ETRI-Knowledge Sharing Plaform



특허 검색
구분 출원국
출원년도 ~ 키워드


등록 파이프라인 아날로그-디지털 변환기 제어 방법 및 이를 구현한 파이프라인 아날로그-디지털 변환기

파이프라인 아날로그-디지털 변환기 제어 방법 및 이를 구현한 파이프라인 아날로그-디지털 변환기
이미지 확대
전영득, 조영균, 권종기, 김귀동, 이승철, 김종대
12027495 (2008.02.07)
20090033530 (2009.02.05)
7583219 (2009.09.01)
Provided are a pipeline Analog-to-Digital Converter (ADC) without a front-end Sample-and-Hold Amplifier (SHA) and a method of controlling the same. The method includes the steps of: simultaneously sampling, at an ADC and a residual signal generator included in a first stage, an analog input signal and respectively generating a first sampling value and a second sampling value; holding, at the residual signal generator, the second sampling value, and simultaneously amplifying and converting, at the ADC, the first sampling value into a corresponding digital code; and generating, at the residual signal generator, a residual signal using the digital code. The pipeline ADC and method of controlling the same minimize sampling mismatch caused by removing a front-end SHA, thereby ensuring stable performance without a front-end SHA. Since a front-end SHA is not used, it is possible to reduce chip size and power consumption, and improve the performance of the ADC.
KSP 제안 키워드
Analog input, Analog to digital converter(ADC), Digital code, First stage, Front-End, Input signal, Pipeline ADC, Power Consumption, Residual signal, Sample-and-hold amplifier, Sampling value(SV), Signal Generator, analog-to-digital, digital converter, sample-and-hold, stable performance