Circuit with ratiometric analog inputs

Details Circuit with ratiometric analog inputs Circuit with ratiometric analog inputs

1991-08-27

1992-09-08

Wong, Peter S.

Electricity: power supply or regulation systems

Including an impedance

In a bridge

323354, 323365, G01L 118, G01R 1710

Patent

active

051461544

ABSTRACT:
A circuit disclosed maintains ratiometric analog inputs to an integrated circuit using a network of resistors, some of which are external to the integrated circuit and some of which are internal to the integrated circuit, reducing expense. The analog inputs maintain a fixed ratio during fluctuations in supply voltage and fluctuations in temperature.

REFERENCES:
patent: 3439258 (1969-04-01), Van Leeuwen
patent: 3568044 (1971-03-01), Elazar
patent: 3651696 (1972-03-01), Rose
patent: 4171509 (1979-10-01), Stephens et al.
patent: 4250750 (1981-02-01), Martinec et al.
patent: 4516865 (1985-05-01), Hideo
patent: 4614114 (1986-09-01), Matsumoto et al.
patent: 4635043 (1987-01-01), Kronenberg et al.
patent: 4639611 (1987-01-01), Sticher
patent: 4760736 (1988-08-01), Huynh
patent: 4768377 (1988-09-01), Habelmann et al.

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