Searching \ for 'Op amps' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: techref.massmind.org/techref/power.htm?key=amps
Search entire site for: 'Op amps'.

Truncated match.
PICList Thread
'Op amps'
1998\02\18@004537 by Adi

flavicon
face
I am looking at getting some Op-amps for buffering sensor outputs,
etc. I found there's a lot of them out there now! Years ago I did
a lot with LM324 and TL061, etc. What are good general purpose
op-amps these days for dual and single supply? There must be
something out there now that's no longer prone to latch-up (?) like
the two I mentioned (when the input is driven close to the supply
voltage the output suddenly clamps to the opposite supply voltage).

1998\02\19@030439 by Tom Handley

picon face
  Adi, I like the LMC660 (quad) and LMC662 (dual) for buffering
sensors. It has a rail-rail output swing, 3mv offset, 0.002pA input
bias, and works with single supplies up to 16V or dual supplies.
It's pin compatible with the LM324, LM358, etc. It's faily cheap
and is widely available. See National's web site for more info:

     http://www.national.com/catalog/

  - Tom

At 11:51 PM 2/17/98 +0000, you wrote:
>I am looking at getting some Op-amps for buffering sensor outputs,
>etc. I found there's a lot of them out there now! Years ago I did
>a lot with LM324 and TL061, etc. What are good general purpose
>op-amps these days for dual and single supply? There must be
>something out there now that's no longer prone to latch-up (?) like
>the two I mentioned (when the input is driven close to the supply
>voltage the output suddenly clamps to the opposite supply voltage).
>
>

1998\02\19@114628 by Theresa Schousek

flavicon
face
Tom, anybody:
I'm looking for a good op-amp much like the 662 but with one minor( ok, it's
turning out to be maajor) difference: I need one capable of running down to
3V single supply but maintaining decent rail-rail output, low Iss, and low
cost. Any suggestions?

Brian

{Original Message removed}

1998\02\20@000648 by STEENKAMP [M.ING E&E]

flavicon
picon face
Hi,

> Tom, anybody:
> I'm looking for a good op-amp much like the 662 but with one minor( ok, it's
> turning out to be maajor) difference: I need one capable of running down to
> 3V single supply but maintaining decent rail-rail output, low Iss, and low
> cost. Any suggestions?
>
Another op amp from National that might fit your requirements is the
LMC6484.  Rail to tail input and output downto 3V single supply.  It is
reasonably cheap (about $2.50 for the quad version).  Have a look at
their web-site.
You can also look at Maxim.  They have a lot of these types of op amps.
I know about the MAX4164 which is also a low voltage rail to rail input
and output op amp.  In addition it is also a micro power op amp - making
it ideal for battery operated gizmos.

Niki

1998\02\20@133755 by Tom Handley

picon face
  Brian, Nikki mentioned a National part. Also check out Maxim and Linear
Technology. They have a whole new generation of op-amps that work down to
3V and below. I normally deal with 5-15V in analog designs.

  - Tom

At 11:26 AM 2/19/98 -0500, you wrote:
>Tom, anybody:
>I'm looking for a good op-amp much like the 662 but with one minor( ok, it's
>turning out to be maajor) difference: I need one capable of running down to
>3V single supply but maintaining decent rail-rail output, low Iss, and low
>cost. Any suggestions?
>
>Brian
>
>{Original Message removed}

1998\02\20@151416 by Robert L Smith

flavicon
face
At 10:17 AM 2/20/98 -0800, you wrote:
>   Brian, Nikki mentioned a National part. Also check out Maxim and Linear
>Technology. They have a whole new generation of op-amps that work down to
>3V and below. I normally deal with 5-15V in analog designs.

Burr-Brown has been advertising in this area recently as well.


{Quote hidden}

>>{Original Message removed}

1998\02\21@124206 by Brian Schousek

picon face
Yah, but I sort of shudder when I hear Burr-Brown and, to a lesser extent,
Maxim. For price reasons. I need to find a dual for less than a buck and on
the Maxim CD-ROM their budgetary quotes always feel high.  Anybody have any
experience with where their budgetary quotes fall with respect to end price
paid in the 1k-5k-10k quantities? And to maintain the nebulous contact with
on-topicicity, the central device in this unit is a 12c509 and I would like
to keep it that way (i.e. I don't want to spend more for peripheral
components than the micro.)

Brian
{Original Message removed}

1998\02\22@084514 by Wayne Foletta

flavicon
face
Check out TI and Philips/Signetics - they always have low priced op
amps. You should be able to get one well under 1$ at 1K.
-Wayne Foletta

You wrote:
>
>Yah, but I sort of shudder when I hear Burr-Brown and, to a lesser
extent,
>Maxim. For price reasons. I need to find a dual for less than a buck
and on
>the Maxim CD-ROM their budgetary quotes always feel high.  Anybody
have any
>experience with where their budgetary quotes fall with respect to end
price
>paid in the 1k-5k-10k quantities? And to maintain the nebulous contact
with
>on-topicicity, the central device in this unit is a 12c509 and I would
like
>to keep it that way (i.e. I don't want to spend more for peripheral
>components than the micro.)
>
>Brian

1998\02\22@092723 by wwl

picon face
On Sun, 22 Feb 1998 07:18:04 -0600, you wrote:

{Quote hidden}

I didn't see the original spec - what characteristics do you need for
the op-amp?
If CHEAP is the most important, you can't beat the LM358 - UKP 0.14

    ____                                                           ____
  _/ L_/  Mike Harrison / White Wing Logic / spam_OUTwwlTakeThisOuTspamnetcomuk.co.uk  _/ L_/
_/ W_/  Hardware & Software design / PCB Design / Consultancy  _/ W_/
/_W_/  Industrial / Computer Peripherals / Hazardous Area      /_W_/

More... (looser matching)
- Last day of these posts
- In 1998 , 1999 only
- Today
- New search...