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CCS/MSP430FR2422: MSP430FR2422

Mutharagan T
Prodigy 120 points
Part Number: MSP430FR2422

Tool/software: Code Composer Studio

Dear Sir,

Pleas give a solution.

I need negative signal feed to ADC channel. 

One channel for Positive voltage +2 A7

Another channel for Negative    -2    A6

Give me a solution 

  • 0
    TI__Expert 7015 points

    You can use OPA and bias voltage to convert the -2v signal to positive signal before feeding into the ADC input. After ADC conversion, substract the bias voltage to get the correct value. 

    Thanks, 

    Lixin 

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