Switched capacitor precision difference amplifier

Details Switched capacitor precision difference amplifier Switched capacitor precision difference amplifier

1985-06-10

1986-08-05

Mullins, James B.

Amplifiers

With periodic switching input-output

307353, 307356, 330 69, 330107, 330252, H03F 345

Patent

active

046045848

ABSTRACT:
A circuit which can selectively sample and hold two real time input voltages and provide an output voltage indicating the difference value of the input voltages is provided. A switched capacitor structure which provides no parasitic capacitance output error component when the two input voltages are substantially equal is used.

REFERENCES:
patent: 4028558 (1977-06-01), Heller et al.

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