A low voltage and low power current-mode field programmable analog computational unit

Author

Al-Absi, Munir A. ; Hussein, Ahmed ; Abuelma´atti, Muhammad Taher

Author_Institution

Dept. of Electr. Eng., King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia

fYear

2014

fDate

17-20 Feb. 2014

Firstpage

51

Lastpage

54

Abstract

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

Keywords

CMOS analogue integrated circuits; analogue integrated circuits; biomedical electronics; current-mode circuits; field programmable analogue arrays; harmonic distortion; inverse problems; multiplying circuits; power consumption; DC supply; MOSFETs; TSMC CMOS process; Tanner; bandwidth 2.3 MHz; current-mode analog computational unit; digital programming; inverse functions; low power current-mode field programmable analog computational unit; low voltage current-mode field programmable analog computational unit; maximum nonlinearity error; multiplying functions; power 2.3 muW; size 0.35 mum; squaring functions; subthreshold region; total harmonic distortion; total power consumption; ultralow power dissipation; voltage 0.75 V; Current-mode circuits; Equations; Layout; Mathematical model; Microwave filters; Optical filters; Simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering (MECBME), 2014 Middle East Conference on

Conference_Location

Doha

Type

conf

DOI

10.1109/MECBME.2014.6783204

Filename

6783204