REALIZATIONS OF CIJRRENT-MODE CMOS OTA FILTERS

Wu Jie; Qiu Guanyuan

Volume 19 Issue 2

Mar. 1997

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Article Navigation > Journal of Electronics & Information Technology > 1997 > 19(2): 251-257

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Citation:

Wu Jie, Qiu Guanyuan. REALIZATIONS OF CIJRRENT-MODE CMOS OTA FILTERS[J]. Journal of Electronics & Information Technology, 1997, 19(2): 251-257.

Citation:

Wu Jie, Qiu Guanyuan. REALIZATIONS OF CIJRRENT-MODE CMOS OTA FILTERS[J]. Journal of Electronics & Information Technology, 1997, 19(2): 251-257.

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REALIZATIONS OF CIJRRENT-MODE CMOS OTA FILTERS

Wu Jie^{①;邱关源},
Qiu Guanyuan

Received Date: 1994-05-27
Rev Recd Date: 1995-01-16
Publish Date: 1997-03-19

Abstract

Abstract

A methodology to synthesise continous-time current-mode filters using CMOS OTAs is presented. Second-order CMOS-OTA current fllters are systematically generated from the simulation of signal flow graph for a general biquadratic function .The non-ideal effects in high frequency compensation frequency characteristic of OTA-C filters are analyzed. A simple high off frequency method is discussed. Finally, A 4th-order Butterworth lowpasss filter with 1MHz cut and simulated with PSPICE program.

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References

Wilson B, et al. Current-mode signal processing circuits, IEEE ISCAS, Helsinki: 1988, Vol. 3:[2]65-2668,[3]Toumazou C,et al. Eds, Current-Mode Analogue Signal Processing, IEE Proc. G., 1990, 137(2): 1-184.[4]Hughes B, et al. Switched-current-A new technique of analogue sampled-data signal processing, IEEE ISCAS, Pritland, 1989, Vol. 3: 1584-1587.[5]吴杰,邱关源.通信学报,1995, 16(1): 56-62.[6]Wu die. Int[J].J. Electronics.1994, 76(6):1115-1120

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