Method for erasing a common mode current signal and transconduct

Details Method for erasing a common mode current signal and transconduct Method for erasing a common mode current signal and transconduct

1995-05-31

1997-12-09

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 66, H03K 522

Patent

active

056964579

ABSTRACT:
A low-voltage transconductor circuit in which the common mode gain of a first transconductor stage is compensated by a second transconductor stage (connected in parallel with the first transconductor stage) which has no differential mode transconductance, and which is connected so that its common mode transconductance offsets the common mode transconductance of the stage. This greatly reduces the common mode current signal at the output, while avoiding the necessity for a current sink at the source of the input transistors.

REFERENCES:
patent: 4213098 (1980-07-01), Tsividis
patent: 4267517 (1981-05-01), Iida et al.
patent: 4618833 (1986-10-01), Russell
patent: 4874969 (1989-10-01), Meadows
patent: 4901031 (1990-02-01), Kalthoff et al.
patent: 5032797 (1991-07-01), Mijuskovic
patent: 5371474 (1994-12-01), Wassenaar et al.

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