Mitigating the effects of op-amp non-idealities by fractional order notch filter
- Resource Type
- Conference
- Authors
- Mohapatra, Arpit Sourav; Ray, Indrani; Biswas, Karabi
- Source
- 2023 International Conference on Fractional Differentiation and Its Applications (ICFDA) Fractional Differentiation and Its Applications (ICFDA), 2023 International Conference on. :1-5 Mar, 2023
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
General Topics for Engineers
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Q-factor
Three-dimensional displays
Frequency dependence
Capacitors
Notch filters
Tuning
fractional order component
fractional order system
OPAMP non-ideality
notch filter
- Language
Active integer order notch filters (IONF) are prefered over passive notch filters to obtain higher quality factors. For lower notch frequency $(\omega_{n})$ values the op-amps act ideal and do not affect the performance of the filter. However, if the required $\omega_{n}(1kHz\leq\omega_{n}\geq 5kHz)$ is large or very large $(\omega_{n}\geq 5kHz)$ then the effects of the non-idealities of the op-amps start to dominate the response of the filter that causes errors. In an IONF, there is no provisions to compensate these errors. This work would investigate the performance of a fractional order notch filter (FONF) in the presence of the non-idealities of the op-amps at higher frequency. The mentioned frequency range is mostly chosen for removing the noise from audio and video signals.