CMOS TRANS CONDUCTANCE BASED INSTRUMENTATION AMPLIFIER FOR VARIOUS BIOMEDICAL SIGNAL ANALYSIS
Mr. Milind Gajare1, Dr. D. K. Shedge2
1Research Scholar, Department of Electronics & Telecommunication, AISSMS IOIT Pune, INDIA, milind.gajare@aissmsioit.org
2 Department of Electronics & Telecommunication, AISSMS IOIT Pune, INDIA
dnyandeo.shedge@aissmsioit.org
ABSTRACT
The Trans-conductance operational amplifier’s operating frequencies are removed using feed forward design approaches. Amplifiers with enormous Trans-conductance that operate in the Giga hertz frequency range are now available to design. Several trans-conductance amplifiers are employed in the design of medical and industrial applications to aid in the processing of biomedical signals such as electrocardiographs, electroencephalographs, and electromyograms, among others. The proposed study demonstrates the design of an instrumentation amplifier based on CMOS and the processing of biomedical ECG, EEG, and EMG signals using Trans-conductance operational amplifiers. The CMOS manufacturing technique allows sophisticated circuits to be integrated on a small surface area. Noise reduction, low DC offset, high output impedance, and Common Mode rejection Ratio values are all aspects of the Trans-conductance instrumentation operational amplifiers. Electronic Design and Automation tool with 0.13m CMOS process technology was used for circuit implementation and simulations.
Keywords : Trans-conductance; Instrumentation Amplifier; CMOS Process; Biomedical Signals; Bio-potential Signal; CMRR; Frequency response; Signal Measurement