Date: 18/10/2008

Digital temperature sensor with high accuracy for automotive applications

National Semiconductor introduced a digital temperature sensor, LM95172Q that monitors automotive system temperature up to 175 degrees C and delivers +/- 1 degree C accuracy between 130 degrees C and 160 degrees C.

1. Its pinpoint accuracy at high temperatures permits lower system guard-bands.
2. A digital-output temperature sensor with a serial peripheral interface (SPI) and MICROWIRE bus interface.
3. Supplied in die form for mounting on hybrid circuit boards.
4. Has a 16-bit sigma-delta analog-to-digital converter (ADC), with fast conversion rate of 35 ms and high resolution of 0.008 degrees C/LSB.
5. The device also includes a temperature switch as well as self-diagnosis to ensure safe, continuous operation.
6. The device is manufactured on an automotive grade flow meeting AEC-Q100 Grade 0 qualification requirements.

National's WEBENCH Sensor Designer online tool provides complete circuit solutions for common sensing, transmitter or transducer applications.


Pricing: $1.25 each in 1K-unit quantities.

Availability: The device is sampling now with production volumes available in the
fourth quarter of 2008.

Additional company and product information is available at: http://www.national.com/sensors