| DOI LINK: https://doi.org/10.59671/KeeLE |
| Paper ID:KeeLE |
| Volume:32 |
| Issue:11 |
| Title:Design of a Low-Noise and Low-Power Instrumentation Amplifier for Electrocardiogram Acquisition |
| Abstract:The Instrumentation Amplifier is among the most critical components of an ECG recording device. The Instrumentation Amplifier may have been the first component in the analog chain to analyze the ECG data from the human body, determining crucial ECG system parameters including noise and CMRR. Owing to the ECG\'s very limited bandwidth, developing a fully integrated ECG recording system is extremely difficult.This article discusses a concept for a completely integrated instrumentation amplifier with low noise & low power consumption. The Instrumentation Amplifier\'s operational power consumption block is just an Operational Transconductance Amplifier (OTA), that leads in minimal power consumption. The current mirror-based low power OTA was developed in this study using MOSFET sub threshold concept. The circuit\'s transistors are configured to operate throughout the weak inversion region. CMOS 45nm technology is used to develop and simulate the circuit. With 1V supply voltage, the proposed IA has an input referred noise of 1.21 μVrms. |
| Keywords:CMOS technology, Instrumentation amplifier, input referred noise, OTA, power consumption |
| Authors:P.Bindu Swetha, V.J.K.Kishor Sonti |
| Paper PDF Link: View full PDF |