Temperature monitoring with SMBus interface
The ADM1032ARZ-1 is a digital temperature sensor from Analog Devices that measures both its own die temperature and the temperature of an external diode-connected transistor, reporting results over an SMBus interface. Accuracy is rated at ±3°C over the 0°C to 100°C test range, which is typical for system-level overtemperature protection in servers, telecom equipment, and industrial controllers.
Supply and operating envelope
Supply voltage spans 3V to 5.5V, so the part works on common 3.3V or 5V rails without an extra regulator. The local sensing range is 0°C to 100°C, while the remote channel extends to 120°C — useful for monitoring a hot CPU or power transistor die that runs above ambient.
Package and procurement details
Housed in an 8-SOIC package (0.154" width, 3.90mm body), surface-mount, supplied in Bulk — not tape-and-reel, so order quantities are handled as loose tubes or trays. Features include an output switch, programmable temperature limit, and standby mode, allowing the sensor to assert an alert pin when the measured temperature exceeds a user-set threshold.