Title :
A 10 MHz 85 dB dynamic range instrumentation amplifier for electrical impedance tomography
Author :
Yueh-Ching Teng ; Odame, Kofi M.
Author_Institution :
Thayer Sch. of Eng., Dartmouth Coll., Hanover, NH, USA
Abstract :
In this paper, we present an instrumentation amplifier for high speed electrical impedance tomography. The instrumentation amplifier includes a fast acting automatic gain control, which allows it to process a wide dynamic range of input signals with low power consumption and without sacrificing the frame rate of the tomography system. The instrumentation amplifier was designed in a 3.3 V, 180 nm CMOS process. Simulation results show that it has a dynamic range of 85 dB over a 10 MHz bandwidth, with a total power consumption of 3.1 mW.
Keywords :
CMOS integrated circuits; automatic gain control; biomedical equipment; electric impedance imaging; instrumentation amplifiers; CMOS process; dynamic range instrumentation amplifier; fast automatic gain control; frequency 10 MHz; gain 85 dB; high-speed electrical impedance tomography; power consumption; Gain; Gain control; Impedance; Instruments; Noise; Tomography; Transistors;
Conference_Titel :
Biomedical Circuits and Systems Conference (BioCAS), 2014 IEEE
Conference_Location :
Lausanne
DOI :
10.1109/BioCAS.2014.6981805
