High-precision amplification circuit of small size and low power

Details High-precision amplification circuit of small size and low power High-precision amplification circuit of small size and low power

1988-03-30

1989-07-18

Wan, Gene

Amplifiers

With periodic switching input-output

330 51, 330 69, 328151, H03F 345

Patent

active

048497070

ABSTRACT:
The amplification circuit comprises an operational amplifier and two groups of capacitances in input and feedback association with the operational amplifier. 2-phase switching means are periodically switched between a position in which two other capacitance groups are charged at output voltage values equal but opposite in sign and a position in which said other capacitances cancel each other out.

REFERENCES:
patent: 4609877 (1986-09-01), Nicollini

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