NE1617A two-channel temperature monitor

Philips semiconductor introduced the NE1617A two-channel temperature monitor. NE1617A measures the temperature of itself and the temperature of a remote sensor which is a diode connected transistor. The remote sensor can be in the form of either a discrete NPN/PNP, such as the 2N3904/2N3906, or a diode connected PNP built into another die .
The temperature from both , the remote and local sensors is stored in a register that can be read via a 2-wire SMBus.
NE1617A from Philips Semiconductor can be used for replace the Maxim MAX1617 and Analog Devices ADM1021 .
Main features of the NE1617A are : monitors local and remote temperature , local (on-chip) sensor accuracy: ±2 °C at 60 °C to 100 °C / ±3 °C at -40 °C to 125 °C , Remote sensor accuracy: ±3 °C at 60 °C to 100 °C / ±5 °C at -40 °C to 125 °C , No calibration required , Programmable overtemperature/undertemperature alarm , SMBus 2-wire serial interface up to 100 kHz , 3 V to 5.5 V supply range , 70 mA supply current in operating mode , 3 mA (typical) supply current in standby mode