AN897 Datasheet (Microchip) - Thermistor Temperature Sensing

AN897, Thermistor Temperature Sensing

AN897 Thermistor Temperature Sensing with MCP6SX2 PGAs Thermistor Resistance (:) Thermistor Error Magnitude (°C) Author: Kumen Blake and Steven Bible Microchip Technology Inc.

INTRODUCTION This application note shows two designs that use a precise, negative temperature coefficient (NTC) thermistor for temperature measurement.

The thermistor is placed in a resistive divider to linearize the temperature-to-voltage conversion.

The voltage is processed in the analog domain by the MCP6SX2 (MCP6S22