Microchip MCP9804 Digital Temperature Sensor

Microchip Technology introduced the MCP9804 Temperature Sensor. The MCP9804 sensor provides high temperature accuracy of +0.25° C (typical) and +/- 1° C from -40 to +125°C, as well as static current consumption of just 200 µA (typ.). Available in small 8-pin MSOP and 2 mm x 3 mm DFN packages, the I2C device reduces board space and enables longer battery life for industrial, automotive and consumer applications. The MCP9804 temperature sensor is available in 8-pin MSOP or 2 mm x 3 mm DFN packages for $1.20 each in 10,000-unit quantities, for both package options.

Microchip Technology MCP9804 Digital Temperature Sensor

Microchip MCP9804 Digital Temperature Sensor Features

  • Temperature-to-Digital Converter
  • Accuracy:±0.25°C (typ.) from -40°C to +125°C
  • Accuracy:±1°C (max.) from -40°C to +125°C
  • Operating Voltage Range: 2.7V to 5.5V
  • 2-wire Interface: I2C/SMBus Compatible
  • Operating Current: 200 µA (typ.)
  • Shutdown Current: 2 µA (max.)
  • Available Packages: MSOP-8, 2×3 DFN8

In addition to low power and high accuracy, the MCP9804 sensor features programmable shutdown to extend battery life; an alert feature for over- and under-temperature window monitoring; and a critical temperature-alert feature that provides over-temperature protection, helping to further lengthen system life. The sensor has an industry standard 2-wire, SMBus and Standard I2C Compatible compatible (100kHz/400kHz bus clock) serial interface, allowing up to eight sensors to be controlled in a single serial bus.

The MCP9804 temperature sensor is ideal for industrial freezers that require high accuracy at lower temperatures (such as -20° C to +45° C), consumer electronic devices that require high accuracy at +85° C (such as personal computers), and automotive applications that demand high accuracy at temperatures up to +125° C (such as engine temperature monitoring).

More info: Microchip Technology MCP9804 Digital Temperature Sensor (pdf)