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http://dx.doi.org/10.4218/etrij.11.0110.0465

Design of Two-Stage Class AB CMOS Buffers: A Systematic Approach  

Martin, Antonio Lopez (Department of Electrical and Electronic Engineering, Public University of Navarra)
Miguel, Jose Maria Algueta (Department of Electrical and Electronic Engineering, Public University of Navarra)
Acosta, Lucia (Department of Electrical and Computer Engineering, University of Seville)
Ramirez-Angulo, Jaime (Department of Electrical and Computer Engineering, New Mexico State University)
Carvajal, Ramon Gonzalez (Department of Electrical and Computer Engineering, University of Seville)
Publication Information
ETRI Journal / v.33, no.3, 2011 , pp. 393-400 More about this Journal
Abstract
A systematic approach for the design of two-stage class AB CMOS unity-gain buffers is proposed. It is based on the inclusion of a class AB operation to class A Miller amplifier topologies in unity-gain negative feedback by a simple technique that does not modify quiescent currents, supply requirements, noise performance, or static power. Three design examples are fabricated in a 0.5 ${\mu}m$ CMOS process. Measurement results show slew rate improvement factors of approximately 100 for the class AB buffers versus their class A counterparts for the same quiescent power consumption (< 200 ${\mu}W$).
Keywords
Analog integrated circuits; CMOS buffer; CMOS voltage follower; quasi-floating gate;
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1 C.-W. Lu, Y.-C. Shen, and M.-L. Sheu, "A High-Driving Class- AB Buffer Amplifier with a New Pseudo Source Follower," Proc. IFIP Int. Conf. VLSI, Atlanta, USA, Oct. 2007, pp. 105-109.
2 A. Torralba et al., "Compact Low-Voltage Class AB Analogue Buffer," Electron. Lett., vol. 42, no. 3, Feb. 2006, pp. 152-154.   DOI   ScienceOn
3 G. Xing, S.H. Lewis, and T.R. Viswanathan, "Self-Biased Unity- Gain Buffers with Low Gain Error," IEEE Trans. Circuits Syst. II, vol. 56, no. 1, Jan. 2009, pp. 36-40.   DOI
4 Y. Haga and I. Kale, "Class AB Rail-to-Rail CMOS Buffer with Bulk-Driven Super Followers," Proc. European Conf. Circuit Theory and Design, Antalya, Turkey, 2009, pp. 695-698.
5 J. Ramirez-Angulo et al., "Low Voltage Differential Input Stage with Improved CMRR and True Rail-to-Rail Common-Mode Input Range," IEEE Trans. Circuits Syst. II, vol. 55, no. 12, Dec. 2008, pp. 1229-1233.   DOI
6 A.J. Lopez-Martin et al., "Low-Voltage Super Class AB CMOS OTA Cells with Very High Slew Rate and Power Efficiency," IEEE J. Solid-State Circuits, vol. 40, no. 5, May 2005, pp. 1068- 1077.   DOI
7 J. Ramirez-Angulo et al., "Very Low-Voltage Analog Signal Processing Based on Quasi-Floating Gate Transistors," IEEE J. Solid State Cir., vol. 39, no. 3, Mar. 2004, pp. 434-442.   DOI   ScienceOn
8 M. Bikumandla et al., "Biasing CMOS Amplifiers Using MOS Transistors in Subthreshold Region," IEICE Electron. Expr., vol. 1, no. 12, Sept. 2004, pp. 339-345.   DOI
9 J. Ramirez-Angulo et al., "A Free but Efficient Low-Voltage Class AB Two-Stage Operational Amplifier," IEEE Trans. Circuits Syst. II, vol. 53, no. 7, July 2006, pp. 568-571.   DOI
10 J. Ramirez-Angulo et al., "Class-AB Fully Differential Voltage Followers," IEEE Trans. Circuits Syst. II, vol. 55, no. 2, Feb. 2008, pp. 131-135.   DOI
11 A.J. Lopez-Martin et al., "Power-Efficient Class AB CMOS Buffer," Electron. Lett., vol. 45, no. 2, Jan. 2009, pp. 89-90.   DOI   ScienceOn
12 A. Torralba et al, "Compact Low-Voltage Class-AB Analogue Buffer," Electron. Lett., vol. 42, no. 3, Feb. 2006, pp. 152-154.   DOI   ScienceOn
13 R. van Dongen and V. Rikkink, "A 1.5 V class AB CMOS Buffer Amplifier for Driving Low-Resistance Loads," IEEE J. Solid- State Circuits, vol. 30, no. 12, Dec. 1995, pp. 1333-1338.   DOI   ScienceOn
14 M.D. Pardoen and M.G. Degrauwe, "A Rail-to-Rail Input/Output CMOS Power Amplifier," IEEE J. Solid-State Circuits, vol. 25, no. 2, Apr. 1990, pp. 501-504.   DOI   ScienceOn
15 F. Op't Eynde et al., "A CMOS Large Swing Low-Distortion Three-Stage Class AB Power Amplifier," IEEE J. Solid-State Circuits, vol. 25, Feb. 1990, pp. 265-273.   DOI   ScienceOn
16 J.G. Kenney et al., "An Enhanced Slew Rate Source Follower," IEEE J. Solid State Cir., vol. 30, no. 2, Feb. 1995, pp. 144-146.   DOI   ScienceOn
17 J. Ramirez-Angulo et al., "A New Family of Very Low-Voltage Analog Circuits Based on Quasi-Floating-Gate Transistors," IEEE Trans. Cir. Syst. II, vol. 50, no. 5, May 2003, pp. 214-220.   DOI   ScienceOn
18 C.-W. Lu and K.-J. Hsu, "A Large-Swing High-Driving Low- Power Class-AB Buffer Amplifier Employing Adaptive-Gain Error Amplifiers," Proc. 6th Int. Conf. Devices Circuits Syst., Playa del Carmen, Mexico, Apr. 2006, pp. 243-246.
19 S.L. Wong and C.A.T. Salama, "An Efficient CMOS Buffer for Driving Large Capacitive Loads," IEEE J. Solid State Circuits, vol. 21, no. 3, June 1986, pp. 464-469.   DOI
20 F. You, S.H.K. Embabi, and E. Sanchez-Sinencio "Low-Voltage Class AB Buffers with Quiescent Current Control," IEEE J. Solid State Circuits, vol. 33, no. 6, June 1998, pp. 915-920.   DOI   ScienceOn