Title :
Integrated Transimpedance Amplifiers Dedicated to Low-Noise and Low-Power Biomedical Applications
Author :
Kamrani, Ehsan ; Chaddad, Ahmad ; Lesage, Frederic ; Sawan, Mohamad
Author_Institution :
Electr. Eng. Dept., Polystim Neurotechnologies Lab., Montreal, QC, Canada
Abstract :
This paper addresses the application of transimpedance amplifier (TIA) front-ends in biomedical imaging. Different topologies are studied and characterized, then the most appropriate structures are introduced. Three new TIA front-ends are proposed and implemented using standard submicron CMOS technology. The implemented TIA front-ends offer high gain-bandwidth product (GBW), lowpower consumption (<;1mW), high-transimpedance gain (up to 200MV/A), tunable bandwidth (0.1kHz-1GHz) and very low input and output noise (~few fA/vHz and few μV/vHz).
Keywords :
CMOS integrated circuits; biomedical imaging; operational amplifiers; topology; TIA front ends; bandwidth 0.1 kHz to 1 GHz; biomedical imaging; integrated transimpedance amplifiers; low noise biomedical application; low power biomedical application; standard submicron CMOS technology; topology; Bandwidth; Biomedical imaging; CMOS integrated circuits; CMOS technology; Impedance; Noise; Analog Integrated Biomedical Circuits and Systems; Biomedical imaging; Low-Noise; Low-Power; Transimpedance amplifier (TIA); fNIR;
Conference_Titel :
Biomedical Engineering Conference (SBEC), 2013 29th Southern
Conference_Location :
Miami, FL
Print_ISBN :
978-1-4799-0624-6
DOI :
10.1109/SBEC.2013.11
