Maxim 6675 UK source

[Icarus60]

I am trying to obtain a Max6675 for processing a K type thermocouple. Can anybody advise me if they can be obtained in UK and from where?
Any help appreciated
Thanks and regards

 

[eclectic]

From here?
http://uk.farnell.com/maxim/max6675isa/converter-temp-to-digital-spi/dp/1379740?_requestid=461841

e

 

[Dippy]

Blimey, you're a rich man

http://uk.farnell.com/maxim/max6675isa/converter-temp-to-digital-spi/dp/1379740?_requestid=203961

They have the 6674 in Rapid, dunno the difference.
http://www.rapidonline.com/Electronic-Components/Integrated-Circuits/Sensors/MAX6674-Thermocouple-to-digital-converter-IC/77202/kw/MAX6674 Thermocouple-to-digital converter IC

I'm sure people here have used that chip.
Have you tried a search and asking them by PM?

 

[Dippy]

Gee, you're fast on the draw ec!

Are you e-kerb-crawling?

 

[Andrew Cowan]

They are both SOIC packages - I can't see any difference...

A

 

[eclectic]

Gee, you're fast on the draw ec!

Are you e-kerb-crawling?

Crawling??
Looking at the timing of our replies, we're

both speeding

e

 

[Dippy]

You're absolutely right Andrew, they are both black and shiny

Perhaps the Data Sheets may indicate different resolutions and ranges..... oh yes.

 

[westaust55]

MAX6675 alternate OS sources

If you are willing to look further afield, Futurlec US and Aust have them:


MAX6675ISA MAX6675 - Thermocouple-to-Digital Converter US$7.20


MAX6675ISA MAX6675 - Thermocouple-to-Digital Converter AU$ 9.32


My experiences with Futurlec have been good. Parts whether thru US or Aust ordering come out of a warehouse in Thailand. All components bought worked, and at AU$4 for post and package hard to beat.

 

[rmeldo]

They have the 6674 in Rapid, dunno the difference

Max6675 is for a K type thermocouple.

Max 6674 is not. It depends on the thermocouple you want to use

 

[SD2100]

Get onto the Maxim web site and order sum free samples, they'll send you 2 MAX6675's, They sent me 2 freebies a few months ago.

 

[Icarus60]

Thanks will look at Farnell. For info the 6674 does 0-128 deg c whilst the 6675 goes up to 1024 deg c

 

[Icarus60]

..........and then further afield . Thanks for all your responses. Much appreciated

 

[Dippy]

Icarus,
this is merely a suggestion.
If space permits then consider a SOIC to DIP adaptor.

Then you can breadboard it. Also as it is a pukka PCB there is solder-resist in between the legs. This makes a successful solder more likely.

I don't want to prompt 3000 replies saying "I can solder SOICs 'cos I'm so clever" as that is very boring, but for prototyping/practicing/breadboarding those little adaptors can be handy.

Also, if you solder the SOIC onto a home-brew PCB and you've messed up the board then getting it off again without overheating can be a chore.
If it's on a separate plug-in then it can help.
Co-incidentally, exactly that scenario happened to me last week. And it did help

They are available very cheaply (Futurlec??) or very dearly (RS and farnell). All I will say about one of the versions available from RS is that the pins are very thin and will plop into DIP sockets without damage.

 

[Andres Rodriguez]

P. Andreson sells them pre-mounted on DIP adapters and in his website you can download a code snippet to interface with a Picaxe.
http://www.phanderson.com/

 

[westaust55]

SOIC to DIP adapters

I concur with dippy.

Have a look at this thread from May 08 for some ideas.
http://www.picaxeforum.co.uk/showthread.php?t=9611
Some SOIC to DIP adapters can be compact and others large so do a bit of a search for yourself.

 

[Icarus60]

Max6675

Thanks for all your replies and help. Much appreciated.
I now have two Max6675 in my hand, courtesy of Maxim samples service and will be following your advice and leads to ensure that I do not cook them.

Thanks again.