Dallas Semiconductor: Low-Cost, ±0.5°C Accurate (max), Analog Temperature Sensor

April 13, 2004- Dallas Semiconductor introduces the DS600, the world's lowest cost, ±0.5°C (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. Its high accuracy, low cost, and ease of use make it ideal for applications such as cold-junction compensation for high-precision thermocouples, replacing costly RTDs or existing accurate analog temperature sensors. The DS600 is also ideal for medical, automotive, and industrial applications.

The DS600 temperature sensor measures its own temperature and outputs a voltage proportional to degrees centigrade. The voltage output has a +6.45mV/°C (typ) sensitivity and a +509mV DC offset, which allows negative temperatures to be easily measured and reported. The device's ±0.5°C (max) accuracy is rated over the 2.7V to 5.5V operating voltage range and a -20°C to +100°C temperature range. Outside this range it is ±0.75°C (max) accurate to -40°C and +125°C.

The DS600 also contains a thermostat function with a user-defined threshold and an internal comparator to ensure high-precision threshold detection. Low-power applications are easily accommodated because the DS600 has only 140µA (max) current consumption and has a shutdown mode with a current consumption of only 2.5µA. The DS600 is available in an 8-pin µSOP-EP package, enabling a quick thermal-response time in temperature reporting. Prices start at $1.80 (1000-up, FOB USA).

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