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Resistor based delta sigma multiplying DAC with integrated reconstruction filter
Resistor based delta sigma multiplying DAC with integrated reconstruction filter
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机译:具有集成重建滤波器的基于电阻的delta sigma乘法DAC
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摘要
A digital to analog converter that includes a delta sigma modulator coupled to receive a digital data. The delta sigma modulator supplies a multi-bit resistor digital to analog converter (DAC). The multi-bit resistor digital to analog converter supplies an amplifier with an analog signal corresponding to the digital data. A first low pass filter is coupled between the multi-bit digital to analog converter and the amplifier stage and filters out shaped quantization noise before it reaches the amplifier. A second low pass filter is coupled to an output of the amplifier stage and filters out residual quantization noise and chopping artifacts from the amplifier stage.
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