Low cost OP 279/296 replacement?

[Bob Martin]

I have a circuit specifying an OP 279 or OP 296 precision low power
Op Amp. Unfortunately, these cost $20 here, and I need dozens.

Can anyone advise what would be the best substitute, compromised
performance acknowleged, at around a third to a quarter of the cost?

Many thanks,

Bob

 

[Fred Bloggs]

Bob Martin wrote:

I have a circuit specifying an OP 279 or OP 296 precision low power
Op Amp. Unfortunately, these cost $20 here, and I need dozens.

Can anyone advise what would be the best substitute, compromised
performance acknowleged, at around a third to a quarter of the cost?

Many thanks,

Bob

DigiKey shows the OP 279 at $2.68 single quantities- an AD part- single
supply high current output...

 

[Walter Harley]

"Bob Martin" <martinb@link.com> wrote in message
news:n3tkb0d9gqf3vh5o9mas5s6n7pi8a0k0uo@4ax.com...

I have a circuit specifying an OP 279 or OP 296 precision low power
Op Amp. Unfortunately, these cost $20 here, and I need dozens.

Can anyone advise what would be the best substitute, compromised
performance acknowleged, at around a third to a quarter of the cost?

Maybe if you tell us what the circuit is and what its precision requirements
are... In lieu of that information, it's hard to imagine how anyone could
give a useful answer, beyond "hop onto a mfr web site and use the parametric
search to narrow down your options."

 

[Roger Gt]

"Walter Harley" <walterh@cafewalterNOSPAM.com> wrote in message
news:c9g85v$vvg$0@216.39.172.65...
: "Bob Martin" <martinb@link.com> wrote in message
: news:n3tkb0d9gqf3vh5o9mas5s6n7pi8a0k0uo@4ax.com...
: > I have a circuit specifying an OP 279 or OP 296 precision low
power
: > Op Amp. Unfortunately, these cost $20 here, and I need dozens.
: >
: > Can anyone advise what would be the best substitute,
compromised
: > performance acknowledged, at around a third to a quarter of
the cost?
:

These are relatively cheap amplifiers. Digikey 100 they are
$1.66 ea.
One is listed at $2.68

You can order them on line and the shipping cost can't be the
difference!

 

[Chaos Master]

Bob Martin code name martinb@link.com grunts this:

I have a circuit specifying an OP 279 or OP 296 precision low power
Op Amp. Unfortunately, these cost $20 here, and I need dozens.

Can anyone advise what would be the best substitute, compromised
performance acknowleged, at around a third to a quarter of the cost?

Any op-amp with similar or better ratings as OP 279/OP 296 may do.

[]s
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Posting from Brazil! | drowning in you
Win 98 + BB4Win | I'm falling forever,
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---------------------. -- Evanescence, "Going Under"

 

[Roger Gt]

"Walter Harley" <walterh@cafewalterNOSPAM.com> wrote in message
news:c9g85v$vvg$0@216.39.172.65...
: "Bob Martin" <martinb@link.com> wrote in message
: news:n3tkb0d9gqf3vh5o9mas5s6n7pi8a0k0uo@4ax.com...
: > I have a circuit specifying an OP 279 or OP 296 precision low
power
: > Op Amp. Unfortunately, these cost $20 here, and I need dozens.
: >
: > Can anyone advise what would be the best substitute,
compromised
: > performance acknowledged, at around a third to a quarter of
the cost?
:

At Digikey, the OP296 is $2.21 in quantities of 100, 1 is 3.56

Noted that these are very different amps. The OP279 is capable of
80 mA out, the OP296 is 4 Ma max! Very low power for the OP296,
but not so for the OP279.

Good luck.