Chopper stabilized operational transconductance amplifier

Details Chopper stabilized operational transconductance amplifier Chopper stabilized operational transconductance amplifier

1994-10-07

1996-01-23

Mottola, Steven

Amplifiers

With periodic switching input-output

330 51, H03F 102, H03F 114

Patent

active

054867886

ABSTRACT:
A chopper stabilized current amplifier circuit is disclosed. The current amplifier circuit includes a main operational transconductance amplifier, a nulling transconductance amplifier, two capacitors, four switches, and a timing control circuit. The timing control circuit uses analog inverters to decrease the slew rate of the switching of the switches to decrease the noise in the system.

REFERENCES:
patent: 5047727 (1991-09-01), Theus
Michael C. W. Coln, "Chopper Stabilization of MOS Operational Amplifiers Using Feed-Forward Techniques", IEEE Journal of Solid-State Circuits, 1981, V. SC-16, No. 6, pp. 745-747.

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