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

作者：Al Absi Munir Ahmad^*; Hussein Alaa; TaherAbuelma' atti Muhammad

来源：Circuits, Systems, and Signal Processing, 2013, 32(1): 321-331.

DOI：10.1007/s00034-012-9446-6

• Translinear principle
• Current mode
• Four-quadrant analog multiplier
• Squarer
• Inverse function
• Sub-threshold region

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-mu m TSMC CMOS process. Simulation results confirm the functionality of the circuit. The total power consumption is 2.3 mu W, total harmonic distortion is 1.1 %, maximum linearity error is 0.3 % and the bandwidth is 2.3 MHz.

• 出版日期2013-2
• 单位中国石油大学（北京）