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Very high dynamic-range switched capacitor ADC with large input impedance for applications tolerating increased distortion and noise at large input signal levels
Very high dynamic-range switched capacitor ADC with large input impedance for applications tolerating increased distortion and noise at large input signal levels
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机译:具有大输入阻抗的超高动态范围开关电容ADC,适用于在大输入信号电平下承受更大失真和噪声的应用
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摘要
A modulator is configured to respond to input swings by providing a feedback voltage via a feedback path to compromise an increase in noise and distortion power with increasing signal power at signal levels exceeding a predetermined threshold. A digital-to-analog converter (DAC) generates a feedback voltage with a resistor string biased with a given current and switches as a function of an input value to mitigate the voltage swing at a summing node.
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