Embracing local variability to enable a robust high-gain positive-feedback amplifier: Design methodology and implementation
作者： Kareem Ragab , Ranjit Gharpurey , Michael Orshansky
DOI: 10.1109/ISQED.2012.6187487
关键词: Control theory 、 Gain–bandwidth product 、 Amplifier 、 CMOS 、 Voltage 、 Engineering 、 Capacitance 、 Transconductance 、 Redundancy (engineering) 、 Integrated circuit design 、 Electronic engineering
摘要: A novel digital calibration technique based on component redundancy and random diversity (CRRD) is used to enable robust high-gain positive-feedback (PF) amplifiers. Gain enhancement achieved through output conductance cancellation which requires accurate across process, voltage, temperature. CRRD employs a set of redundant elements intentionally exhibiting high local variability, the subset that best cancels amplifier's employed. We develop design methodology rigorously predict: (1) how partition full configuration range between fixed load tunable load, (2) how, for given partition, size elements. prove having sizable coarse essential reaching optimality. apply developed theory 0.18µm CMOS test-chip implementing 6×10 array PF amplifiers CRRD. demonstrate use allows only linear increase size, its associated capacitance, with dB gain improvement, in contrast exponential earlier designs. Gains ninety from three different dies were measured exceeded 64dB 95% samples, up an intrinsic 28.5dB. gain-bandwidth product 186MHz was while consuming 65µA 1.8V supply.
sci-hub.se 参考文章(10)
Jonathan Proesel, Gokce Keskin, Jean-Olivier Plouchart, Lawrence Pileggi, An 8-bit 1.5GS/s flash ADC using post-manufacturing statistical selection custom integrated circuits conference. pp. 1- 4 ,(2010) , 10.1109/CICC.2010.5617410
B. Nauta, A CMOS transconductance-C filter technique for very high frequencies IEEE Journal of Solid-state Circuits. ,vol. 27, pp. 142- 153 ,(1992) , 10.1109/4.127337
M.J.M. Pelgrom, A.C.J. Duinmaijer, A.P.G. Welbers, Matching properties of MOS transistors IEEE Journal of Solid-state Circuits. ,vol. 24, pp. 1433- 1439 ,(1989) , 10.1109/JSSC.1989.572629
M.P. Flynn, C. Donovan, L. Sattler, Digital calibration incorporating redundancy of flash ADCs IEEE Transactions on Circuits and Systems Ii: Analog and Digital Signal Processing. ,vol. 50, pp. 205- 213 ,(2003) , 10.1109/TCSII.2003.811435
S. Ray, Bang-Sup Song, A 13b linear 40MS/s pipelined ADC with self-configured capacitor matching international solid-state circuits conference. pp. 852- 861 ,(2006) , 10.1109/ISSCC.2006.1696125
Janne Maunu, M Pankaala, Joona Marku, Jonne Poikonen, Mika Laiho, Ari Paasio, None, Current source calibration by combination selection of minimum sized devices international symposium on circuits and systems. pp. 549- 552 ,(2006) , 10.1109/ISCAS.2006.1692644
M.E. Schlarmann, S.Q. Malik, R.L. Geiger, Positive feedback gain-enhancement techniques for amplifier design international symposium on circuits and systems. ,vol. 2, ,(2002) , 10.1109/ISCAS.2002.1010917
Lawrence T. Pileggi, Brian Taylor, YuTsun Chien, Xin Li, Adaptive post-silicon tuning for analog circuits: concept, analysis and optimization international conference on computer aided design. pp. 450- 457 ,(2007) , 10.5555/1326073.1326167
Chengming He, Le Jin, Degang Chen, Randy Geiger, None, Robust High-Gain Amplifier Design Using Dynamical Systems and Bifurcation Theory With Digital Postprocessing Techniques IEEE Transactions on Circuits and Systems. ,vol. 54, pp. 964- 973 ,(2007) , 10.1109/TCSI.2007.895513
Gokce Keskin, Jonathan Proesel, Larry Pileggi, Statistical modeling and post manufacturing configuration for scaled analog CMOS custom integrated circuits conference. pp. 1- 4 ,(2010) , 10.1109/CICC.2010.5617625