Read-out circuit for infrared detectors

Details Read-out circuit for infrared detectors Read-out circuit for infrared detectors

2006-12-12

2006-12-12

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S337000, C327S087000

Reexamination Certificate

active

07148727

ABSTRACT:
The present invention is related to a device comprising a capacitive feedback transimpedance operational amplifier, that comprises a main operational amplifier (with a first input, a second input and an output) and an integrating capacitor, connected between the second input and the output, and a first switch connected in parallel to the integrating capacitor. The device further comprises an auto-zero operational amplifier having a third input and a fourth input, whereby to the third input and the first input signals at virtual ground potential are applied. The fourth input is connected to the output by a circuit comprising two offset error capacitors, a second switch and a third switch.

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patent: 2004/0149910 (2004-08-01), Hatatani et al.
patent: 0 389 969 (1990-10-01), None
Caiulo et al., “Design of High-Accuracy Video Comparator,” 1994 IEEE International Symposium on Circuits and Systems, London, UK.

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