Home > Support > Technical Support > FAQ

Enter the Email address you like to share
Email
Name
Validate Code
Submit Cancel

FAQ

FAQ

After using the ADC to obtain a temperature sensor value in the NuMicro® series, how does a user convert it into an actual temperature?  Issue Date：2016-12-20

The temperature for a temperature sensor can be calculated by the following formula:

Vtemp (mV) = Gain (mV/℃) x Temperature (℃) + Offset (mV)

where Gain and Offset are constants, which may vary in each NuMicro® series.

 

For example, in the NuMicro® M051 series:

When the operating voltage of the M051 series is 3.3V, use a 12-bit ADC to obtain the temperature sensor value as 0x33D = 829.

 

The following can be obtained:

Vtemp = (829 / 4096) * 3.3 = 0.668 (V) = 668 (mV)

 

The Gain and Offset for the M051 series are -1.75 (mV/℃) and 724 (mV), respectively, as shown in the figure below.

Thus, we can use the temperature sensor calculation formula

668 = (-1.75) * Temperature + 724

and obtain

Temperature = (668 – 724) / (-1.75) = 32 (℃)

Products: Microcontrollers ,Arm Cortex-M0 MCUs ,M051 Base Series ,M0519 Series ,Nano100/102 Base Series ,NUC029 Series ,NUC100/200 Advanced Series ,NUC120/122/123/220 USB Series ,NUC130/230 CAN Series ,NUC140/240 Connectivity Series ,Arm Cortex-M4 MCUs ,M451 Base Series ,M451M Series ,M452 USB Series ,M453 CAN Series ,M4TK Touch Key Series ,NUC442/472 Series
Applications:
Function: Peripherals,Analog,ADC,Temperature Sensor

以綠色半導體技術豐富人類生活的隱形冠軍

Be a hidden champion in providing sustainable semiconductors to enrich human life.

Terms of Use Privacy Policy Contact us Site Map

Copyright ©2008-2025 Nuvoton Technology Corporation