SLAZ661T March   2015  – May 2021 MSP430FR2533

 

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6.1 ADC50

ADC Module

Category

Functional

Function

Erroneous ADC conversion result for internal temperature sensor in LPM3 mode

Description

When ACLK is used as ADC clock source and device is in LPM3 mode while sampling the on-chip temperature sensor, the ADC may generate erroneous conversion results.

Workaround

1) Use SMCLK or MODCLK as the ADC clock source. A 100us sampling time is required if triggering ADC conversion from LPM3.

OR

2) Use LPM0 or Active Mode.