EDN

First-order Butterworth Active Low-pass Filter

Butterworth filter is a type of filter whose frequency response is flat over the passband region. Low-pass filter (LPF) provides a constant output from DC up to a cutoff frequency f(H) and rejects all ...
EDN

Active Low Pass Filter Bode Plot Analysis using Siglent SDS2102X Plus Oscilloscope

In this video, I used the bode plot to analyze the low pass active filter’s behavior in practice. There are not many devices that can calculate and demonstrate the bode plot. I used Siglent SDS2102X ...
Electronics Weekly

Linear single and dual amplifying active low-pass filters

Linear Technology has introduced a family of five single and dual amplifying active low-pass filters that can drive ADCs. LTC6603 is a dual matched programmable 9th order switched capacitor ...
Hackaday

Universal Active Filters: Part 1

Today I am experimenting with a single chip Universal Active Filter, in this case I made a small PCB for the UAF-42 from Texas Instruments. I chose this part in particular as it facilitates setting ...
Hackaday

Universal Active Filters: Part 2

An easy way to conceptualize active filters is thinking about audio speakers. A speaker crossover has a low-pass, high-pass and band-pass effect breaking a signal into three components based upon ...