Switched capacitor filter utilizing a differential input and out

Details Switched capacitor filter utilizing a differential input and out Switched capacitor filter utilizing a differential input and out

1981-10-13

1986-03-04

LaRoche, Eugene R.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330 51, 330109, 330253, H03F 345

Patent

active

045742502

ABSTRACT:
The invention is a differential amplifier, having internal common mode feedback and correction between a first stage and a second stage of the differential amplifier, which is used as a switched capacitor integrator in a switch capacitor filter in combination with an encoder and decoder which is fully differential throughout the circuit.

REFERENCES:
patent: 3491307 (1970-01-01), Solomon et al.
patent: 3530395 (1970-09-01), Prusha
patent: 3845404 (1974-10-01), Trilling
patent: 4168440 (1979-09-01), Gray
Kuo-Chiang Hsieh and Paul R. Gray, "A Low-Noise Chopper Stabilized Differential Switched Capacitor Filtering Technique".

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