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New temperature sensor from Torex

New temperature sensor from Torex

The new XC3101 series from Torex is a cmos bandgap type temperature sensor IC which comes with analogue (VAOUT) and alarm (VDOUT) outputs, and consumes 3.5µA.

According to Torex, its low consumption, combined with its small size, make it well suited for battery powered devices or other low profile power conscious applications.

Torex says the voltage outputted by the VAOUT pin is the result of a +/-3.5°C temperature detection that can operate between -40 and 100°C, followed by a linear (+/-0.4%) temperature to voltage conversion which has a coefficient of -11.77mV/°C.

According to Torex, the is suitable for applications that require accurate tracking of temperature via an analogue output and as an indication as to when the monitored temperature rises above a pre defined value, when the VDOUT pin (alarm output) of the XC3101 will provide an appropriate logic signal.

The +/-4.5°C threshold of the N-ch open drain alarm output is 70°C and the detect output goes 'Low' when the temperature monitored by the IC goes above this preset threshold. The output returns to 'High' when the temperature drops below a preset hysteresis, with a width selectable between 0, 2.4 and 5°C. The XC3101 operates with an input voltage range of 2.7 to 5.5V.

Author
Torex

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