Switched capacitor circuit with high power supply projection rat

Details Switched capacitor circuit with high power supply projection rat Switched capacitor circuit with high power supply projection rat

1983-04-22

1986-11-11

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307496, 307497, 307297, 307520, 307200B, 330261, G05F 500

Patent

active

046224807

ABSTRACT:
In a switched capacitor circuit, in order to eliminate leakage of a power supply noise component to a signal line through an input capacitance of an operation amplifier, (1) an operating current of at least a first, differential stage among stages of the operational amplifier is regulated by a current regulation bias circuit, and (2) a power supply noise component having the same phase as that of an input signal is applied to the gate of a transistor of a gain stage, thereby stabilizing the operating point. In order to eliminate leakage of the power supply noise component to the signal line through a parasitic capacitance of an analog switch, (3) a dummy switch is used to detect a signal corresponding to the leakage component of the power supply noise component to the signal line, and an inverted signal having the opposite phase to that of the signal corresponding to the leakage component is applied to a substrate of the analog switch, thereby cancelling the actual leakage component.

REFERENCES:
patent: 4267517 (1981-05-01), Iida et al.
patent: 4300061 (1981-11-01), Mihalich et al.
patent: 4361797 (1982-11-01), Kojima et al.
patent: 4379267 (1983-04-01), Young
patent: 4477737 (1984-10-01), Ulmer et al.
patent: 4479093 (1984-10-01), Mattisson
patent: 4484089 (1984-11-01), Viswanathan
patent: 4518880 (1985-05-01), Masuda et al.

Affiliated with

Also associated with

Rating

Switched capacitor circuit with high power supply projection rat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switched capacitor circuit with high power supply projection rat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switched capacitor circuit with high power supply projection rat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-378541