Digital temperature sensors feature ±1°C accuracy and PWM output

23 April 2003 Analogue, Mixed Signal, LSI

Building upon the company's industry-leading expertise in converter technology, Analog Devices has introduced two digital temperature sensors with single-wire, pulse-width-modulation (PWM) outputs that it says offer the industry's most powerful combination of performance, low power consumption and small package size.

The output of the TMP05 and TMP06 is a square wave; its duty cycle is proportional to the absolute temperature. Both devices offer accuracy to ±1°C max from 0 to +70°C, an operating temperature range from -55 to +150°C, and a supply voltage range of +2,7 V to +5,5 V. They are available in space-saving 5-lead SC-70 and SOT-23 packages.

Both devices offer three modes of operation: daisy chain (allowing designers to connect any number of TMP05/06 sensors to the same microcontroller), continuously converting, and one-shot mode, which reduces the power consumption to 8,25 µW.

The TMP05 has a push-pull output (CMOS/TTL), while the TMP06 has an open-drain output.

Information from Analog Data Products. For more information contact them on 011 259 9400.

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