ADT7461A

ADT7461A +15C Temperature Monitor with Series Resistance Cancellation The ADT7461A is a dual-channel digital thermometer and undertemperature/overtemperature alarm, intended for use in PCs and thermal management systems. It is pin- and register-compatible with the ADM1032 and ADT7461. A feature of the ADT7461A is series resistance cancellation, where up to 1.5 kW (typical) of resistance in series with the temperature monitoring diode can be automatically cancelled from the temperature result, allowing noise filtering. The ADT7461A has a configurable ALERT output and an extended, switchable temperature measurement range. The ADT7461A can measure the temperature of a remote thermal diode accurate to ±1°C and the ambient temperature accurate to ±3°C. The temperature measurement range defaults to 0°C to +127°C, compatible with the ADM1032, but it can be switched to a wider measurement range of −64°C to +191°C. The ADT7461A communicates over a 2-wire serial interface, compatible...