Re: Interesting sensor design problem

From: Active8 (reply2group_at_ndbbm.net)
Date: 02/13/05 

Date: Sun, 13 Feb 2005 12:50:52 -0500

On Sun, 13 Feb 2005 17:25:07 +0000 (UTC), Ken Smith wrote:

> In article <luc04q468arn$.dlg@ID-222894.news.individual.net>,
> Active8 <reply2group@ndbbm.net> wrote:
> [...]
>>I don't recall seeing any circuits using transistors to make a
>>better r-r, like you suggest doing with the TIPs. Again, we don't
>>know what accuracy the OP needs at the endpoints, but how perfect
>>can we get?
>
> How much money do you have?
>
> I haven't actually tried the TIP35 but I suspect that you could easily get
> to within 1mV of the rail at a few mA of load current. Using a transistor
> inverted like that gives a quite low saturation voltage.

Where can I find an example of this circuit? 

-- 
Best Regards,
Mike

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