envelope follower

DuncanK at kochind.com DuncanK at kochind.com
Wed Oct 1 06:22:00 CEST 1997


I heard Analog Devices is developing a new linear chip - SNR-8nn, a.k.a.
the snag remover.  It comes in a TO-3 case; v++ and v-- go to the rails,
while sref (input) is tied to any point in a circuit which has a 'snag'
- the device then shunts the snag to ground, effectively removing it.

You simply use as many of the devices as you have snags in your circuit.

Available models include SNR-805 (5v), SNR-812 (12v), SNR-818 (18v).
Also available is SNR-8nnMIL (mil-spec, for removing military-grade
snags).

Analog is also contemplating design of an SNI-8nn chip - essentially a
snag-injector for testing the snag-rejection factor of prototype
circuits.

You should then be able to order SNR-8nn / SNI-8nn matched pairs, which,
when connected properly (sout of SNI-8nn to sref of SNR-8nn) cancel each
other out completely, thus creating a tiny black hole which sucks your
entire circuit into an alternate dimension where Elvis Presley is still
alive, and creating music on modular synths.
 ----------
From: Josh Rowe
>I haven't thought this through completely, but...
>The output voltage of an analog integrator is frequency dependant.
>The higher the frequency, the lower the peak-peak output voltage.

>So doesn't this mean there is a small snag in the circuit?

>( Of course, small snags are what makes designing anything so much of
>a challenge.)



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