Title :
Low-noise low-power true logarithmic amplifier for neural recording applications
Author :
Derafshi, Zahra Haddad ; Frounchi, Javad
Author_Institution :
Microelectron. & Microsensor Lab., Univ. of Tabriz, Tabriz, Iran
fDate :
Nov. 30 2010-Dec. 2 2010
Abstract :
A low-power low-noise logarithmic preamplifier for biopotential and neural recording application is presented. The logarithmic amplifier based on a True Logarithmic Amplifier technique which has been simulated in a UMC standard 90-nm 1P9M CMOS process consumes 11μW from a 1.2V power supply. The simulated input referred noise is 6.7μV over 0.1 Hz to 20 kHz.
Keywords :
CMOS integrated circuits; bioelectric potentials; biomedical electrodes; biomedical electronics; biomedical measurement; neurophysiology; preamplifiers; UMC standard 1P9M CMOS process; biopotential recording applications; frequency 0.1 Hz to 20 kHz; input referred noise; low noise logarithmic preamplifier; low power logarithmic preamplifier; neural recording applications; power 11 muW; true logarithmic amplifier; voltage 1.2 V; voltage 6.7 muV; CMOS integrated circuits; Gain; Limiting; Neurons; Noise; Transfer functions; Transistors;
Conference_Titel :
Biomedical Engineering and Sciences (IECBES), 2010 IEEE EMBS Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-7599-5
DOI :
10.1109/IECBES.2010.5742266
