FEATURES
1 local and 2 remote temperature sensors 0.25°C resolution/1°C accuracy on remote channels 1°C resolution/1°C accuracy on local channel Automatically cancels up to 1.5 kΩ (typ) of resistance in series with the remote sensors Extended, switchable temperature measurement range 0°C to +127°C (default) or −55°C to +150°C 2-wire SMBus serial interface with SMBus alert support Programmable overtemperature/undertemperature limits Offset registers for system calibration Up to 2 overtemperature fail-safe THERM outputs Small, 10-lead MSOP package 240 μA operating current, 5 μA standby current GENERAL DESCRIPTION
One feature of the ADT7482 is series resistance cancellation where up to 1.5 kΩ (typical) of resistance in series with each of the temperature monitoring diodes can be automatically cancelled from the temperature result, allowing noise filtering. The temperature of the remote thermal diodes and ambient temperature can be measured accurate to ±1°C. The temperature measurement range, which defaults to 0°C to 127°C, can be switched to a wider measurement range of from −55°C to +150°C.
Analog Devices
