[sdiy] Terminating unused pins.

[Seb Francis]

The only exception might be for opamps that aren't stable at unity gain, 
but these aren't really common for audio applications.
Seb


Jim Thompson wrote:
> Thanks to everone for the tips.
> I think I get the picture, as long as were all talking about bi-polar 
> supply opamps.
> Would the same method apply to opamps with a single supply?
> I read the procedure was different for the two types.
>
> Thanks again
>
> Jim
>
>
>> From: Harry Bissell Jr <harrybissell at prodigy.net>
>> To: John Luciani <jluciani at gmail.com>, Jim Thompson 
>> <ifixaudio at hotmail.com>
>> CC: synth-diy at dropmix.xs4all.nl
>> Subject: Re: [sdiy] Terminating unused pins.
>> Date: Mon, 21 Aug 2006 11:16:05 -0700 (PDT)
>>
>> That might exceed the input voltage
>> ranges for some opamps...
>>
>> I like the voltage follower with ground as the
>> non-inverting input
>>
>> H^) harry
>>
>> --- John Luciani <jluciani at gmail.com> wrote:
>>
>> > On 8/21/06, Jim Thompson <ifixaudio at hotmail.com>
>> > wrote:
>> >
>> > > Also I believe the methods are different for
>> > single or dual supply opamps.
>> >
>> > For op-amps tie the +input  to one power supply rail
>> > and the -input  to
>> > the opposite rail. For a single supply (one rail)
>> > you would use ground as
>> > a rail.
>> >
>> > This will guarantee that the output of the op-amp is
>> > in a known state. If you
>> > tie both inputs together an offset change could
>> > change the state of the output.
>> >
>> > (* jcl *)
>> >
>> > --
>> > http://www.luciani.org
>> >
>>
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