MCP9808 Silicon Temperature Sensor

By Microchip Technology 136

MCP9808 Silicon Temperature Sensor

Microchip's MCP9808 serves a broad range of applications by guaranteeing high accuracy of 0.5 degrees from -20°C to +100°C, along with high temperature resolution of 12 bits (0.0625°C/LSB). The MCP9808 comes in small MSOP and 2 mm x 3 mm DFN 8-pin packages, for space-constrained applications. Additional features include shutdown, an under/over-temperature monitor and a critical-temperature alert. Many applications require high accuracy over a variety of temperatures, such as thermostats (-20°C to +45°C), personal computers (+85°C) and industrial / automotive (+125°C). With its extremely high accuracy levels over a wide temperature range, the MCP9808 is well suited for all of these applications and more.

  • Accuracy:
    • ±0.25°C (typ.) from -40°C to +125°C
    • ±0.5°C (max.) from -20°C to +100°C
    • ±1°C (max.) from -40°C to +125°C
  • User programmable temperature limits:
    • Temperature window limit
    • Critical temperature limit
  • User selectable measurement resolution: 0.5°C, 0.25°C, 0.125°C, 0.0625°C
  • Operating voltage range: 2.7 V to 5.5 V
  • Operating current: 200 µA (typ.)
  • Shutdown current: 0.1 µA (typ.)
  • 2-wire interface: I2C / SMBus compatible
  • User programmable temperature alert output