Temperature sensor

Details Temperature sensor Temperature sensor

1996-12-23

1998-11-03

Bennett, G. Bradley

Thermal measuring and testing

Temperature measurement

By electrical or magnetic heat sensor

G01K 700

Patent

active

058298797

ABSTRACT:
A temperature sensor (1800) incorporates two diodes (1802, 1804). The voltage difference across each diode is a linear function of temperature. The voltage difference between the two diodes is also a function of the ratio of their respective sizes. These relationships can be used to build a sensor that is inexpensive, reliable, and whose process variance is predictable.

REFERENCES:
patent: 3679992 (1972-07-01), Yerman
patent: 3719797 (1973-03-01), Andrews, Jr. et al.
patent: 3791217 (1974-02-01), Stout et al.
patent: 4730228 (1988-03-01), Einzinger et al.
patent: 4875131 (1989-10-01), Leipold et al.
patent: 5451892 (1995-09-01), Bailey
patent: 5487127 (1996-01-01), Bertoluzzi et al.
"Micropower CMOS Temperature Sensor with Digital Output," Anton Bakker and Johan H. Juijsing, IEEE Journal of Solid-State Circuits, vol. 32, No. 7, Jul. 1996, pp. 933-937.

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