Re: Something to ponder
From: Spehro Pefhany (speffSNIP_at_interlogDOTyou.knowwhat)
Date: 10/07/04
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Date: Wed, 06 Oct 2004 22:31:58 -0400
On Wed, 06 Oct 2004 09:46:57 -0700, the renowned John Larkin
<jjlarkin@highSNIPlandTHIStechPLEASEnology.com> wrote:
>You can do the reverse: feed back a bit of the ramp voltage into the
>guts of the current source such as to increase the current as the ramp
>runs. This adds a t-squared term to the curve, nearly compensating
>shunt resistance or any other effects that bow the ramp down. I've
>done this with 25 ns ramps.
Nice trick.
>Reminds me of the old RTD linearization trick. Well, sort of.
>John
Sort of.
Best regards,
Spehro Pefhany
-- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
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