MCP9800 2-Wire High-Accuracy Temperature Sensor

Microchip's MCP9800 converts temperatures between -55°C and +125°C to a digital word

MCP9800 2-Wire High-Accuracy Temperature SensorMicrochip's MCP9800 is a digital temperature sensor capable of reading temperatures from -55°C to +125°C. Temperature data is measured from an integrated temperature sensor and converted to digital word with a user selectable 9- to 12-bit sigma delta analog-to-digital converter. The MCP9800 notifies the host controller when the ambient temperature exceeds a user-programmed set point. The ALERT output is programmable either as a simple comparator for thermostat operation or as a temperature event interrupt. Communication with the sensor is accomplished via a two-wire bus that is compatible with industry standard protocols. This permits reading the current temperature, programming the set point and hysteresis, and configuring the device. Small physical size, low installed cost, and ease of use make the MCP9800 an ideal choice for implementing sophisticated temperature system management schemes in a variety of applications.

Features Applications
  • 2-wire I2C™/SMBus compatible interface
  • User selectable 9- to 12-bit resolution
  • ±1°C accuracy from -10°C to +85°C
  • ±2°C accuracy from +85°C to +125°C
  • Low operating current: 220 µA (typical)
  • Shutdown mode: 1 µA (maximum)
  • Power saving one-shot temperature conversion measurement
  • Space saving SOT-23 package
  • Personal computers and servers
  • Hard disk drives and other PC peripherals
  • Entertainment systems
  • Office equipment
  • Data communication equipment
  • Mobile phones
  • General purpose temperature monitoring

Eval and Demo Boards-Kits

ImageManufacturer Part NumberDescriptionAvailable Quantity
MCP9800DM-DL2 datasheet linkBOARD DEMO 2 FOR MCP9800MCP9800DM-DL2BOARD DEMO 2 FOR MCP98003 - Immediate
MCP9800DM-DL2 product page link
MCP9800DM-TS1 datasheet linkDEMO BOARD TEMP SENSOR MCP9800MCP9800DM-TS1DEMO BOARD TEMP SENSOR MCP98002 - Immediate
MCP9800DM-TS1 product page link
MCP9800DM-PCTL datasheet linkBOARD DEMO FOR PICTAIL MCP9800MCP9800DM-PCTLBOARD DEMO FOR PICTAIL MCP98002 - Immediate
MCP9800DM-PCTL product page link

ICs

ImageManufacturer Part NumberDescriptionAvailable Quantity
MCP9800A0T-M/OT datasheet linkSENSOR TEMP I2C/SMBUS SOT23-5MCP9800A0T-M/OTSENSOR TEMP I2C/SMBUS SOT23-53000 - Immediate
MCP9800A0T-M/OT product page link
MCP9800A5T-M/OT datasheet linkSENSOR TEMP I2C/SMBUS SOT23-5MCP9800A5T-M/OTSENSOR TEMP I2C/SMBUS SOT23-50MCP9800A5T-M/OT product page link
Published: 2010-10-04