Look at the Maxim, National Semiconductor, Linear Technology, etc web sites
- there are a pile of voltage references out there. It all depends on what
you want - what voltage. what tolerance, what package.

What do you want to use the precision voltage for? If it's the reference
for an A/D converter, such as on the '877 series, then a 4.096 volt
reference is good, since it gives you a nice integral number of millivolts
per bit (4.096/1024 = 4 mv), which makes your programming easier.

Larry

At 03:52 PM 1/19/2003 -0600, you wrote:
>I've asked this before too, sorry
>
>but what kind of devices do you use to get say, a 2 vdc
>precise source?
>
>is it a 3 pin device, like the 7805?
>
>I need a part number here, I want to stick this in an open
>spot on my pcb
>
>
>
>thanks
>
>--
>http://www.piclist.com hint: The PICList is archived three different
>ways.  See http://www.piclist.com/#archives for details.

Larry Bradley
Orleans (Ottawa), Ontario, CANADA

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.