Texas Instruments has introduced TMP006, a single-chip passive infrared MEMS digital temperature sensor for contact-less measurement of temperature in portable consumer electronic devices.
A first of its kind in the industry, the sensor enables precise measurement of device case temperature in mobile consumer devices such as notebooks, tablets and smartphones. The sensor can also measure the temperature of objects that are outside the device.
The integrated temperature sensor features a 16-bit analog-to-digital-converter, signal conditioning, an on-chip MEMS thermopile sensor, voltage references and a local temperature sensor on a single chip measuring 1.6x1.6 mm. Its size is 95% smaller than existing thermopile sensors.
The MEMS sensor consumes 1 uA in shutdown mode and 240 uA quiescent current. It can operate at a temperature range of -40 °C and +125 °C with ± 1°C accuracy for the infrared sensor and ± 0.5 °C accuracy for the local sensor.