Opamp wanted

[Bearplug Bearplug Bearplug]

I need a single/dual opamp for an audio buffer stage in a DIP-8 package.
Pinout is flexible, supply is +/- 18V. It has a drive capability similar
to NE5534/5532, but with FET input. Availability from Digikey or Mouser
and low cost a plus.

Suggestions? TIA.

Regards,
b
B

 

[Phil Allison]

"Bearplug Bearplug Bearplug"

I need a single/dual opamp for an audio buffer stage in a DIP-8 package.
Pinout is flexible,

** All 8 pin DIL dual op-amps use the same pin out.

supply is +/- 18V. It has a drive capability similar
to NE5534/5532, but with FET input.

** A supply of +/- 18 volts is really too high for most op-amps -
particularly the NE5534 /32 types.

Life will be short if you insist on that voltage.

The TL072 meets the spec you posted.

What do YOU imagine is so special about the " drive capability " of the
5534 or 5532 ??

Audiophool bullshit aside.




..... Phil

 

[Bearplug Bearplug Bearplug]

Date: Mon, Sep 7, 2009, 8:37pm (PDT+17) From: [email protected]
(Phil Allison)

** A supply of +/- 18 volts is really
too high for most op-amps -
particularly the NE5534 /32 types.

Life will be short if you insist on that
voltage.

I see it routinely used. Don't know about mortality data. Anyhow, I'm
trying to avoid the 5534/32. The opamp in this spot is a non-inverting
buffer fed by a 50K pot. I'd like to not load down the pot, and avoid an
input cap.

The TL072 meets the spec
you posted.

It'd be fine, except the 5534/32 is spec'd for 10V out into much lower
loads. The one in question is a tone control network with about 1K input
Z.

What do YOU imagine is so special
about the " drive capability " of the
5534 or 5532 ??

Audiophool bullshit aside.

Adequate current drive for a nasty load. My audiophool instincts rule
elsewhere.

Regards,
b
B.

 

[Phil Allison]

"Bearplug Bearplug Bearplug"
Phil Allison

**A supply of +/- 18 volts is really
too high for most op-amps -
particularly the NE5534 /32 types.

Life will be short if you insist on that
voltage.

I see it routinely used.


** No you fucking don't.

Don't know about mortality data.

** Don't know much - do ya ??

Anyhow, I'm trying to avoid the 5534/32.

** Yawnnnnnnn....

The opamp in this spot is a non-inverting
buffer fed by a 50K pot. I'd like to not load down the pot, and avoid an
input cap.

**The TL072 meets the spec you posted.

It'd be fine, except the 5534/32 is spec'd for 10V out into much lower
loads.

** No it is not.

The one in question is a tone control network with about 1K input Z.


** No problem for a TL072

- it will drive 1kohms to full out.

What do YOU imagine is so special
about the " drive capability " of the
5534 or 5532 ??

Audiophool bullshit aside.

Adequate current drive for a nasty load.

** 1kohms is not a "nasty" load.

My audiophool instincts rule elsewhere.

** Gobbledegook.



...... Phil

 

[Rich Grise]

"]
[/QUOTE]
Holy Crap! There's still "Web-TV"??????

I need a single/dual opamp for an audio buffer stage in a DIP-8 package.
Pinout is flexible, supply is +/- 18V. It has a drive capability similar
to NE5534/5532, but with FET input. Availability from Digikey or Mouser
and low cost a plus.

Suggestions? TIA.

TL082?

Have Fun!
Rich

 

[Jamie]

I need a single/dual opamp for an audio buffer stage in a DIP-8 package.
Pinout is flexible, supply is +/- 18V. It has a drive capability similar
to NE5534/5532, but with FET input. Availability from Digikey or Mouser
and low cost a plus.

Suggestions? TIA.

Regards,
b
B

TL081ACP
at http://www.mouser.com

 

[GregS]

Hmm, does the opa134 series go to +/-18V?

Yep, but you have to limit signal by 5 volts total.

http://focus.ti.com/lit/ds/symlink/opa2134.pdf

 

[Bearplug Bearplug Bearplug]

Date: Tue, Sep 8, 2009, 9:34pm (PDT+7) From: [email protected]
(Rich Grise)
"]
Holy Crap! There's still
"Web-TV"??????[/QUOTE]

I'm the last surviving Webtv subscriber, now residing in the Cincinnati
Zoo. My daily diet is pureed bananas, sunflower seeds, and the
occasional human finger.

Soon the curtain will fall on my brief role as an evolutionary step.

I flung doo, but dreamt of flying.