ELECTRONIC SENSORS Figure 4. Remote/local multichannel temperature sensors.


accepts standard write byte, read byte, send byte and receive byte commands to  the behaviour of the sensor. The MAX31875  (WLP) and operates over the -50°C to +150°C 


CPU, FPGA, ASIC, etc. (with On-Board Thermal Diode)


 like CPUs, FPGAs and ASICs, semiconductor manufacturers incorporate a temperature-   placed on the IC die, the measurement  


ADI offers several ICs made expressly to detect a thermal diode’s temperature  some of these devices measure just one thermal diode, others can measure up to    


  diode sensors can be widely employed in electrically noisy environments such as  and PCI buses.


An example of a remote diode sensor  latest multichannel temperature sensor that monitors its own temperature and the temperatures of up to four external diode-connected transistors. A resistance  series resistance between circuit-board traces and the external thermal diode, while beta compensation corrects for temperature-measurement errors due to  This device offers two open-drain, active-low alarm outputs, ¯(“ALARM1” ) and   respectively. A non-volatile memory (NVM) 


Figure 5. MAX31732 typical application circuit.


   protocols (write byte, read byte, send   temperature thresholds.


Conclusion


    interface, power consumption and cost. 


22 SEPTEMBER 2025 | ELECTRONICS FOR ENGINEERS


 select a temperature sensor that meets  and reliable temperature measurements in   upfront can lead to improved performance,        Analog Devices: www.analog.com


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