Journal of the Korean Institute of Telematics and Electronics A (전자공학회논문지A)
- Volume 33A Issue 4
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- Pages.136-141
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- 1996
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- 1016-135X(pISSN)
A study on a CMOS analog cell-library design-A CMOS on-chip current reference circuit
CMOS 아날로그 셀 라이브레이 설계에 관한 연구-CMOS 온-칩 전류 레퍼런스 회로
Abstract
In this paper, a new CMOS on-chip current reference circit for memory, operational amplifiers, comparators, and data converters is proposed. The reference current is almost independent of temeprature and power-supply variations. In the proposed circuit, the current component with a positive temeprature coefficient cancels that with a negative temperature coefficient each other. While conventional curretn and voltage reference circuits require BiCMOS or bipolar process, the presented circuit can be integrated on a single chip with other digiral and analog circits using a standard CMOS process and an extra mask is not needed. The prototype is fabricated employing th esamsung 1.0um p-well double-poly double-metal CMOS process and the chip area is 300um
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