A sigma-delta modulator is provided with a feedback digital-to-analog converter having less resolution than the quantizer, while providing a reduced length output word, requiring minimal additional internal processing, and shaping of the truncation error by an effective noise transfer function greater than the order of the host sigma-delta modulator.

 
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< Buffer for A/D conversion

> Correcting offset errors associated with a sub-ADC in pipeline analog to digital converters

> Chopping and oversampling ADC having reduced low frequency drift

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