Spehro Pefhany wrote:
On Wed, 20 Jun 2007 00:26:21 -0400, the renowned Chuck Harris
wrote:

Hi,

Does anyone have a favorite, readily available, dual opamp with the following characteristics:

1) single supply
2) output swings to either rail
3) input swings to gnd
4) 1458 pin out
5) low offset and drift


and most importantly,

6) well behaved (no latch up, spurious oscillations, ...)

Basically, I need a better 1458. Speed and slew rate are of
no real consequence.

I've been looking for one, and the selector guides just don't seem to
work very well.

Thanks!

-Chuck

LT1013 meets most of your specs (output doesn't swing very close to
the positive rail ,and input CM range also does not include the
positive rail).

The LT1013 will work ok in this application, but I would like to be
able to get as close as I can to a full 5V swing on a 5V supply. This
application is to provide some gain enhancement for the A-to-D converters
in a 5v PIC circuit I was designing. I don't want to lose too many of
the codes due to opamp limitations.

Most of the R-R op-amps won't handle very high supply voltages- eg.
LMV822 can only handle 5.5V from + rail to - rail (so +/-3.3 is too
much for it).

That should be ok. I forgot to mention the application was for a
5V supply.

Mostly, I was interested in what other folks favorites were today.
I tend to get into a rut and order the same old parts over and over
again.

Thanks for the info.

-Chuck