Lab 2: Active and Passive Filters

Active Low-Pass Filter Circuit Connected to Analog Discovery 2
This lab introduces students to the basic terminology and characteristics of filters such as filter slope, passband, stopband, and cut-off frequency. Students will learn about filter transfer functions for passive and active filters as well as higher-order passive filters and apply their knowledge by simulating and building these circuits. Advanced students can challenge themselves by exploring higher-order active filter implementations (such as Chebyshev and Butterworth) and how these implementations maximize different filter characteristics.
by National Instruments


This is module 2 of 7 in the course, Complementary Labs for Electrical Engineering.


  • Active and Passive Filters Lab Manual



  • Introductory Circuits

Related Resources


These labs prepare students with prerequisite skills.


These labs enable students to apply the skills they learn.

Analog Discovery 2

Gives students access to a 100 MS/s oscilloscope, a logic analyzer, and six other instruments in a pocket-sized lab device.

Multisim Live Premium

Extend circuit design and simulation into the web with this online SPICE circuit simulator that allows anyone on any device to simulate, share, and get ideas from thousands of reference designs.

Required Software

Download Academic Software, Learn About Software Licensing

  • Multisim Live Premium Account
  • Digilent WaveForms 2015


Required Hardware

Purchase Engineering Education Products

  • Analog Discovery 2 - NI Edition
  • Prototyping Breadboard
  • Wires
  • 1 kΩ resistor x 2
  • 10 kΩ resistor
  • 1 uF electrolytic capacitor
  • 0.1 uF ceramic or tantalum capacitor
  • Opamp (OP27)
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