MAX4581

Jun 22, 2010 11 Replies
J

I've had a request to quote the design of a pin-for-pin replacement of the MAX4581.



Not being on the buying side of such stuff, is this really a hard-to-get part?



It's not a terribly difficult thing to design (I did the ON-Semi re-do of the 4051-52-53 series many years ago), but I'm suspicious that I'm being used as a price-reduction tool :-) ...Jim Thompson



-- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at

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| 1962 | I love to cook with wine. Sometimes I even put it in the food.


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M

=A0 =A0 ...Jim Thompson

=A0 =A0| =A0 =A0mens =A0 =A0 |

=A0 | =A0 =A0 et =A0 =A0 =A0|

=A0|

=A0 =A0 =A0 |

Could well be.

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MAX4581&stock=3D1

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Michael

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H

Digikey stocks them

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,not in any significant quanttities. Maxim shows them as still in production as well

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so I think your suspicions are correct.

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J

So if they're $0.63 in 1k quantities... and Jim can spin a design such that they cost, oh, say, $0.33... seems like someone must be using upwards of

100k/year to make it worth the NRE costs? Intriguing...
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M

Maybe an Audio product. 5mhz bandwith is too low for todays video. But the L datasheet mentions DSL, perhaps Telco/STB related.

Cheers

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M

=A0 =A0 ...Jim Thompson

=A0 =A0| =A0 =A0mens =A0 =A0 |

=A0 | =A0 =A0 et =A0 =A0 =A0|

=A0|

=A0 =A0 =A0 |

I think you might die from the boredom of designing the part.

I'm looking at the datasheet. The THD dips around 60hz. That sure looks suspicious, like a 60hz filter was switched in.

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B

Jim Thompson Inscribed thus:

Are these not a second source for the HC74C family.

Best Regards: Baron.
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H

Well if they are still available at Digikey and you can also get them from Newark with a lead time why else would someone want him to do it other then hopeing he will give them a better price.

The part is also listed as still in production from Maxim as well. If it wasnt still in production yea I could understand the request.

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P

And being used as a price-reduction tool is all that bad?

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S

Not if you get paid for your time in preparing a quote.

Best regards, Spehro Pefhany

"it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
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P

"Jim Thompson" schreef in bericht news: snipped-for-privacy@4ax.com...

Hmm... Maxim has a myriad of MAX4581 types for sale,

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so I can hardly imagine there's no one available that meet your customers requirements. Can't get another idea then the the one you already have: Pricing.

petrus bitbyter

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G

Not in the online catalogs for Farnell or RS here.

Pin for pin 405x series? Why not use 'hc405x instead for low voltage?

Grant.

http://bugs.id.au/
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