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Digital temperature sensor aids thermal profiling

Posted: 17 May 2011     Print Version  Bookmark and Share

Keywords:digital  temperature sensor  sensor 

Texas Instruments Inc. rolls out the TMP103 that it claims is the smallest power-efficient digital temperature sensor consuming 97 per cent less power and with 75 per cent smaller size than the closest competitor.

It also provides global read/write functionality to ease thermal profiling whereby using a single command, eight TMP103 devices mounted on the board can simultaneously identify and monitor hotspots. The TMP103 simplifies thermal profiling while enabling longer battery life and smaller form factors for portable consumer electronics such as smartphones, tablets, laptops and netbooks.

The sensor draws a maximum of 1µA while in shutdown mode and 3µA while in active mode to extend battery life. In its active state, the TMP103 draws approximately half the power of the next closest competitor in shutdown state. It measures a mere 0.76x0.76mm, and is designed for high-density, space-constrained applications requiring multiple temperature measurement zones. With a single command, the software can poll up to eight devices, reducing MIPS and bandwidth on the I2C bus.

An evaluation module is available now for the TMP103 for Rs.2,187.50 ($49). An IBIS model to verify board signal integrity requirements is also available. The TMP103 is available now in a 0.76 x0.76mm WCSP package for a suggested retail price of Rs.17.41 ($0.39) in 1,000-unit quantities.

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