资 源 简 介
Microchip Technology Inc.’s MCP9800/1/2/3 family ofdigital temperature sensors converts temperaturesbetween -55°C and +125°C to a digital word. Theyprovide an accuracy of ±1°C (max.) from -10°C to+85°C.The MCP9800/1/2/3 family comes with user-programmableregisters that provide flexibility for temperaturesensing applicaTIons. The register setTIngs allow userselectable9-bit to 12-bit temperature measurementresoluTIon, configuraTIon of the power-saving Shutdownand One-shot (single conversion on command while inthe Shutdown) modes and the specification of bothtemperature alert output and hysteresis limits. Whenthe temperature changes beyond the specified limits,the MCP9800/1/2/3 outputs an alert signal. The userhas the option of setting the alert output signal polarityas an active-low or active-high comparator output forthermostat operation, or as temperature event interruptoutput for microprocessor-based systems.This sensor has an industry standard 2-wire, I2C™/SMBus compatible serial interface, allowing up to eightdevices to be controlled in a single serial bus. These featuresmake the MCP9800/1/2/3 ideal for sophisticatedmulti-zone temperature-monitoring applications.
