A temperature sensor with single resistor set-point programming

Author

Brokaw, A. Paul

Author_Institution

Analog Devices Inc., Wilmington, MA, USA

Volume

31

Issue

12

fYear

1996

fDate

12/1/1996 12:00:00 AM

Firstpage

1908

Lastpage

1915

Abstract

An integrated circuit set point temperature controller has an open collector output which switches low at a temperature determined by an external resistor. The programming resistor may be determined from a universal formula relating resistance to desired trip temperature. The circuit is laser trimmed at a single temperature in manufacture to conform with the formula to better than 1°C over a range between -40°C and 150°C. The circuit is low cost and includes temperature hysteresis, for well defined switching, and an optional output pull-up resistor

Keywords

bipolar integrated circuits; electric sensing devices; hysteresis; programmed control; temperature control; temperature measurement; temperature sensors; -40 to 150 C; integrated circuit temperature controller; laser trimmed circuit; open collector output; output pull-up resistor; set point temperature controller; single resistor set-point programming; switching; temperature hysteresis; temperature sensor; Costs; Photonic band gap; Resistors; Switches; Switching circuits; Temperature control; Temperature distribution; Temperature measurement; Temperature sensors; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.545812

Filename

545812