CMOS comparator bias voltage generator

Details CMOS comparator bias voltage generator CMOS comparator bias voltage generator

1988-12-20

1989-08-22

Beha, Jr., William H.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

323314, 330253, 330261, G05F 324

Patent

active

048599280

ABSTRACT:
An apparatus for generating a CMOS comparator bias voltage for a CMOS comparator includes a dummy comparator having a negative input and a positive input coupled together to receive a common mode reference voltage corresponding to the common mode input voltage of the CMOS comparator. The dummy comparator also includes a bias input and an output. The apparatus for generating a CMOS comparator bias voltage further includes a bias amplifier having a negative input coupled to the output of the dummy comparator, a positive input for receiving a threshold reference voltage corresponding to the input threshold of the next stage driven by the CMOS comparator, and an output coupled to the bias input of said dummy comparator to form a comparator bias voltage.

REFERENCES:
patent: 4524329 (1985-06-01), Abau

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