Low-voltage low-power amplifiers are limited in their dynamic range and bandwidth. The maximum dynamic range is limited by the supply-power and the thermal noise in resistors. To obtain the maximum dynamic range several rail-to-rail input and output stages are designed.
The bandwidth is limited by the low-power condition. To reach the maximum bandwidth as well as a large DC-gain various frequency compensation techniques, such as Parallel, Nested Miller and Multipath Nested Miller Compensation are discussed.
KeywordsSupply Voltage Operational Amplifier Output Stage Bipolar Transistor Current Mirror
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- G. Groenewold, “Optimal Dynamic Range Integrated Continuous-Time Filters”, Ph.D. Thesis, Delft University of Technology, Delft, The Netherlands, 1992.Google Scholar
- J.H. Huijsing and R.J. v.d. Plassche, “Differential Amplifier with Rail-to-Rail Input Capability and Constant Transconductance”, U.S. Appl. No. 4,555,673, Nov. 26, 1985.Google Scholar
- J. Fonderie, M.M. Maris, E.J. Schnitger, J.H. Huijsing, “1-V Operational Amplifier with Rail-to-Rail input and output Ranges”Google Scholar
- R. Hogervorst, R.J. Wiegerink, P.A.L. de Jong, J. Fonderie, R.F. Wassenaar, J.H. Huijsing, “CMOS Low-Voltage Operational Amplifiers with constant-gm Rail-to-Rail input stage”, Proc. IEEE International Symposium on Circuits and Systems, San Diego, May 10–13, 1992, pp. 2876-2879.Google Scholar
- W.C.M. Renirie, J.H. Huijsing, “Simplified Class-AB Control Circuits for Bipolar Rail-to-Rail Output Stages of Operational Amplifiers”, Proc. European Solid-State Circuits Conference, Sept. 21–23, 1992, pp. 183-186.Google Scholar
- R.G.H. Eschauzier, R. Hogervorst, J.H. Huijsing, “A Programmable 1.5 V CMOS Class-AB Operational Amplifier with Hybrid Nested Miller Compensation for 120 dB Gain and 6 MHz UGF”, in Digest IEEE International Solid-State Circuits Conference, February 16–18, 1994, pp. 246-247.Google Scholar
- E.M. Cherry and D.E. Hooper, “Amplifying Devices and Low-Pass Amplifier Design”, John Wiley and Sons Inc., New York, 1988, pp. 690–701.Google Scholar
- J.H. Huijsing, “Multi-Stage Amplifier with Capacitive Nesting for Frequency Compensation”, U.S. Patent, Appl. No. 4,559,502, Dec. 17, 1985.Google Scholar
- J.H. Huijsing and M.J. Fonderie, “Multi-stage amplifier with capacitive nesting and multi-path forward feeding for frequency compensation”, U.S. Patent, Appl. No. 5,155,447, Oct. 4, 1992.Google Scholar
- K. Bult and G.J.G.M. Geelen, “A Fast-Settling CMOS Opamp with 90-dB DC-Gain and 116 MHz Unity-Gain Frequency”, in Digest IEEE International Solid-State Circuits Conference, February 1990, pp. 108-109.Google Scholar
- J.H. Huijsing, R. Hogervorst, J. Fonderie, K.J. de Langen, B.J. van den Dool and G. Groenewold, “Low-Voltage Analog Signal Processing”, Chapter 4 of: Ismail-Fiez: “Analog VLSI Signal and Information Processing”, McGraw-Hill, 1993.Google Scholar