CMOS current mirror with enhanced input dynamic range

A novel CMOS cascode current mirror configuration with enhanced input dynamic range is presented. The proposed mirror circuit combines the advantages of wide input swing, wide output swing and large output resistance capability, which make it attractive for practical application. Based on 0.18 µm MOS model parameters, HSPICE simulation results show that the input current ranges from 1 µA to 1 mA with large bandwidth for the proposed circuit. The simulation results confirm the theoretical prediction. Copyright © 2009 John Wiley & Sons, Ltd.

[1]  W. Guggenbuhl,et al.  A high-swing, high-impedance MOS cascode circuit , 1990 .

[2]  George Souliotis,et al.  Current-mode filters based on current mirror arrays , 2008 .

[3]  Maneesha Gupta,et al.  Low voltage current mirrors with enhanced bandwidth , 2009 .

[4]  Hakan Kuntman,et al.  Limitations on input signal level in current-mode active-RC filters using CCIIs , 1996 .

[5]  A. Wang,et al.  Modeling and sizing for minimum energy operation in subthreshold circuits , 2005, IEEE Journal of Solid-State Circuits.

[6]  Chen Zhiliang,et al.  Low voltage self-biasing reference circuits , 2001, ASICON 2001. 2001 4th International Conference on ASIC Proceedings (Cat. No.01TH8549).

[7]  Lei Zhang,et al.  Circuit Design and Verification of On-Chip Femto-Ampere Current Mode Circuit Using 0.18/spl mu/m CMOS Technology , 2006, 2006 8th International Conference on Solid-State and Integrated Circuit Technology Proceedings.

[8]  Samir Ben Salem,et al.  A high performances CMOS CCII and high frequency applications , 2006 .

[9]  Alfonso Carlosena,et al.  1.5-V MOS translinear loops with improved dynamic range and their applications to current-mode signal processing , 2003, IEEE Trans. Circuits Syst. II Express Briefs.

[10]  Sudhanshu Shekhar Jamuar,et al.  A Current Mirror for Low Voltage, High Performance Analog Circuits , 2003 .

[11]  Gordon W. Roberts,et al.  High-swing MOS current mirror with arbitrarily high output resistance , 1992 .

[12]  Sudhanshu Shekhar Jamuar,et al.  Low voltage analog circuit design techniques , 2002 .

[13]  Jaime Ramírez-Angulo.  Low voltage current mirrors for built-in current sensors , 1994, Proceedings of IEEE International Symposium on Circuits and Systems - ISCAS '94.

[14]  K. Tanno,et al.  Low voltage and low frequency current mirror using a two-MOS subthreshold op amp , 1996 .

[15]  F. N. Trofimenkoff,et al.  A wide dynamic range continuously adjustable CMOS current mirror , 1996 .

[16]  Erik Bruun,et al.  Dynamic range of low-voltage cascode current mirrors , 1995, Proceedings of ISCAS'95 - International Symposium on Circuits and Systems.