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LM311: Equation for MFB Bandpass Filter in Active Filter Design Techniques

Part Number: LM311


Tool/software:

Hello,

This document:

Chapter 16
Active Filter Design Techniques
Literature Number SLOA088
Excerpted from
Op Amps for Everyone
Literature Number: SLOD006A

On page 16-31 the equation for a MFB Bandpass filter is given. It belongs to Figure 16-34 on the same page. The equation is not numbered.

There is an error in the equation. The term ωm (omega_m) should not appear in the equation. If all occurrences are removed the equation is correct for this filter.

Kind regards

Johannes Linkels