Abstract
In this paper, the analysis of noise and sensitivity for different BP filter designs is observed. Calculation of the voltage noise spectral density, root mean square (RMS) value of the noise voltage, Schoeffler sensitivity and the multi-parameter sensitivity is done for the simply designed (SD) active RC, noise and sensitivity optimized (NO and SO) active RC, operational transconductance amplifiers (OTA-C) and switched capacitor (SC) filter designs. This is observed for the fourth-order Chebyshev band-pass filter, with central frequency fc = 4 kHz, bandwidth 1 kHz and pass-band ripple αmax = −0.1 dB. Cascade of two second-order sections is used for fulfilment realization of all four observing designs. Programming tools, such as MATLAB and SPICE (LTspice), are also used for the analyses. Highlights We used three different designs and optimization (noise and sensitivity) procedure for design and optimize the fourth-order Chebyshev band-pass filter Our results suggest which design is best to use for improving noise and sensitivity of this filter MATLAB and SPICE software were used for calculations and simulations of different band-pass filter designs and analysis of noise and sensitivity
Highlights
We have different ways to realize the same transfer function of the filter
Our results suggest which design is best to use for improving noise and sensitivity of this filter
The noise and sensitivity comparison of different filter designs is analysed in this paper
Summary
We have different ways to realize the same transfer function of the filter. During the design of the filter, we usually need to fulfil specifications on amplitude and phase filter characteristics. Sensitivity shows us a change in amplitude and in phase filter characteristics during the change element values of a filter. This is important because of the decision to choose appropriate tolerance of elements for the application of a filter. Designs, based on OA, OTA-C and SC realization techniques to reduce noise [4] and sensitivity [5,6] in a filter, will be shown. This paper is an extension of the conference paper [4]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
