SLAZ668P May   2015  – August 2021 MSP430FG6625

 

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6.9 DAC5

DAC Module

Category

Functional

Function

Switching events on alternative DAC output pins can change output level of active DAC output pin.

Description

When the DAC output has multiple pin output options, switching events on unused alternate pin output options, such as GPIO output voltage level transitions and pulses or input signals that pass GPIO high or low thresholds, dynamically affect the output voltage level of the DAC output in use. This effect only lasts for a short period after the switching event.

Workaround

If the dynamic voltage level effect on the chosen DAC output cannot be tolerated, see the workarounds below:
A. Avoid high to low or low to high transitions on the alternate DAC output pin when selected DAC output pin is active. Keep alternate pin pulled high or low when DAC is in use.
B. Do not use pin featuring alternative DAC output, and keep in an output low state.