Title :
A temperature sensor with single resistor set-point programming
Author_Institution :
Analog Devices Inc., Wilmington, MA, USA
fDate :
12/1/1996 12:00:00 AM
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;
Journal_Title :
Solid-State Circuits, IEEE Journal of
