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Dallas launches 0.5C accurate sensor

Posted: 15 Apr 2004 ?? ?Print Version ?Bookmark and Share

Keywords:ds600? dallas semiconductor? temperature sensor?

The DS600 sensor from Dallas Semiconductor Corp. is claimed by the company as the world's lowest cost, 0.5C (max) accurate analog-output temperature sensor.

The device comes factory calibrated and has a linear-voltage output characteristic, making it simple to use and implement in designs. According to Dallas, the product's high accuracy, low cost and ease of use make it ideal for applications such as cold-junction compensation for high-precision thermocouples. Other suitable applications include medical, automotive, and industrial.

The temperature sensor measures its own temperature and outputs a voltage proportional to degrees centigrade. The voltage output has a 6.45mV/C (typical) sensitivity and a 509mVdc offset, which allows negative temperatures to be easily measured and reported. Its 0.5C (max) accuracy is rated over the 2.7V to 5.5V operating voltage range and a -20C to 100C temperature range. Outside this temperature range, it is 0.75C (max) accurate to -40C and 125C.

The DS600 also contains a thermostat function with a user-defined threshold and an internal comparator to ensure high-precision threshold detection. The company said that low-power applications are easily accommodated because the device has a 140?A (max) current consumption and has a shutdown mode with a current consumption of 2.5?A.

Available in an 8-pin microSOP-EP package, the sensor is priced at $1.80 for 1,000-up order quantities.

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