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MSP430FR2355: Can we implement Differential Analog input reading in MSP430FR2355

Sai Santha
Prodigy 190 points
Part Number: MSP430FR2355

Hello Everyone, 

I am currently working on a project to read  Analog AC voltage through one of ANALOG CHANNEL in  MSP430FR2355 Evaluation Board. I have one question to ask. 

1) Is it possible to implement ADC differential Input reading in MSP430FR2355 Evaluation Board. If so, please let me know. 

Do you have any reference designs to follow up with? 

Looking forward to hearing from you. 

Thanks and Regards,

Sai 

  • 0
    TI__Mastermind 20005 points

    Hi, ADC on FR2355 support single-ended inputs only. There are 4 smart analog combo (SAC) on FR2355 can be configure as OPA. as I know, OPA can convert differential inputs to single-ended inputs. but I haven't such experience or existing solution. you can search this kind of solution and evaluate if OPA is helpful. otherwise, you can consider other MSP430 P/N which ADC can support differential inputs. Thanks！

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