MAX4581
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From: miso on 23 Jun 2010 03:46 On Jun 22, 4:40 pm, Jim Thompson <To-Email-Use-The-Envelope-I...(a)On-My- Web-Site.com> wrote: > 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 athttp://www.analog-innovations.com| 1962 | > > I love to cook with wine. Sometimes I even put it in the food. 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.
From: baron on 23 Jun 2010 04:12 Jim Thompson Inscribed thus: > 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 Are these not a second source for the HC74C family. -- Best Regards: Baron.
From: Hammy on 23 Jun 2010 06:19 On Tue, 22 Jun 2010 19:07:39 -0700, "Joel Koltner" <zapwireDASHgroups(a)yahoo.com> wrote: > >"Hammy" <spam(a)spam.com> wrote in message >news:vmp226ldfmblm2g73cocjoeocrs6n8fefc(a)4ax.com... >> so I think your suspicions are correct. > >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... > 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.
From: PeterD on 23 Jun 2010 06:32 On Tue, 22 Jun 2010 16:40:43 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: >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 And being used as a price-reduction tool is all that bad? <bg>
From: Spehro Pefhany on 23 Jun 2010 07:56
On Wed, 23 Jun 2010 06:32:51 -0400, the renowned PeterD <peter2(a)hipson.net> wrote: >On Tue, 22 Jun 2010 16:40:43 -0700, Jim Thompson ><To-Email-Use-The-Envelope-Icon(a)On-My-Web-Site.com> wrote: > >>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 > >And being used as a price-reduction tool is all that bad? <bg> 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(a)interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |