Journal of the Korean Institute of Telematics and Electronics (대한전자공학회논문지)
- Volume 26 Issue 3
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- Pages.137-144
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- 1989
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- 1016-135X(pISSN)
OTA-Based Analog Multiplier Architecture
OTA를 이용한 Analog Multiplier 구현에 관한 연구
- Choi, Young-Keun (Dept. of Elec. and Comp. Eng., Korea Univ.) ;
- Kim, Young-Ju (Dept. of Elec. and Comp. Eng., Korea Univ.) ;
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Kim, Soo-Won
(Dept. of Elec. and Comp. Eng., Korea Univ.)
- Published : 1989.03.01
Abstract
A building block approach to generate an analog multiplier architecture is described. Several non-idealities including the effects of the mobility degradation present in a typical operational transconductance amplifier (OTA) are minimized by using a two cross coupled OTA structure. It is shown that the third-order harmonic distortion is cancelled even at high temperatures. It is proved that OTA based approach is suitable for analog singal processing at relatively high temperatures.
아나로그 승산기를 구현하기 위하여 OTA를 회로의 기본요소로 사용하였다. OTA에서 일반적으로 나타나는 이동도 감쇄등의 비이상적인 현상을 두개의 OTA를 크로스 커플 형태로 사용함으로써 최소화 할 수 있음을 보였다. 실험적으로
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