anyone can tell me the differents of delta-sigma in dac/adc?

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anyone can tell me the differents of delta-sigma in dac/adc?thanx a lot1
 

DAC: delta-sigma modulator is done in digital domain. And Digital filter for DAC is to suppress the THD.
ADC: delta-sigma modulator is done is analog domain. And Digital filter for ADC is to suppress the imaged in-band noise.
 

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