-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Tue, Feb 12, 2008 at 06:32:48PM -0800, GlennM wrote:
> > While on the Pericom website, I stumbled across an excellent 
> > EMI Appnote (#11) that states categorically:
> > 
> > "If there are OpAmps in a design, terminate unused opamps in 
> > dual or quad packs by grounding the positive input to ground, 
> > then connecting the negative input to the output."
> > 
> 
> Check these references, both written primarily for single-supply op amps:
> 
> http://www.maxim-ic.com/appnotes.cfm/an_pk/1957
> http://focus.ti.com/lit/an/slod006b/slod006b.pdf see section 17.7.3, page
> 375 in the PDF. 

Looks to me like if you have a design that must be low power, the best
bet is to avoid having the uncommited op amp in the first place. I
assume the resistor string shouldn't be too high value, two 1M resistors
at 3V would still be 1.5uA leakage, more power draw that the rest of the
circuit might be.

- -- 
http://petertodd.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iD8DBQFHsoNi3bMhDbI9xWQRAj0HAJ9QZNLRyOtGNgCf4BG87g21qrbPawCfbPTk
ds+5NVpsENT1/bWyuAp5v/E=
=yKyb
-----END PGP SIGNATURE-----
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist