Chopper type comparator

Details Chopper type comparator Chopper type comparator

2007-02-05

2008-10-21

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

By periodic switching

C327S068000, C327S070000, C327S077000, C327S090000

Reexamination Certificate

active

07439780

ABSTRACT:
A comparator includes: a CMOS inverter constituted by a combination of a first p-channel MOS transistor and a first n-channel MOS transistor; a second p-channel MOS transistor connected in parallel to the first p-channel MOS transistor in an analog input period, and disconnected from the first p-channel MOS transistor in a comparison period; and a second n-channel MOS transistor connected in parallel to the first n-channel MOS transistor in the analog input period, and disconnected from the first n-channel MOS transistor in the comparison period.

REFERENCES:
patent: 02111125 (1990-04-01), None
patent: 2005-057717 (2005-03-01), None

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