Analogue, Mixed Signal, LSI


Temperature sensor allows up to 27 I²C addresses

25 July 2007 Analogue, Mixed Signal, LSI

Maxim's DS75LX is a low voltage digital temperature sensor that allows up to 27 addresses on one I²C communication bus by providing three dedicated address pins that can be placed in one of three states: tied to GND, tied to VDD, or left floating. The device operates from a low 1,7 V to 3,7 V supply voltage, and it can be connected directly to low-voltage supply rails. The temperature sensor is factory calibrated to an accuracy of ±2,0°C (max) over its entire supply-voltage range and a wide temperature range of -25 to +100°C. It is ±3,0°C (max) accurate over its full operating-temperature range of -55 to +125°C. Temperature is reported as user-selectable 9-, 10-, 11-, or 12-bit digital temperature readings that translate to resolutions between 0,5°C (9 bit) and 0,0625°C (12 bit). The DS75LX also has thermostat functionality with user-defined trip points that allow the user to customise the threshold temperature and output hysteresis.



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