Invention Grant
US09503121B2 Very high dynamic-range switched capacitor ADC with large input impedance for applications tolerating increased distortion and noise at large input signal levels
有权
非常高的动态范围开关电容ADC，具有大的输入阻抗，适用于在大输入信号电平下允许增加的失真和噪声
- Patent Title: Very high dynamic-range switched capacitor ADC with large input impedance for applications tolerating increased distortion and noise at large input signal levels
- Patent Title (中): 非常高的动态范围开关电容ADC，具有大的输入阻抗，适用于在大输入信号电平下允许增加的失真和噪声
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Application No.: US14516736Application Date: 2014-10-17
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Publication No.: US09503121B2Publication Date: 2016-11-22
- Inventor: Elmar Bach , Patrizia Greco , Snezana Stojanovic , Dietmar Straeussnigg
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Eschweiler & Associates, LLC
- Main IPC: H03M3/00
- IPC: H03M3/00
Abstract:
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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