ts-7000
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Re: [ts-7000] Re: noise level on MAX197 on 7250

To: <>
Subject: Re: [ts-7000] Re: noise level on MAX197 on 7250
From: "Michael" <>
Date: Tue, 18 Mar 2008 09:53:08 -0700
> > Looking at the TS-7250 schematic, it seems there isn't any external
> > capacitance. The datasheet (as I'm sure you've seen) suggests 4.7uF
> > at REF (pin26) and .01uF at REFADJ. Schematic shows .1 and 4.7uF
> > on REFADJ.
>
> Yes , I'd looked into that. I actually think this is a TS
> documentation error since there is a capacitor on pin 26 , but since
> it is a microscopic smc device I can't tell its value. It seems too
> small to be a 4.7uF though!

I've forwarded this report to our hardware engineer and indeed there was a 
documentation error.  To summarize their response, "the MAX197 ADC does have 
a 4.7 uF cap on its pin 26."  The TS7250 schematic available on the web site 
has been updated with this correction.


 ______   Best Regards,
|__  __/                  Michael Schmidt
   ||                   Software Engineer
   ||echnologic Systems (EmbeddedARM.com)
   || (480)    16610 East Laser Drive #10
   |/ 837-5200   Fountain Hills, AZ 85268
       http://oz.embeddedarm.com/~michael 


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