To generate a sine wave with the positive and negative values?

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Anonymous
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I want to generate a AC voltage to drive a resolver.And,I know the WaveDAC8 can generate a sine wave directly.But,it is DC voltage.Dose anyone have a idea to transform it to AC?

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ETRO_SSN583
Level 9
Level 9
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If you want output symmetrical to ground then just a cap

   

will accomplish that. If you need it buffered, then external

   

OpAmp / Buffer would be needed. A method of generating

   

a negative supply voltage for the external amp attached

   

shown using diodes. Or use a charge pump, depends on

   

load current requirements you have.

   


   

Regards, Dana.

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