Datasheet Summary
Four-Channel Remote Temperature Sensor
General Description
The MAX31732 is a multi-channel temperature sensor that monitors its own temperature and the temperatures of up to four external diode-connected transistors. A resistance cancellation feature pensates for up to 300Ω of series resistance between the external thermal diode and the MAX31732, while beta pensation corrects for temperature-measurement errors due to low-beta sensing transistors. The sensor also allows ideality factors between 0.9844 and 1.311.
The MAX31732 offers two open-drain, active-low alarm outputs, ALARM1 and ALARM2. When the measured temperature of a channel crosses the respective primary...