Open AccessDesign of Low Power Neuro-amplifier Circuit with Miller Compensation Technique for Biomedical Neuro-implantable Devices
Author(s) -
Kriti Dwivedi,
Aparna Gupta,
Ritika Oberoi,
Ribu Mathew
Publication year - 2021
Publication title -
aijr proceedings
Language(s) - English
Resource type - Conference proceedings
ISSN - 2582-3922
DOI - 10.21467/proceedings.114.14
Subject(s) - operational transconductance amplifier , operational amplifier , current feedback operational amplifier , amplifier , direct coupled amplifier , computer science , frequency compensation , electronic engineering , instrumentation amplifier , electrical engineering , differential amplifier , bandwidth (computing) , engineering , telecommunications
Neuro-amplifiers form an integral part of biomedical implantable devices. In this paper, we design a neuro-amplifier circuit with Miller compensation capacitor. The neuro-amplifier design is based on operational transconductance amplifier (OTA) with an active load. In this work, performance of the neuro-amplifier is enhanced by incorporating the Miller compensation technique. Design and simulation of the neuro-amplifier circuit is performed using SPICE simulation software. Body biasing and feedback techniques are imparted to optimize the circuit performance. Simulation results show that the neuro-amplifier circuit has a mid-frequency gain and 3-dB bandwidth of 48dB, and 16kHzrespectively.