A CMOS 5 th Elliptic Gm-C Filter Using a New Fully Differential Transconductor

A new fully differential transconductor for realization of CMOS analog Gm-C filter is presented. The presented transconductor offers the advantage of a high gain and small size. And the designed fully differential transconductor and a typical transconductor have been compared for a gain and frequency. In additional to as a application example a 5th Elliptic CMOS Gm-C using the proposed transconductors is designed. The results of HSPICE simulation using 1.8V-0.18㎛ CMOS processing parameter shows that the designed filter can be operated at supply voltage of 1.8V and the control range of the cutoff frequency is from 1.5㎒ to3.5㎒.

[1]  Soliman A. Mahmoud,et al.  Low Voltage Rail to Rail CMOS Current Feedback Operational Amplifier and its Applications for Analog VLSI , 2000 .

[2]  Pradip Mandal,et al.  A self-biased high performance folded cascode CMOS op-amp , 1997, Proceedings Tenth International Conference on VLSI Design.

[3]  Ye Wu,et al.  An 860 to 960MHz RFID Reader IC in CMOS , 2007, 2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium.

[4]  A. Chaghi,et al.  A New Method to Extract Reference Currents for Shunt Active Power Filter in Three Phase Four Wire Systems , 2012 .

[5]  Jieh-Tsorng Wu,et al.  A 100-MHz pipelined CMOS comparator , 1988 .

[6]  Mel Bazes,et al.  Two novel fully complementary self-biased CMOS differential amplifiers , 1991 .

[7]  S. I. Cho,et al.  Design of a New High Speed Amplifier Circuit for the Analog Subsystems , 2002 .

[8]  L. Pratap Reddy,et al.  High Dimensional Modeling of Microstrip Hairpin Bandpass Filter Using Artificial Neural Networks , 2012 .

[9]  Ki Hwan Eom,et al.  A Study on the Design of Coaxial Isolator with Filter Circuit , 2011 .

[10]  Peter Aronhime,et al.  Alternative Realizations of CMOS Current Feedback Amplifiers for Low Voltage Applications , 2002 .

[11]  Hadi Sadoghi Yazdi,et al.  Impulsive Noise Suppression of Images Using Adaptive Median Filter , 2010 .

[12]  Charles G. Sodini,et al.  A high-speed CMOS comparator for use in an ADC , 1988 .

[13]  Soliman A. Mahmoud,et al.  Low-Voltage CMOS Current Feedback Operational Amplifier and Its Application , 2007 .

[14]  Gaetano Palumbo,et al.  Low-voltage high-drive CMOS current feedback op-amp , 2005, IEEE Transactions on Circuits and Systems II: Express Briefs.