The ADT75 is a complete temperature monitoring system in 8-lead MSOP and SOIC packages. 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 ADT75 is pin and register compatible with the LM75 and AD7416. The ADT75 is guaranteed to operate at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V， the average supply current is typically 200 μA. The ADT75 offers a shutdown mode that powers down the device， and this mode gives a shutdown current of typically 3 μA. The ADT75 is rated for operation over the ?55°C to +125°C temperature range. 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.