ADT75 is a 12bit digital temperature sensor. It contains a band gap temperature sensor and a 12-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to a resolution of 0.0625°C. The device offers a shutdown mode that powers down the device, and this mode gives a shutdown current of typically 3µA. The A0, A1, and A2 pins are available for address selection. The OS/ALERT pin is an open-drain output that becomes active when temperature exceeds a programmable limit. The OS/ALERT pin can operate in either comparator or interrupt mode. It is widely used in application such as Isolated sensors, environmental control systems, computer thermal monitoring, thermal protection, industrial process control, power-system monitors, hand-held applications etc.