Limiter / Clipper 2mV

[drizdraz]

I have an application which requires that an audio signal be limited to 2mVpp. After 2mV level, I want the signal to clip. Under 2mV, no clip. I have an opamp in the circuit, and can use this opamp as part of the clipping circuit. When the signal is below 2mV, the clipper circuit must not interact in any way with the signal. I'm looking at a diode clipper, etc.. Does anyone have an opinion on the "best way" to do this?

 

[Mark Tillotson]

Amplify upto to sensible voltage, do the clipping there, then attenuate back? Many opamps have offsets in the range of a few mV so that would immediately cause issues if sticking to low-level for the signal processing.

 

[drizdraz]

Mark, good thought.

 

[opusadat]

It can be possible by using micro controller!!!

 

[olsond3]

What is the source and destination for this 2 mV signal. The source and destination impedance will come into play.

 

[JustAFrog]

Probably not a pertinent solution here, but this can be achieve by adding a DC offset and using a perfect rectifier (both for positive and negative).
The advantage is that the clipping point is voltage controled.