System and method for multi channel sampling SAR ADC
US-9270293-B2 · Feb 23, 2016 · US
Analog-to-digital converter for a multi-channel signal acquisition system
US8981985B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8981985-B2 |
| Application number | US-201214342918-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 6, 2012 |
| Priority date | Sep 6, 2011 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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An analog-to-digital converter (ADC) for a multi-channel signal acquisition system, a signal acquisition system, a method of generating a digital output code from an analog input signal, and a method of converting a plurality of analog signals to a digital signal are provided. The ADC comprises a sample-and-hold (S/H) circuit operable to receive an analog input signal for each input channel; a digital-to-analog converter (DAC) common to all input channels; a comparator for each input channel configured to receive an output signal from the S/H circuit of the respective input channel, and an output signal from the DAC, for generating a comparison result of the two signals at each conversion cycle of the comparator; and a successive approximation register (SAR) common to all input channels and configured to generate, for each input channel, a digital output code based on the comparison results received from the respective comparator.
First claim
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The invention claimed is: 1. An analog-to-digital converter (ADC) for a multi-channel signal acquisition system, the ADC comprising: a sample-and-hold (S/H) circuit for each input channel, and operable to receive a respective analog input signal for each input channel; a digital-to-analog converter (DAC) common to all input channels; a comparator for each input channel, said comparator configured to receive an output signal from the S/H circuit of the respective input channel…
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Electricity · mapped topic
- H03M1/1225Primary
Electricity · mapped topic
- H03M1/34Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8981985B2 cover?
- An analog-to-digital converter (ADC) for a multi-channel signal acquisition system, a signal acquisition system, a method of generating a digital output code from an analog input signal, and a method of converting a plurality of analog signals to a digital signal are provided. The ADC comprises a sample-and-hold (S/H) circuit operable to receive an analog input signal for each input channel; a …
- Who is the assignee on this patent?
- Lian Yong, Liew Wen-Sin, Zou Xiaodan, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H03M1/1225. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).