LM34 & LM331 Ideas

Paul Schreiber synth1 at airmail.net
Tue Sep 8 10:12:33 CEST 1998


The 3374 has an on-board tempco generator, exactly the same as the 3340.

You need an 4 quadrant multiplier externally, with 0.5% accuracy, to
"replicate" a 3340. This is what I plan to do in the MOTM Dual VCO.

Free schematics with every purchase! (grin).

Paul Schreiber
Synthesis Technology


----------
From: 	Hugo Haesaert[SMTP:sky36919 at skynet.be]
Sent: 	Tuesday, September 08, 1998 6:40 AM
To: 	tomg at vivid.net; synth-diy at mailhost.bpa.nl
Subject: 	Re: LM34 & LM331 Ideas

Hi Tom and List !

Maybe i'm barking up the wrong tree here, but does'nt the cem3374  
have a tempco generator build in, and was the problem not to get the 
input voltages correctly multiplied by a 4 quadrant multiplier ?  
(included On-Chip in the 3340 :) Which introduces instability of it's 
own ...

Any comments ? (Paul Schreiber ? :)

FWIW

Keep 'em oscillating :)

Hugo
=






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