On Fri, 17 Feb 2017 11:10:26 -0500, Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:>On 02/16/2017 11:51 AM, John Larkin wrote: >> On Thu, 16 Feb 2017 08:15:36 -0800 (PST), DemonicTubes >> <tlackie@gmail.com> wrote: >> >>> Does anybody here have experience with MAX4208/MAX4209? >>> >>> Current project is going to need an instrumentation amplifier, looking at my inventory all I have is some through hole INA111 that still have Burr-Brown stamped on them (probably bought them in the mid 90s)...time to upgrade my stock! >>> >>> As I go see what's new I find the Maxim MAX4208 and MAX4209. Normally there seems to be a trade off between V and I input offsets, but these chips have good values for both. I even noticed the MAX4209 is in the table in AoE 3rd Ed. page 363 (I also just noticed John Larkin is mentioned by name in this chapter). This chip is much cheaper than the others and has some of the best specs...what am I missing? I have had colleagues in the past recommend not designing in Maxim chips, but I can't remember why. I've only ever used their 232 and 485 transceivers (and they have been very reliable). >>> >>> Anybody want to talk me out of using this chip? And if so, recommend an alternative? I'm hoping for similar performance under $4 in quantities of 1000. >>> >>> Thanks. >> >> Our company policy is Never Buy Maxim. >> >> TI and LTC are the best analog part sources these days. >> >> >> >AD is buying LTC. Hopefully that means more LTspice models for AD stuff.Not sure what I'd do with an LTspice model for a Sharc. ;-)
Maxim Instrumentation Amplifiers
Started by ●February 16, 2017
Reply by ●February 17, 20172017-02-17
Reply by ●February 18, 20172017-02-18
John Larkin <jjlarkinxyxy@highlandtechnology.com> wrote:> > We named The Brat with three San Francisco street names. >"Fifth Second Seventh Avenue Larkin, you listen to your father when he talks to you!"
Reply by ●February 18, 20172017-02-18
On Sat, 18 Feb 2017 04:49:19 +0000 (UTC), Ralph Barone <ralph@invalid.com> wrote:>John Larkin <jjlarkinxyxy@highlandtechnology.com> wrote: >> >> We named The Brat with three San Francisco street names. >> > >"Fifth Second Seventh Avenue Larkin, you listen to your father when he >talks to you!" >Actually, I work for her now. -- John Larkin Highland Technology, Inc lunatic fringe electronics
Reply by ●February 18, 20172017-02-18
On 2017-02-16, bitrex <bitrex@de.lete.earthlink.net> wrote:> On 02/16/2017 03:29 PM, John Larkin wrote: >> >> And you can't trademark a part number. >> > > Could you give all your parts unique names? Like call a certain op amp > the "Glompastompinator" and another the "Frazawingwong"?That's what Intel did starting with Pentium™ -- This email has not been checked by half-arsed antivirus software
Reply by ●February 18, 20172017-02-18
On Sat, 18 Feb 2017 12:35:43 +1100, Clifford Heath <no.spam@please.net> wrote:>On 18/02/17 07:29, John Larkin wrote: >> On Fri, 17 Feb 2017 12:53:14 -0500, bitrex >> <bitrex@de.lete.earthlink.net> wrote: >> >>> On 02/17/2017 12:51 PM, bitrex wrote: >>>> On 02/17/2017 12:44 PM, John Larkin wrote: >>>>> On Fri, 17 Feb 2017 12:35:04 -0500, bitrex >>>>> <bitrex@de.lete.earthlink.net> wrote: >>>>> >>>>>> On 02/16/2017 07:33 PM, Phil Hobbs wrote: >>>>>>> On 02/16/2017 03:40 PM, bitrex wrote: >>>>>>>> On 02/16/2017 03:25 PM, John Larkin wrote: >>>>>>>>> On Thu, 16 Feb 2017 11:42:34 -0500, bitrex >>>>>>>>> <bitrex@de.lete.earthlink.net> wrote: >>>>>>>>> >>>>>>>>>> On 02/16/2017 11:33 AM, DemonicTubes wrote: >>>>>>>>>>> On Thursday, February 16, 2017 at 9:27:38 AM UTC-7, bitrex wrote: >>>>>>>>>>>> On 02/16/2017 11:15 AM, DemonicTubes wrote: >>>>>>>>>>>>> Does anybody here have experience with MAX4208/MAX4209? >>>>>>>>>>>>> >>>>>>>>>>>>> Current project is going to need an instrumentation amplifier, >>>>>>>>>>>>> looking at my inventory all I have is some through hole INA111 >>>>>>>>>>>>> that still have Burr-Brown stamped on them (probably bought them >>>>>>>>>>>>> in the mid 90s)...time to upgrade my stock! >>>>>>>>>>>>> >>>>>>>>>>>>> As I go see what's new I find the Maxim MAX4208 and MAX4209. >>>>>>>>>>>>> Normally there seems to be a trade off between V and I input >>>>>>>>>>>>> offsets, but these chips have good values for both. I even >>>>>>>>>>>>> noticed the MAX4209 is in the table in AoE 3rd Ed. page 363 (I >>>>>>>>>>>>> also just noticed John Larkin is mentioned by name in this >>>>>>>>>>>>> chapter). This chip is much cheaper than the others and has some >>>>>>>>>>>>> of the best specs...what am I missing? I have had colleagues in >>>>>>>>>>>>> the past recommend not designing in Maxim chips, but I can't >>>>>>>>>>>>> remember why. I've only ever used their 232 and 485 transceivers >>>>>>>>>>>>> (and they have been very reliable). >>>>>>>>>>>>> >>>>>>>>>>>>> Anybody want to talk me out of using this chip? And if so, >>>>>>>>>>>>> recommend an alternative? I'm hoping for similar performance >>>>>>>>>>>>> under $4 in quantities of 1000. >>>>>>>>>>>>> >>>>>>>>>>>>> Thanks. >>>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> I believe there's a saying in this NG: "Friends don't let >>>>>>>>>>>> friends use >>>>>>>>>>>> Maxim." >>>>>>>>>>>> >>>>>>>>>>>> Were the 232 transceivers from Texas Instruments? They make the >>>>>>>>>>>> best >>>>>>>>>>>> Maxim parts >>>>>>>>>>> >>>>>>>>>>> That is too funny, you just made me check my stock. The MAX232s >>>>>>>>>>> are >>>>>>>>>>> indeed TI parts! The MAX483s are, however, Maxim. What troubles >>>>>>>>>>> have you had with Maxim parts? >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> They bought up a bunch of Dallas parts and as I recall I found >>>>>>>>>> that the >>>>>>>>>> way their datasheet said you're supposed to talk to them over SPI >>>>>>>>>> didn't >>>>>>>>>> bear much relation to reality. >>>>>>>>>> >>>>>>>>>> I haven't really used any of their purely analog stuff, it may be >>>>>>>>>> OK, >>>>>>>>>> but I'm leery of getting anything that a uP needs to talk to... >>>>>>>>> >>>>>>>>> Maxim makes a digital capacitor. The 2-pin interface is >>>>>>>>> >>>>>>>>> reset >>>>>>>>> count up >>>>>>>>> >>>>>>>> >>>>>>>> Hopefully it also has two outputs, CAPACITOR and NOT_CAPACITOR >>>>>>>> >>>>>>> >>>>>>> You're so modern. BITD it would have been SIGNAL and OUTSIDE FOIL. ;) >>>>>>> >>>>>>> Cheers >>>>>>> >>>>>>> Phil Hobbs >>>>>>> >>>>>> >>>>>> Tell us more about the old days, Pops! You ever meet Abraham Lincoln? >>>>> >>>>> We have a friend who just had a baby on Lincoln's Birthday. They named >>>>> her Penny. >>>>> >>>> >>>> Kid names are hard because if you go with the Biblical standards these >>>> days you're thought to be uncreative and low-effort, while if you go >>>> hipster whack-out you're thought to be attention-seeking and "tryhard", >>>> and your kid is going to change it anyway after you name him "Corvid" >>>> and a decade of being called "Corbin Dallas Multipass" by his peers. >>>> >>>> Preteens are very creative at thinking up unflattering nicknames. >>>> >>>> "Penny" seems like a reasonable compromise. "Benny"? "Fenny"? I don't >>>> know, I got nothin'. >>>> >>> >>> Oops, wait..."Penny Dreadful." Oh dear. >> >> We named The Brat with three San Francisco street names. > >Hoping you aren't going to say she was conceived at the junction...Only two of the streets intersect. -- John Larkin Highland Technology, Inc lunatic fringe electronics
Reply by ●February 18, 20172017-02-18
On 02/18/2017 11:13 AM, John Larkin wrote:> On Sat, 18 Feb 2017 12:35:43 +1100, Clifford Heath > <no.spam@please.net> wrote: > >> On 18/02/17 07:29, John Larkin wrote: >>> On Fri, 17 Feb 2017 12:53:14 -0500, bitrex >>> <bitrex@de.lete.earthlink.net> wrote: >>> >>>> On 02/17/2017 12:51 PM, bitrex wrote: >>>>> On 02/17/2017 12:44 PM, John Larkin wrote: >>>>>> On Fri, 17 Feb 2017 12:35:04 -0500, bitrex >>>>>> <bitrex@de.lete.earthlink.net> wrote: >>>>>> >>>>>>> On 02/16/2017 07:33 PM, Phil Hobbs wrote: >>>>>>>> On 02/16/2017 03:40 PM, bitrex wrote: >>>>>>>>> On 02/16/2017 03:25 PM, John Larkin wrote: >>>>>>>>>> On Thu, 16 Feb 2017 11:42:34 -0500, bitrex >>>>>>>>>> <bitrex@de.lete.earthlink.net> wrote: >>>>>>>>>> >>>>>>>>>>> On 02/16/2017 11:33 AM, DemonicTubes wrote: >>>>>>>>>>>> On Thursday, February 16, 2017 at 9:27:38 AM UTC-7, bitrex wrote: >>>>>>>>>>>>> On 02/16/2017 11:15 AM, DemonicTubes wrote: >>>>>>>>>>>>>> Does anybody here have experience with MAX4208/MAX4209? >>>>>>>>>>>>>> >>>>>>>>>>>>>> Current project is going to need an instrumentation amplifier, >>>>>>>>>>>>>> looking at my inventory all I have is some through hole INA111 >>>>>>>>>>>>>> that still have Burr-Brown stamped on them (probably bought them >>>>>>>>>>>>>> in the mid 90s)...time to upgrade my stock! >>>>>>>>>>>>>> >>>>>>>>>>>>>> As I go see what's new I find the Maxim MAX4208 and MAX4209. >>>>>>>>>>>>>> Normally there seems to be a trade off between V and I input >>>>>>>>>>>>>> offsets, but these chips have good values for both. I even >>>>>>>>>>>>>> noticed the MAX4209 is in the table in AoE 3rd Ed. page 363 (I >>>>>>>>>>>>>> also just noticed John Larkin is mentioned by name in this >>>>>>>>>>>>>> chapter). This chip is much cheaper than the others and has some >>>>>>>>>>>>>> of the best specs...what am I missing? I have had colleagues in >>>>>>>>>>>>>> the past recommend not designing in Maxim chips, but I can't >>>>>>>>>>>>>> remember why. I've only ever used their 232 and 485 transceivers >>>>>>>>>>>>>> (and they have been very reliable). >>>>>>>>>>>>>> >>>>>>>>>>>>>> Anybody want to talk me out of using this chip? And if so, >>>>>>>>>>>>>> recommend an alternative? I'm hoping for similar performance >>>>>>>>>>>>>> under $4 in quantities of 1000. >>>>>>>>>>>>>> >>>>>>>>>>>>>> Thanks. >>>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> I believe there's a saying in this NG: "Friends don't let >>>>>>>>>>>>> friends use >>>>>>>>>>>>> Maxim." >>>>>>>>>>>>> >>>>>>>>>>>>> Were the 232 transceivers from Texas Instruments? They make the >>>>>>>>>>>>> best >>>>>>>>>>>>> Maxim parts >>>>>>>>>>>> >>>>>>>>>>>> That is too funny, you just made me check my stock. The MAX232s >>>>>>>>>>>> are >>>>>>>>>>>> indeed TI parts! The MAX483s are, however, Maxim. What troubles >>>>>>>>>>>> have you had with Maxim parts? >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> They bought up a bunch of Dallas parts and as I recall I found >>>>>>>>>>> that the >>>>>>>>>>> way their datasheet said you're supposed to talk to them over SPI >>>>>>>>>>> didn't >>>>>>>>>>> bear much relation to reality. >>>>>>>>>>> >>>>>>>>>>> I haven't really used any of their purely analog stuff, it may be >>>>>>>>>>> OK, >>>>>>>>>>> but I'm leery of getting anything that a uP needs to talk to... >>>>>>>>>> >>>>>>>>>> Maxim makes a digital capacitor. The 2-pin interface is >>>>>>>>>> >>>>>>>>>> reset >>>>>>>>>> count up >>>>>>>>>> >>>>>>>>> >>>>>>>>> Hopefully it also has two outputs, CAPACITOR and NOT_CAPACITOR >>>>>>>>> >>>>>>>> >>>>>>>> You're so modern. BITD it would have been SIGNAL and OUTSIDE FOIL. ;) >>>>>>>> >>>>>>>> Cheers >>>>>>>> >>>>>>>> Phil Hobbs >>>>>>>> >>>>>>> >>>>>>> Tell us more about the old days, Pops! You ever meet Abraham Lincoln? >>>>>> >>>>>> We have a friend who just had a baby on Lincoln's Birthday. They named >>>>>> her Penny. >>>>>> >>>>> >>>>> Kid names are hard because if you go with the Biblical standards these >>>>> days you're thought to be uncreative and low-effort, while if you go >>>>> hipster whack-out you're thought to be attention-seeking and "tryhard", >>>>> and your kid is going to change it anyway after you name him "Corvid" >>>>> and a decade of being called "Corbin Dallas Multipass" by his peers. >>>>> >>>>> Preteens are very creative at thinking up unflattering nicknames. >>>>> >>>>> "Penny" seems like a reasonable compromise. "Benny"? "Fenny"? I don't >>>>> know, I got nothin'. >>>>> >>>> >>>> Oops, wait..."Penny Dreadful." Oh dear. >>> >>> We named The Brat with three San Francisco street names. >> >> Hoping you aren't going to say she was conceived at the junction... > > Only two of the streets intersect. > >Well, a Douglas Adams character was named for having been conceived in the ticket lineup at Fenchurch Station. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net
Reply by ●February 18, 20172017-02-18
On Thu, 16 Feb 2017 12:05:11 -0800, Lasse Langwadt Christensen wrote:> Den torsdag den 16. februar 2017 kl. 20.50.50 UTC+1 skrev Tim Wescott: >> On Thu, 16 Feb 2017 08:15:36 -0800, DemonicTubes wrote: >> >> > Does anybody here have experience with MAX4208/MAX4209? >> > >> > Current project is going to need an instrumentation amplifier, >> > looking at my inventory all I have is some through hole INA111 that >> > still have Burr-Brown stamped on them (probably bought them in the >> > mid 90s)...time to upgrade my stock! >> > >> > As I go see what's new I find the Maxim MAX4208 and MAX4209. >> > Normally there seems to be a trade off between V and I input offsets, >> > but these chips have good values for both. I even noticed the >> > MAX4209 is in the table in AoE 3rd Ed. page 363 (I also just noticed >> > John Larkin is mentioned by name in this chapter). This chip is much >> > cheaper than the others and has some of the best specs...what am I >> > missing? I have had colleagues in the past recommend not designing >> > in Maxim chips, but I can't remember why. I've only ever used their >> > 232 and 485 transceivers (and they have been very reliable). >> > >> > Anybody want to talk me out of using this chip? And if so, recommend >> > an alternative? I'm hoping for similar performance under $4 in >> > quantities of 1000. >> > >> > Thanks. >> >> It's not that Maxim doesn't make good stuff -- they do. The problem >> is, >> if they haven't changed their ways, that unless you're in a position to >> buy parts one entire production run at a time, their delivery is >> spotty. > > yeh it is as if they take every idea they have and do a small run to > offer up as samples, then if someone orders a crap ton they start real > production if not the part just disappearsI had a Maxim sales engineer look me in the eye once and say that they never discontinued parts. Well, sure, pal, you don't "discontinue" them in the sense of taking them out of your catalog, but you sure as hell don't provide a steady supply of them! -- Tim Wescott Control systems, embedded software and circuit design I'm looking for work! See my website if you're interested http://www.wescottdesign.com
Reply by ●February 18, 20172017-02-18
On Sat, 18 Feb 2017 12:48:52 -0600, the renowned Tim Wescott <tim@seemywebsite.com> wrote:>On Thu, 16 Feb 2017 12:05:11 -0800, Lasse Langwadt Christensen wrote:> >I had a Maxim sales engineer look me in the eye once and say that they >never discontinued parts. > >Well, sure, pal, you don't "discontinue" them in the sense of taking them >out of your catalog, but you sure as hell don't provide a steady supply >of them!Is it discontinued if it's never really available in the first place? --sp -- Best regards, Spehro Pefhany
Reply by ●February 18, 20172017-02-18
On Sat, 18 Feb 2017 12:48:52 -0600, Tim Wescott <tim@seemywebsite.com> wrote:>On Thu, 16 Feb 2017 12:05:11 -0800, Lasse Langwadt Christensen wrote: > >> Den torsdag den 16. februar 2017 kl. 20.50.50 UTC+1 skrev Tim Wescott: >>> On Thu, 16 Feb 2017 08:15:36 -0800, DemonicTubes wrote: >>> >>> > Does anybody here have experience with MAX4208/MAX4209? >>> > >>> > Current project is going to need an instrumentation amplifier, >>> > looking at my inventory all I have is some through hole INA111 that >>> > still have Burr-Brown stamped on them (probably bought them in the >>> > mid 90s)...time to upgrade my stock! >>> > >>> > As I go see what's new I find the Maxim MAX4208 and MAX4209. >>> > Normally there seems to be a trade off between V and I input offsets, >>> > but these chips have good values for both. I even noticed the >>> > MAX4209 is in the table in AoE 3rd Ed. page 363 (I also just noticed >>> > John Larkin is mentioned by name in this chapter). This chip is much >>> > cheaper than the others and has some of the best specs...what am I >>> > missing? I have had colleagues in the past recommend not designing >>> > in Maxim chips, but I can't remember why. I've only ever used their >>> > 232 and 485 transceivers (and they have been very reliable). >>> > >>> > Anybody want to talk me out of using this chip? And if so, recommend >>> > an alternative? I'm hoping for similar performance under $4 in >>> > quantities of 1000. >>> > >>> > Thanks. >>> >>> It's not that Maxim doesn't make good stuff -- they do. The problem >>> is, >>> if they haven't changed their ways, that unless you're in a position to >>> buy parts one entire production run at a time, their delivery is >>> spotty. >> >> yeh it is as if they take every idea they have and do a small run to >> offer up as samples, then if someone orders a crap ton they start real >> production if not the part just disappears > >I had a Maxim sales engineer look me in the eye once and say that they >never discontinued parts.I hope you weren't eating anything.> >Well, sure, pal, you don't "discontinue" them in the sense of taking them >out of your catalog, but you sure as hell don't provide a steady supply >of them!I've had them pull a part before production, after we'd spend a year getting it into pre-production. Nice part. When my boss told me they'd pulled the rug out from under us, my first words were "I told you so".
Reply by ●February 21, 20172017-02-21
On Fri, 17 Feb 2017 22:40:17 -0500, krw@notreal.com wrote:>On Fri, 17 Feb 2017 09:44:51 -0800, John Larkin ><jjlarkin@highlandtechnology.com> wrote: > >>On Fri, 17 Feb 2017 12:35:04 -0500, bitrex >><bitrex@de.lete.earthlink.net> wrote: >> >>>On 02/16/2017 07:33 PM, Phil Hobbs wrote: >>>> On 02/16/2017 03:40 PM, bitrex wrote: >>>>> On 02/16/2017 03:25 PM, John Larkin wrote: >>>>>> On Thu, 16 Feb 2017 11:42:34 -0500, bitrex >>>>>> <bitrex@de.lete.earthlink.net> wrote: >>>>>> >>>>>>> On 02/16/2017 11:33 AM, DemonicTubes wrote: >>>>>>>> On Thursday, February 16, 2017 at 9:27:38 AM UTC-7, bitrex wrote: >>>>>>>>> On 02/16/2017 11:15 AM, DemonicTubes wrote: >>>>>>>>>> Does anybody here have experience with MAX4208/MAX4209? >>>>>>>>>> >>>>>>>>>> Current project is going to need an instrumentation amplifier, >>>>>>>>>> looking at my inventory all I have is some through hole INA111 >>>>>>>>>> that still have Burr-Brown stamped on them (probably bought them >>>>>>>>>> in the mid 90s)...time to upgrade my stock! >>>>>>>>>> >>>>>>>>>> As I go see what's new I find the Maxim MAX4208 and MAX4209. >>>>>>>>>> Normally there seems to be a trade off between V and I input >>>>>>>>>> offsets, but these chips have good values for both. I even >>>>>>>>>> noticed the MAX4209 is in the table in AoE 3rd Ed. page 363 (I >>>>>>>>>> also just noticed John Larkin is mentioned by name in this >>>>>>>>>> chapter). This chip is much cheaper than the others and has some >>>>>>>>>> of the best specs...what am I missing? I have had colleagues in >>>>>>>>>> the past recommend not designing in Maxim chips, but I can't >>>>>>>>>> remember why. I've only ever used their 232 and 485 transceivers >>>>>>>>>> (and they have been very reliable). >>>>>>>>>> >>>>>>>>>> Anybody want to talk me out of using this chip? And if so, >>>>>>>>>> recommend an alternative? I'm hoping for similar performance >>>>>>>>>> under $4 in quantities of 1000. >>>>>>>>>> >>>>>>>>>> Thanks. >>>>>>>>>> >>>>>>>>> >>>>>>>>> I believe there's a saying in this NG: "Friends don't let friends use >>>>>>>>> Maxim." >>>>>>>>> >>>>>>>>> Were the 232 transceivers from Texas Instruments? They make the best >>>>>>>>> Maxim parts >>>>>>>> >>>>>>>> That is too funny, you just made me check my stock. The MAX232s are >>>>>>>> indeed TI parts! The MAX483s are, however, Maxim. What troubles >>>>>>>> have you had with Maxim parts? >>>>>>>> >>>>>>> >>>>>>> They bought up a bunch of Dallas parts and as I recall I found that the >>>>>>> way their datasheet said you're supposed to talk to them over SPI >>>>>>> didn't >>>>>>> bear much relation to reality. >>>>>>> >>>>>>> I haven't really used any of their purely analog stuff, it may be OK, >>>>>>> but I'm leery of getting anything that a uP needs to talk to... >>>>>> >>>>>> Maxim makes a digital capacitor. The 2-pin interface is >>>>>> >>>>>> reset >>>>>> count up >>>>>> >>>>> >>>>> Hopefully it also has two outputs, CAPACITOR and NOT_CAPACITOR >>>>> >>>> >>>> You're so modern. BITD it would have been SIGNAL and OUTSIDE FOIL. ;) >>>> >>>> Cheers >>>> >>>> Phil Hobbs >>>> >>> >>>Tell us more about the old days, Pops! You ever meet Abraham Lincoln? >> >>We have a friend who just had a baby on Lincoln's Birthday. They named >>her Penny. > >Hmm, they didn't name her One Cent?"Penny" is better than "Gettysburg Address" -- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
