High-speed multi-stage voltage comparator

Details High-speed multi-stage voltage comparator High-speed multi-stage voltage comparator

2011-07-12

2011-07-12

Lam, Tuan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S065000

Reexamination Certificate

active

07977979

ABSTRACT:
A high-speed multi-stage voltage comparator is provided. The multi-stage voltage comparator is configured to eliminate offset from outputs of preamplifiers through respective offset-cancellation switches, and to reset the outputs of the preamplifiers through respective reset switches to reduce an output recovery time. Thus, the multi-stage voltage comparator operates with high accuracy and at a high speed, so that it can be usefully applied to an analog-to-digital converter (ADC), and particularly, a high-speed successive approximation register ADC (SAR ADC).

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