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'[EE]: Op-Amp recommendations?'
2000\12\24@124251 by Rod Phillips

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Hello to all,

Could someone recommend a good, general purpose, single supply (5V) op-amp.
I'm looking for a general use type that would be good to keep on hand for
quick use.  Any input will be appreciated.

                                                                   Rod

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2000\12\24@125743 by Dan Michaels

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At 11:45 AM 12/24/00 -0600, you wrote:
>Hello to all,
>
>Could someone recommend a good, general purpose, single supply (5V) op-amp.
>I'm looking for a general use type that would be good to keep on hand for
>quick use.  Any input will be appreciated.
>

try:

LM324
LM358
LMC6032

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2000\12\24@130305 by rwyoung

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If you don't need high slew-rates or wide bandwith, the Microchip op-amps
have done pretty well for me.  They have singles, duals and quads.  Two
flavors, slow & low power and slower & lower power.

The problem with trying to keep only a single kind of op-amp is that there
will ALWAYS be one spec that just doesn't work for your project.  Ib will be
too high, or the Vos,tempco is too fast or whatever.

Rob Young
spam_OUTrwyoungTakeThisOuTspamieee.org
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

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2000\12\24@140712 by Dan Larson

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I like the LMC660

It has rail-to-rail outputs, though the inputs are not rail-to-rail. It
has worked well for me as a high impedance amp for piezo sensors.

Dan


Rod Phillips wrote:

>
> Hello to all,
>
> Could someone recommend a good, general purpose, single supply (5V) op-amp.
> I'm looking for a general use type that would be good to keep on hand for
> quick use.  Any input will be appreciated.
>
>

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2000\12\24@150300 by Olin Lathrop

face picon face
> Could someone recommend a good, general purpose, single supply (5V)
op-amp.
> I'm looking for a general use type that would be good to keep on hand for
> quick use.  Any input will be appreciated.

I don't know off the top of my head, but you can go to National's site and
do parametric searches on their op amps.


*****************************************************************
Olin Lathrop, embedded systems consultant in Devens Massachusetts
(978) 772-3129, .....olinKILLspamspam@spam@embedinc.com, http://www.embedinc.com

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2000\12\24@205618 by Robert A. LaBudde

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At 11:45 AM 12/24/00 -0600, you wrote:
>Hello to all,
>
>Could someone recommend a good, general purpose, single supply (5V) op-amp.
>I'm looking for a general use type that would be good to keep on hand for
>quick use.  Any input will be appreciated.

LMC660 quad CMOS-input rail-rail output for premium use. They cost about
$1.50 each from Jameco.

Obviously the old standby bipolar LM324 quad can be obtained cheaply (~
$.15-$.25 each), if you can tolerate LM741-type specs.

Other quad CMOS op-amps tend to be pricier.

For more ideas, see the Art of Electronics comparison tables.

Key issues:

1. Rail-rail outputs, so you can utilize full supply. (Most op-amps will
waste 1-2 V on each side, which makes a 5 V supply problematical.)

2. Rail-rail inputs.

3. Bipolar vs. FET vs CMOS inputs. Usually FET or CMOS are more desirable.

4. Package size (single vs dual vs quad).

5. Slew rate.

6. Price.

If you're using a PIC and a circuit board, cost shouldn't be that important
an issue. Therefore you'll get the best general specs and ease of use from
a CMOS-input op-amp. Hence the LMC660 or other equivalent.

================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: ralspamKILLspamlcfltd.com
Least Cost Formulations, Ltd.            URL: http://lcfltd.com/
824 Timberlake Drive                     Tel: 757-467-0954
Virginia Beach, VA 23464-3239            Fax: 757-467-2947

"Vere scire est per causas scire"
================================================================

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2000\12\26@021529 by shb7

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Sorry, I messed up the [EE] tag, so I'm sending this
again...Hi all,


I'm surprised that no one has recommended the LMC648x
(6482 is dual, 6484 is quad) op amps from national. The
dual is about $3 a piece in singles, but they are the
best all-around op-amps I have ever used.


First off, they are completely rail to rail input and
output. Their power consumption is low, they have low
noise (lower than some of the "low-noise" non-rail to
rail op amps), bandwidth at least as good as the 741,
low offset voltage (low enough to rival precision op-
amps), and they are CMOS so they have next to zero
input current (picoamps).


I may seem like a salesman for national, but I am just
a satisfied customer who has used these amps in several
designs now and been very impressed by their
performance. I use them almost exclusively now unless I
really don't care about the performance for some reason
or need very low cost.


Sean


P.S. Merry Christmas to all those die-hards still
checking their piclist email on Christmas :-)

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2000\12\26@104405 by Mark Skeels

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How 'bout the National LMV921/2/4 series? Only available in SMT, though...
Mark

----- Original Message -----
From: "Rod Phillips" <EraseMErphillipspam_OUTspamTakeThisOuTNETINS.NET>
To: <PICLISTspamspam_OUTMITVMA.MIT.EDU>
Sent: Sunday, December 24, 2000 11:45 AM
Subject: [EE]: Op-Amp recommendations?


> Hello to all,
>
> Could someone recommend a good, general purpose, single supply (5V)
op-amp.
{Quote hidden}

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