The ADT7461 is a dual-channel digital thermometer and under/over temperature alarm intended for use in PCs and thermal management systems. It is pin- and register-compatible with the ADM1032. The ADT7461 has three additional features: series resistance cancellation (where up to 3 kΩ(typical) of resistance in series with the temperature monitoring diode may be automatically cancelled from the temperature

FEATURES
•On-Chip and Remote Temperature Sensor
•0.25°C Resolution/1°C Accuracy on Remote Channel
•1°C Resolution/3°C Accuracy on Local Channel
•Automatically Cancels Up to 3 kΩ(Typ) of Resistance in Series with Remote Diode to Allow Noise Filtering
•Extended, Switchable Temperature Measurement Range 0°C to +127°C (Default) or –55°C to +150°C
•Pin−and Register−Compatible with the ADM1032
•2−Wire SMBus Serial Interface with SMBus Alert Support
•Two SMBus Address Versions Available:
♦ADT7461 SMBus Address is 0x4C
♦ADT7461-2 SMBus Address is 0x4D
•Programmable Over/Undertemperature Limits
•Offset Registers for System Calibration
•Up to Two Overtemperature Fail−Safe THERMOutputs
•Small 8−Lead SOIC or 8−Lead MSOP Packages
•170 A Operating Current, 5.5 A Standby Current
•These are Pb−Free Devices