01-01), Deguchi
patent: 5774020 (1998-06-01), Kimura
patent: 6242980 (2001-06-01), Tsukagoshi et al.
patent: 6577170 (2003-06-01), Prodanov
patent: 05-259761 (1993-10-01), None
patent: 1020020035324 (2002-05-01), None
“A Linear Fully Balanced CMOS OTA for VHF Filtering Applications”, IEEE Transactions on Circuits and Systems, vol. 44, No. 3, Mar. 1997, pp. 174-317.

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