MSP430F5438A: Sampling accuracy of A10 channel

Green Deng

Dear team:

My client wants to know what is the approximate sampling error of the A10 channel ADC?

It is used to collect temperature, the temperature range is -30~70℃. Does the description in the screenshot of the following datasheet mean that the error of the sampling temperature is ±3℃?

over 4 years ago

0 Luke Ledbetter over 4 years ago

TI__Mastermind 27230 points

Hi Green Deng,

Are you looking for the ADC accuracy or the Temperature Sensor accuracy?

Regards,

Luke

0 Green Deng over 4 years ago in reply to Luke Ledbetter

TI__Expert 4490 points

The customer first asked me the ADC accuracy, and then asked me the Temperature Sensor accuracy.

+1 Luke Ledbetter over 4 years ago in reply to Green Deng

TI__Mastermind 27230 points

Hi Green,

The ADC accuracy should not be influenced by the temperature calibration. The temperature sensor though could vary based on that calibration, customers can use their own calibration data if they prefer. The ±3 is the range in the calibrations that have been done so a 85℃'s calibration could actually be at 83℃.

Regards,

Luke

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MSP430F5438A: Sampling accuracy of A10 channel