This document discusses active filters and their configurations and frequency responses. It defines different types of filters, including low pass, high pass, band pass, and band stop filters. It also discusses terminology related to filters such as filter gain, bands, critical frequency, and roll-off rates. Finally, it provides examples of the frequency responses of low pass, high pass, band pass and band stop filters.

1. By
Mr. C.R.Shinde
Electrical Engineering Department
Matoshri College of Engineering & Research centre, Nashik

2. Unit 05: Other Analog circuits:-
1. Active filters-Its configuration with frequency response
2. Analysis of first order low pass and high pass filters using OPAMP.
3. IC 555 –construction, working .
4. IC 555 –astable and monostable multi vibrators, Sequence generator
5. voltage regulators using IC78xx, 79xx, LM 317
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3. Active filters-Its configuration with
frequency response.
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4. Content.
1. Introduction.
2. Classification of filter.
3. Terminology of filter.
4. Filter Frequency response.
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5. Introduction.
 A filter is a basically “frequency selective” circuit. It is
designed to pass/block a specific band of frequencies.
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Filter
Analog Filter
Active Filter Passive Filter
Digital Filter

6. Classification Based on their
frequency response characteristics
Filter
Low Pass
Filter
High Pass
Filter
Band Pass
Filter
Band Stop
Filter
All Pass
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7. Terminology of filter.
 Filter Gain
 Bands.
 Critical Frequency.
 3db Frequency.
 Roll-Off Rates.
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8. Low Pass Filter Frequency response.
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9. High Pass Filter Frequency response.
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10. Band Pass Filter Frequency response.
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11. Band Stop Filter Frequency response.
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12. Thank you
Mr. C. R. Shinde
Electrical Engineering Department
Matoshri College of Engineering & Research centre, Nashik
If you have any query, ask me anytime on…… … .. . . .
cshinde58@gmail.com
chandrakant.shinde@matoshri.edu.in
9970031353
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