Research Article
OTA Based 2nd Order Butterworth Filter For Mobile Communication using CMOS Technology
@INPROCEEDINGS{10.4108/eai.16-5-2020.2304039, author={M Vijaya Bharathi and K Akshitha and MG Divyashree and BR Nagakrupa and JK Sindhu}, title={OTA Based 2nd Order Butterworth Filter For Mobile Communication using CMOS Technology}, proceedings={Proceedings of the First International Conference on Advanced Scientific Innovation in Science, Engineering and Technology, ICASISET 2020, 16-17 May 2020, Chennai, India}, publisher={EAI}, proceedings_a={ICASISET}, year={2021}, month={1}, keywords={butterworth filter lowpass filter operational transconductance amplifier ota cmos technology gm-c filter}, doi={10.4108/eai.16-5-2020.2304039} }- M Vijaya Bharathi
K Akshitha
MG Divyashree
BR Nagakrupa
JK Sindhu
Year: 2021
OTA Based 2nd Order Butterworth Filter For Mobile Communication using CMOS Technology
ICASISET
EAI
DOI: 10.4108/eai.16-5-2020.2304039
Abstract
Communication is the process of transmitting knowledge from one person to another. Receivers have a vital role to play in communication. The main role of receivers is to replicate the message signal in electrical form from the wrapped transmitted signal. Receivers accept signals, such as radio waves and convert them into useful form. The type of receiver that is commonly used is the Direct Conversion Receiver (DCR) that translates the signal directly to the baseband frequency. In this paper, we are concentrating on the Low Pass fil-ter to block unwanted signals from mixer stage. A 2nd order Butterworth filter is designed by implementing a active load differential amplifier &a active load common source amplifier, further the operational trans conductance is designed by using the above mentioned two circuits. The designed OTA is implemented with two capacitors at the input stage and at the output stage which makes it a Butterworth Filter.