TMS320F28379D: Measuring sinusoidal waveform with ADC

Davood Keshavarzi

Part Number: TMS320F28379D

Hello colleague,

I am working with TMS320F28379D and want to measure a sinusoidal waveform. How can I approach this goal? I have to use level shifter? Can ADC differential mode help me?

Thanks

over 4 years ago

0 Kevin Allen18 over 4 years ago

TI__Mastermind 45236 points

Hi Davood,

The ADC conversion range is from V_REFLO to V_REFHI regardless of single-ended or differential mode. The input signals will need to be within this range.

The ADC input sine signal needs to be scaled to be within the conversion range. I found this discussion that should help explain:

https://e2e.ti.com/blogs_/b/analogwire/posts/three-ways-to-scale-an-analog-input-signal

Best,

Kevin

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TMS320F28379D: Measuring sinusoidal waveform with ADC