A Low Voltage and Low Power Current-Mode Analog Computational Circuit

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• 作者：Munir Ahmad Al-Absi (1)
  Alaa Hussein (1)
  Muhammad TaherAbuelma’atti (1)
  
• 关键词：Translinear principle ; Current mode ; Four ; quadrant analog multiplier ; Squarer ; Inverse function ; Sub ; threshold region
• 刊名：Circuits, Systems, and Signal Processing
• 出版年：2013
• 出版时间：February 2013
• 年：2013
• 卷：32
• 期：1
• 页码：321-331
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• 作者单位：Munir Ahmad Al-Absi (1)
  Alaa Hussein (1)
  Muhammad TaherAbuelma’atti (1)
  
  1. Department of Electrical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
  
• ISSN：1531-5878

文摘

A new current-mode analog computational circuit is presented. The circuit can be digitally controlled to produce multiplying, squaring and inverse functions. The design is based on using MOSFETs operating in sub-threshold region to achieve ultra low power dissipation. The circuit is operated from a ±0.75?V DC supply. The proposed circuit has been simulated using Tanner in 0.35-μm TSMC CMOS process. Simulation results confirm the functionality of the circuit. The total power consumption is 2.3?μW, total harmonic distortion is 1.1?%, maximum linearity error is 0.3?% and the bandwidth is 2.3?MHz.