A high-precision current-mode multifunction analog cell suitable for computational signal processing

Abstract In this paper, a high linear, low-voltage two-quadrant current squarer as multifunction analog cell, is presented. To implement the squarer circuit, translinear loops with matched NMOS transistors operating in weak inversion region are used. The proposed cell is used as a basic building block for current-mode computational analog functions such as rectifier (absolute-value), multi-input vector summation and exponential function generator. We perform post-layout plus Monte Carlo simulations of the presented functions with 0.18 μm (level-49 parameters) TSMC CMOS technology that prove their superiority over some other advanced works and robustness against PVT (process, voltage and temperature) variations.

[1]  Eric A. Vittoz,et al.  Analog VLSI signal processing: Why, where, and how? , 1994, J. VLSI Signal Process..

[2]  Hamed Sajjadi-Kia.  An analog cell and its applications in analog signal processing , 2011 .

[3]  Christofer Toumazou,et al.  Analogue IC design : the current-mode approach , 1993 .

[4]  Sandeep K. S. Gupta,et al.  Research challenges in wireless networks of biomedical sensors , 2001, MobiCom '01.

[5]  Tohid Aghaei,et al.  A new strategy to design low power translinear based CMOS analog multiplier , 2019, Integr..

[6]  Barrie Gilbert.  The current-mode muddle , 2018 .

[7]  Spyridon Vlassis.  CMOS current-mode pseudo-exponential function circuit , 2001 .

[8]  Jan M. Rabaey,et al.  Limitations and challenges of computer-aided design technology for CMOS VLSI , 2001, Proc. IEEE.

[9]  S. Vlassis,et al.  An On-Chip Linear, Squaring, Cubic and Exponential Analog Function Generator , 2019, IEEE Transactions on Circuits and Systems I: Regular Papers.

[10]  Seyed Javad Azhari,et al.  Ultra low-power low-voltage FGMOS based-configurable analog block for current-mode fractional-power functions , 2017, Microelectron. J..

[11]  Seyed Javad Azhari,et al.  A new current-mode computational analog block free from the body-effect , 2019, Integr..

[12]  Cheng-Chieh Chang,et al.  Current-mode full-wave rectifier and vector summation circuit , 2000 .

[13]  Cheng-Chieh Chang,et al.  A CMOS square-law vector summation circuit , 1996 .

[14]  Seyed Javad Azhari,et al.  Sub-threshold MOS Translinear Principle Based-Analog Cell Suitable for Current-Mode Signal Processing , 2019, 2019 27th Iranian Conference on Electrical Engineering (ICEE).

[15]  Seyed Javad Azhari,et al.  A MOS translinear cell-based configurable block for current-mode analog signal processing , 2017 .

[16]  Mostafa Shaterian,et al.  Synthesis of a reconfigurable analog vector-sum circuit into the MTL-Based configurable blocks , 2018, Microelectron. J..

[17]  Paul E. Hasler,et al.  A MITE-Based Translinear FPAA , 2012, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.

[18]  Cheng-Chieh Chang,et al.  Current-mode pseudo-exponential circuit with tunable input range , 2000 .

[19]  Sudhanshu Maheshwari,et al.  Current-Mode Precision Full-Wave Rectifier Circuits , 2017, Circuits Syst. Signal Process..

[20]  Maneesha Gupta,et al.  Low-voltage FGMOS based analog building blocks , 2011, Microelectron. J..

[21]  Seyed Javad Azhari,et al.  Low-Power High-Speed Analog Multiplier/Divider Based on a New Current Squarer Circuit , 2018 .

[22]  Andreas G. Andreou,et al.  Current-mode subthreshold MOS circuits for analog VLSI neural systems , 1991, IEEE Trans. Neural Networks.

[23]  Mostafa Shaterian,et al.  An MTL-Based Configurable Block for Current-Mode Nonlinear Analog Computation , 2013, IEEE Transactions on Circuits and Systems II: Express Briefs.

[24]  Tayebeh Ghanavati Nejad,et al.  A New Two-Quadrant Squarer/Divider Circuit for true RMS-to-DC converters in MOS technology , 2012 .

[25]  Christopher M. Twigg,et al.  Configurable analog signal processing , 2009, Digit. Signal Process..

[26]  Seyed Javad Azhari,et al.  CMOS design of computational current-mode static and dynamic functions based on analog translinear cell , 2018, Comput. Electr. Eng..

[27]  Muhammad Taher Abuelma'atti,et al.  A Low Voltage and Low Power Current-Mode Analog Computational Circuit , 2013, Circuits Syst. Signal Process..

[28]  Maneesha Gupta,et al.  Low-voltage low-power high performance current mode fullwave rectifier , 2017, Microelectron. J..

[29]  Jordi Madrenas,et al.  A Translinear, Log-Domain FPAA on Standard CMOS Technology , 2012, IEEE Journal of Solid-State Circuits.

[30]  Iluminada Baturone,et al.  Extending the functionality of a flexible current-mode CMOS circuit , 1995 .

[31]  Sihwan Kim,et al.  A Programmable and Configurable Mixed-Mode FPAA SoC , 2016, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.

[32]  Shahram Minaei,et al.  A new low-power current-mode MOS only versatile precision rectifier , 2018 .