대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1991년도 하계학술대회 논문집
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- Pages.857-860
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- 1991
BICMOS를 이용한 전류형 고속 8비트 A/D변환기
A High-speed 8-Bit Current-Mode BICMOS A/D Converter
- 한태희 (한국과학기술원, 전기 및 전자공학과) ;
- 조상우 (한국과학기술원, 전기 및 전자공학과) ;
- 이희덕 (한국과학기술원, 전기 및 전자공학과) ;
- 한철희 (한국과학기술원, 전기 및 전자공학과)
- Han, Tae-Hi (Dept. of Electrical Engineering, KAIST) ;
- Cho, Sang-Woo (Dept. of Electrical Engineering, KAIST) ;
- Lee, Heui-Deok (Dept. of Electrical Engineering, KAIST) ;
- Han, Chul-Hi (Dept. of Electrical Engineering, KAIST)
- 발행 : 1991.07.18
초록
This paper describes a High-Speed 8-bit Current-Mode BiCMOS A/D Converter. The characteristics of this A/D Converter are as fellows. First, as ADC is operating in current-mode we can obtain the properties of increase of converting speed, low noise, and wideband. Second, the properties of high switching speed in bipolar transistor and of high packing density, low power consumption in MOS trnsistor are combined. Finally we reduce chip area by designing it with subranging mode and improve the converting speed by performing subtraction directly, which doesn't need D/A convertings, using current switching element. This converter is composed of two 4-bit ADC, current soure array which provides signal and reference current, current comparator and encoding network.
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