Does anyone use Apex parts? https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 The companion heat sink is https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D -- If a man will begin with certainties, he shall end with doubts, but if he will be content to begin with doubts he shall end in certainties. Francis Bacon
Apex
Started by ●December 29, 2021
Reply by ●December 29, 20212021-12-29
John Larkin wrote:> Does anyone use Apex parts? > > https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 > > The companion heat sink is > > https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D > >Sure, for one-offs. Last one I used was in about 1989, as the output stage of a piezo driver for a prototype atomic force microscope. IIRC it was a PA85, which was a beefier replacement for the Burr-Brown 3584--higher voltage (450V vs 300V) and much faster (1 kV/us vs 150 V/us). The Apex parts were very noisy, iirc, but since it was the output stage, I didn't care very much. I really doubt I'd use one in any design that was going to be replicated more than 20 times. OTOH the quickish slew rate is worth a fair amount sometimes. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com
Reply by ●December 29, 20212021-12-29
On Wed, 29 Dec 2021 21:16:34 -0500, Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:>John Larkin wrote: >> Does anyone use Apex parts? >> >> https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 >> >> The companion heat sink is >> >> https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D >> >> > >Sure, for one-offs. Last one I used was in about 1989, as the output >stage of a piezo driver for a prototype atomic force microscope. IIRC >it was a PA85, which was a beefier replacement for the Burr-Brown >3584--higher voltage (450V vs 300V) and much faster (1 kV/us vs 150 V/us). > >The Apex parts were very noisy, iirc, but since it was the output stage, >I didn't care very much. > >I really doubt I'd use one in any design that was going to be replicated >more than 20 times. OTOH the quickish slew rate is worth a fair amount >sometimes. > >Cheers > >Phil HobbsDid you look at the price on that heat sink? Even boring heat sinks are priced at kilobucks these days. https://www.mouser.com/ProductDetail/Aavid/602151F00000G?qs=KrMmfw1gsVf%2FvbGzFuwJMg%3D%3D -- I yam what I yam - Popeye
Reply by ●December 30, 20212021-12-30
jlarkin@highlandsniptechnology.com wrote:> On Wed, 29 Dec 2021 21:16:34 -0500, Phil Hobbs > <pcdhSpamMeSenseless@electrooptical.net> wrote: > >> John Larkin wrote: >>> Does anyone use Apex parts? >>> >>> https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 >>> >>> The companion heat sink is >>> >>> https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D >>> >>> >> >> Sure, for one-offs. Last one I used was in about 1989, as the output >> stage of a piezo driver for a prototype atomic force microscope. IIRC >> it was a PA85, which was a beefier replacement for the Burr-Brown >> 3584--higher voltage (450V vs 300V) and much faster (1 kV/us vs 150 V/us). >> >> The Apex parts were very noisy, iirc, but since it was the output stage, >> I didn't care very much. >> >> I really doubt I'd use one in any design that was going to be replicated >> more than 20 times. OTOH the quickish slew rate is worth a fair amount >> sometimes. >> >> Cheers >> >> Phil Hobbs > > Did you look at the price on that heat sink? > > Even boring heat sinks are priced at kilobucks these days. > > https://www.mouser.com/ProductDetail/Aavid/602151F00000G?qs=KrMmfw1gsVf%2FvbGzFuwJMg%3D%3DWell, it's $3k, but they have none in stock and the lead time is 22 weeks. That's less than $140 per week on layaway. What's not to like? (I have some 8-pin TO-3 heat sinks I bought for use with LH0063s and LH4009s. They'd fit.) Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com
Reply by ●December 30, 20212021-12-30
On 30/12/21 13:54, jlarkin@highlandsniptechnology.com wrote:> On Wed, 29 Dec 2021 21:16:34 -0500, Phil Hobbs > <pcdhSpamMeSenseless@electrooptical.net> wrote: > >> John Larkin wrote: >>> Does anyone use Apex parts? >>> >>> https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 >>> >>> The companion heat sink is >>> >>> https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D >>> >>> >> >> Sure, for one-offs. Last one I used was in about 1989, as the output >> stage of a piezo driver for a prototype atomic force microscope. IIRC >> it was a PA85, which was a beefier replacement for the Burr-Brown >> 3584--higher voltage (450V vs 300V) and much faster (1 kV/us vs 150 V/us). >> >> The Apex parts were very noisy, iirc, but since it was the output stage, >> I didn't care very much. >> >> I really doubt I'd use one in any design that was going to be replicated >> more than 20 times. OTOH the quickish slew rate is worth a fair amount >> sometimes. >> >> Cheers >> >> Phil Hobbs > > Did you look at the price on that heat sink? > > Even boring heat sinks are priced at kilobucks these days. > > https://www.mouser.com/ProductDetail/Aavid/602151F00000G?qs=KrMmfw1gsVf%2FvbGzFuwJMg%3D%3D > > >Free shipping though! -- Marty
Reply by ●December 30, 20212021-12-30
On Wed, 29 Dec 2021 18:54:34 -0800, jlarkin@highlandsniptechnology.com wrote:>On Wed, 29 Dec 2021 21:16:34 -0500, Phil Hobbs ><pcdhSpamMeSenseless@electrooptical.net> wrote: > >>John Larkin wrote: >>> Does anyone use Apex parts? >>> >>> https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 >>> >>> The companion heat sink is >>> >>> https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D >>> >>> >> >>Sure, for one-offs. Last one I used was in about 1989, as the output >>stage of a piezo driver for a prototype atomic force microscope. IIRC >>it was a PA85, which was a beefier replacement for the Burr-Brown >>3584--higher voltage (450V vs 300V) and much faster (1 kV/us vs 150 V/us). >> >>The Apex parts were very noisy, iirc, but since it was the output stage, >>I didn't care very much. >> >>I really doubt I'd use one in any design that was going to be replicated >>more than 20 times. OTOH the quickish slew rate is worth a fair amount >>sometimes. >> >>Cheers >> >>Phil Hobbs > >Did you look at the price on that heat sink? > >Even boring heat sinks are priced at kilobucks these days. > > <https://www.mouser.com/ProductDetail/Aavid/602151F00000G?qs=KrMmfw1gsVf%2FvbGzFuwJMg%3D%3D>I'd read that as Aavid has decided to drop that product, but for $3K, they will pull the tooling out of storage and make a run. Once going, they will make many, and sell you the first. Joe Gwinn
Reply by ●December 30, 20212021-12-30
Joe Gwinn wrote:> On Wed, 29 Dec 2021 18:54:34 -0800, jlarkin@highlandsniptechnology.com > wrote: > >> On Wed, 29 Dec 2021 21:16:34 -0500, Phil Hobbs >> <pcdhSpamMeSenseless@electrooptical.net> wrote: >> >>> John Larkin wrote: >>>> Does anyone use Apex parts? >>>> >>>> https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 >>>> >>>> The companion heat sink is >>>> >>>> https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D >>>> >>>> >>> >>> Sure, for one-offs. Last one I used was in about 1989, as the output >>> stage of a piezo driver for a prototype atomic force microscope. IIRC >>> it was a PA85, which was a beefier replacement for the Burr-Brown >>> 3584--higher voltage (450V vs 300V) and much faster (1 kV/us vs 150 V/us). >>> >>> The Apex parts were very noisy, iirc, but since it was the output stage, >>> I didn't care very much. >>> >>> I really doubt I'd use one in any design that was going to be replicated >>> more than 20 times. OTOH the quickish slew rate is worth a fair amount >>> sometimes. >>> >>> Cheers >>> >>> Phil Hobbs >> >> Did you look at the price on that heat sink? >> >> Even boring heat sinks are priced at kilobucks these days. >> >> <https://www.mouser.com/ProductDetail/Aavid/602151F00000G?qs=KrMmfw1gsVf%2FvbGzFuwJMg%3D%3D> > > I'd read that as Aavid has decided to drop that product, but for $3K, > they will pull the tooling out of storage and make a run. Once going, > they will make many, and sell you the first. > > Joe Gwinn >Might well be. Drilling a few more holes in a TO-3 heatsink is pretty simple--that $3k is more of a stupidity tax. ;) Distributor prices for heatsinks are pretty high in general. (Not usually as high as that, of course.) Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com
Reply by ●December 30, 20212021-12-30
On Thu, 30 Dec 2021 19:39:51 +1100, marty <marty@invalid.net> wrote:>On 30/12/21 13:54, jlarkin@highlandsniptechnology.com wrote: >> On Wed, 29 Dec 2021 21:16:34 -0500, Phil Hobbs >> <pcdhSpamMeSenseless@electrooptical.net> wrote: >> >>> John Larkin wrote: >>>> Does anyone use Apex parts? >>>> >>>> https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 >>>> >>>> The companion heat sink is >>>> >>>> https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D >>>> >>>> >>> >>> Sure, for one-offs. Last one I used was in about 1989, as the output >>> stage of a piezo driver for a prototype atomic force microscope. IIRC >>> it was a PA85, which was a beefier replacement for the Burr-Brown >>> 3584--higher voltage (450V vs 300V) and much faster (1 kV/us vs 150 V/us). >>> >>> The Apex parts were very noisy, iirc, but since it was the output stage, >>> I didn't care very much. >>> >>> I really doubt I'd use one in any design that was going to be replicated >>> more than 20 times. OTOH the quickish slew rate is worth a fair amount >>> sometimes. >>> >>> Cheers >>> >>> Phil Hobbs >> >> Did you look at the price on that heat sink? >> >> Even boring heat sinks are priced at kilobucks these days. >> >> https://www.mouser.com/ProductDetail/Aavid/602151F00000G?qs=KrMmfw1gsVf%2FvbGzFuwJMg%3D%3D >> >> >> >Free shipping though!I'd hate to pay shipping for parts that are out of stock. I see insane pricing on some parts, factors of 10 and sometimes 100x reasonable. -- I yam what I yam - Popeye
Reply by ●December 30, 20212021-12-30
On 12/30/2021 18:09, jlarkin@highlandsniptechnology.com wrote:> On Thu, 30 Dec 2021 19:39:51 +1100, marty <marty@invalid.net> wrote: > >> On 30/12/21 13:54, jlarkin@highlandsniptechnology.com wrote: >>> On Wed, 29 Dec 2021 21:16:34 -0500, Phil Hobbs >>> <pcdhSpamMeSenseless@electrooptical.net> wrote: >>> >>>> John Larkin wrote: >>>>> Does anyone use Apex parts? >>>>> >>>>> https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 >>>>> >>>>> The companion heat sink is >>>>> >>>>> https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D >>>>> >>>>> >>>> >>>> Sure, for one-offs. Last one I used was in about 1989, as the output >>>> stage of a piezo driver for a prototype atomic force microscope. IIRC >>>> it was a PA85, which was a beefier replacement for the Burr-Brown >>>> 3584--higher voltage (450V vs 300V) and much faster (1 kV/us vs 150 V/us). >>>> >>>> The Apex parts were very noisy, iirc, but since it was the output stage, >>>> I didn't care very much. >>>> >>>> I really doubt I'd use one in any design that was going to be replicated >>>> more than 20 times. OTOH the quickish slew rate is worth a fair amount >>>> sometimes. >>>> >>>> Cheers >>>> >>>> Phil Hobbs >>> >>> Did you look at the price on that heat sink? >>> >>> Even boring heat sinks are priced at kilobucks these days. >>> >>> https://www.mouser.com/ProductDetail/Aavid/602151F00000G?qs=KrMmfw1gsVf%2FvbGzFuwJMg%3D%3D >>> >>> >>> >> Free shipping though! > > I'd hate to pay shipping for parts that are out of stock. > > I see insane pricing on some parts, factors of 10 and sometimes 100x > reasonable. > > >The pricing on these opamps may be insane but so are the parts, I never knew things like that were on offer (2.5kV peak to peak output!). I have not done more than 200V peak to peak, was some 10 years ago, I did it with discrete parts though. The project could not have afforded opamps like these anyway.
Reply by ●December 30, 20212021-12-30
On Thu, 30 Dec 2021 10:44:45 -0500, Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:>Joe Gwinn wrote: >> On Wed, 29 Dec 2021 18:54:34 -0800, jlarkin@highlandsniptechnology.com >> wrote: >> >>> On Wed, 29 Dec 2021 21:16:34 -0500, Phil Hobbs >>> <pcdhSpamMeSenseless@electrooptical.net> wrote: >>> >>>> John Larkin wrote: >>>>> Does anyone use Apex parts? >>>>> >>>>> https://www.mouser.com/c/semiconductors/amplifier-ics/operational-amplifiers-op-amps/?marcom=184808364 >>>>> >>>>> The companion heat sink is >>>>> >>>>> https://www.mouser.com/ProductDetail/Apex-Microtechnology/HS11?qs=TiOZkKH1s2RwK46pUwsmlQ%3D%3D >>>>> >>>>> >>>> >>>> Sure, for one-offs. Last one I used was in about 1989, as the output >>>> stage of a piezo driver for a prototype atomic force microscope. IIRC >>>> it was a PA85, which was a beefier replacement for the Burr-Brown >>>> 3584--higher voltage (450V vs 300V) and much faster (1 kV/us vs 150 V/us). >>>> >>>> The Apex parts were very noisy, iirc, but since it was the output stage, >>>> I didn't care very much. >>>> >>>> I really doubt I'd use one in any design that was going to be replicated >>>> more than 20 times. OTOH the quickish slew rate is worth a fair amount >>>> sometimes. >>>> >>>> Cheers >>>> >>>> Phil Hobbs >>> >>> Did you look at the price on that heat sink? >>> >>> Even boring heat sinks are priced at kilobucks these days. >>> >>> <https://www.mouser.com/ProductDetail/Aavid/602151F00000G?qs=KrMmfw1gsVf%2FvbGzFuwJMg%3D%3D> >> >> I'd read that as Aavid has decided to drop that product, but for $3K, >> they will pull the tooling out of storage and make a run. Once going, >> they will make many, and sell you the first. >> >> Joe Gwinn >> > > >Might well be. Drilling a few more holes in a TO-3 heatsink is pretty >simple--that $3k is more of a stupidity tax. ;) > >Distributor prices for heatsinks are pretty high in general. (Not >usually as high as that, of course.) > >Cheers > >Phil HobbsWe designed our own box to replace the ugly awkward Hammond things. We designed a custom extrusion and had a bunch extruded and machined and anodized, and still saved money. https://www.dropbox.com/s/rathfqgnng2r7gt/T2box_2.jpg?raw=1 https://www.dropbox.com/s/43gma000fpuocyf/T130_box.jpg?raw=1 Commercial heat sinks cost crazy multiples of the cost of extruding aluminum. -- I yam what I yam - Popeye
