Switched capacitor transresistance amplifier

Details Switched capacitor transresistance amplifier Switched capacitor transresistance amplifier

1983-06-20

1986-01-28

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

330 9, H01J 4014

Patent

active

045673632

ABSTRACT:
A transresistance amplifier particularly adapted for use in a radiation detection system. The amplifier includes a feedback gain stage with a switched capacitor load. The amplifier is arranged to provide an average detector voltage approximating zero thus substantially reducing detector noise and also providing a low equivalent input impedance for increasing injection efficiency. A switched capacitor output load is also provided which allows the total transresistance to be determined by simply selecting an appropriate capacitance value.

REFERENCES:
patent: 3801933 (1974-04-01), Teare
patent: 3836862 (1974-09-01), Seely et al.
patent: 3988689 (1976-10-01), Ochi et al.
patent: 4068182 (1978-01-01), Dingwall et al.
patent: 4100407 (1978-07-01), Takahshi
patent: 4255715 (1981-03-01), Cooperman

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