低壓低功耗CMOS電流反饋運(yùn)算放大器設(shè)計
本文引用地址:http://www.ex-cimer.com/article/92480.htm
結(jié)語
本設(shè)計在有關(guān)資料的基礎(chǔ)上,提出了自己設(shè)計的低壓低功耗電流反饋運(yùn)算放大器。在輸入級合理設(shè)置CCII+的W/L來提高其帶寬,避免了輸入級的迷勒補(bǔ)償。在輸出級使用了緩沖器,在開環(huán)時,將輸出電阻減小到幾歐姆左右,極大的提高了負(fù)載能力。-3DB帶寬為23.3MHz,靜態(tài)功耗降低為為3.5mW。當(dāng)前,電流負(fù)反饋運(yùn)算放大器主要是基于雙極工藝的,但是隨著電源電壓的降低及芯片集成度的增加,對CMOS型電路的研究是很有必要的。
參考文獻(xiàn):
[1] 王衛(wèi)東.現(xiàn)代模擬集成電路設(shè)計原理及應(yīng)用[M].北京:電子工業(yè)出版社,2008
[2] BRENT J.MAUNDY. A New Design Topology for Low-Voltage CMOS Current Feedback Amplifiers
2006,53(1):34-38
[3] PHILLIPE. ALLEN著,馮軍,李智群譯.CMOS 模擬集成電路設(shè)計(第二版)[M].北京:電子工業(yè)出社, 2005
[4] 段曉峰, 陳向東, 黎文模 .一種新型的CMOS電流反饋運(yùn)算放大器[J]. 微電子學(xué)與計算機(jī), No.11, p234~236, 2006
[5] V. K. SINGH, A. K. SINGH, D. R. BHASKAR and R. SENANI, “Novel Mixed- Mode Universal Biquad Configuration,” IEICE Electronics Express, Vol. 2, No. 22, November 2005, pp. 548-553
[6] R.K. SHARMA and R. SENANI, “On the Realization of Universal Current Mode Biquads Using a Single CFOA,” Analog Integrated Circuits and Signal Processing, Vol. 41, 2004, pp. 65-78
[7] M. DJEBBI, A. ASII and M. SAWAN, “Design of Monolithic Tunable CMOS Band-Pass Filter Using Current Feedback Operational Amplifiers,” Analog Integrated Circuits and Signal Processing, Vol. 45, 2005, pp. 143-154
[8] E. TLELO-CUAUTLE, D. TORRES-MUNOZ, L. TORRES-PAPAQUI and A. GAONA- Hernández, “Synthesis of CCII+s and CFOAs by manipulation of VFs and CMs,” IEEE BMAS, web-publication, September 2005.
[9] 龐佑兵,梁偉.電壓反饋和電流反饋運(yùn)算放大器的比較[J].微電子學(xué),2003,33(2):132-135
[10] B. MAUNDY, P. ARONHIME, and S. GIFT, “A new configuration for current feedback amplifiers,” in Proc.IEEE Midwest Symp. Circuits an Systems,Aug. 2002
電流傳感器相關(guān)文章:電流傳感器原理
評論