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US 12,683,626 B2Granted
Sample and hold circuit and related driver circuit
AssigneeNovatek Microelectronics Corp.
InventorsJin-Yi Lin, Jhih-Siou Cheng, Yung-Te Chang, Chih-Cheng Chen
Life of this patent
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Abstract
A sample and hold (S/H) circuit includes an analog-to-digital converter (ADC), a register and a digital-to-analog converter (DAC). The ADC receives an input signal and converts the input signal into a digital code. The register, coupled to the ADC, stores the digital code. The DAC, coupled to the register, converts the digital code into an output signal.
Claims8
A sample and hold (S/H) circuit, comprising:
- an analog-to-digital converter (ADC), to receive an input signal and convert the input signal into a digital code;
- a register, coupled to the ADC, to store the digital code;
- a digital-to-analog converter (DAC), coupled to the register, to convert the digital code into an output signal;
- and
- a current-to-voltage converter, coupled between the ADC and an input terminal of the S/H circuit, to convert an input current of the S/H circuit into a voltage to serve as the input signal;
- wherein the current-to-voltage converter comprises a transistor, of which a gate terminal and a drain terminal are coupled to each other and further coupled to an input terminal of the ADC.
3 more elements
Dependencies are inferred from the claim text.