Single-Supply Biquad Chebyshev Low Pass Filter

Problem:
How does a designer make a Biquad Chebyshev Low Pass filter that operates from a Single-Supply?

Solution:
Use the circuit below:



This circuit has 3 dB of ripple. For other values of ripple, contact Texas Instruments Applications.

The designer, if not familiar with the topics, may want to review Coupling Capacitors (Cin in the schematic) and Virtual Grounding (Vcc/2 in the schematic).