Precision CMOS comparator with hysteresis

Details Precision CMOS comparator with hysteresis Precision CMOS comparator with hysteresis

1989-01-19

1990-07-10

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307362, 307363, H03K 524

Patent

active

049409077

ABSTRACT:
A CMOS comparator has programmable hysteresis using a differential pair of MOS transistors, a current mirror pair of transistors and a feedback path which is function of comparator output, MOSFET threshold voltage and digitally selectable inputs. The comparator has characteristics suitable for sensing and processing low level signals from a variable reluctance sensor in an electrically noisy environment.

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patent: 4733107 (1988-03-01), O'Shaughnessy et al.
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