Title :
A low-power, low-noise neural-signal amplifier circuit in 90-nm CMOS
Author :
Zarifi, M.H. ; Frounchi, J. ; Farshchi, S. ; Judy, J.W.
Author_Institution :
Microelectronic and Microsensor Research Laboratory, Faculty of Electrical and Computer Engineering, University of Tabriz, Iran
Abstract :
A fully-differential low-power low-noise preamplifier for biopotential and neural-recording applications is presented. This design, which has been simulated in a standard 90-nm CMOS process, consumes 30 μW from a 3-V power supply. The simulated integrated input-referred noise is 2.3 μV over 0.1 Hz to 20 kHz. The amplifier also provides an output swing of ± 0.9 V with a THD of less than 0.1%
Keywords :
Cutoff frequency; Feedback circuits; Laser feedback; Low-noise amplifiers; MOS devices; Neurofeedback; Operational amplifiers; Transconductance; Tunable circuits and devices; Voltage; Algorithms; Amplifiers, Electronic; Electrophysiology; Equipment Design; Neurons;
Conference_Titel :
Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-1814-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2008.4649680
