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Discussion Groups | Piclist | RTD Interface chip needed
A discussion group for the PICMicro microcontroller. Also called the Microchip PIC, this list is dedicated to the use and abuse of this fine, simple, microcontroller. Close to topic posts are welcome, ie. general electronics.
RTD Interface chip needed - jvoytovich - Mar 15 12:47:02 2009
Hi,
I've got an application where an existing RTD interface circuitry needs upgrading, and I'm looking for a custom chip that will handle the current sourcing and amplification necessary. The current circuit is composed of op amps, resistors and caps, and I would think there would be a single chip solution for this, possibly one that might also have a built-in ADC of 12 bits or more, and have an SPI interface.
I know that Christmas is a ways off, but a chip like this would save us a lot of board space. Seeing that RTD interfacing is a very common application, one would think some chips would habdle this.
Thanks all.
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______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
I've got an application where an existing RTD interface circuitry needs upgrading, and I'm looking for a custom chip that will handle the current sourcing and amplification necessary. The current circuit is composed of op amps, resistors and caps, and I would think there would be a single chip solution for this, possibly one that might also have a built-in ADC of 12 bits or more, and have an SPI interface.
I know that Christmas is a ways off, but a chip like this would save us a lot of board space. Seeing that RTD interfacing is a very common application, one would think some chips would habdle this.
Thanks all.
------------------------------------
to unsubscribe, go to http://www.yahoogroups.com and follow the instructions
______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
RE: RTD Interface chip needed - S Bakaletz - Mar 15 15:18:14 2009
You would think that would be a common chip, but I've yet to find one. One
option is to change
to K-Thermocouples and use a MAX6675. The other is to use a RTD transmitter
(Omega $75
fits in protective head output 4-20ma) then use a PIC or A/D to get what
you need. The upside
is quick integration and they come already calibrated (What's your time
worth). For a small
batch it's probably the best way to go.
Hi,
I've got an application where an existing RTD interface circuitry needs
upgrading, and I'm looking for a custom chip that will handle the current
sourcing and amplification necessary. The current circuit is composed of op
amps, resistors and caps, and I would think there would be a single chip
solution for this, possibly one that might also have a built-in ADC of 12
bits or more, and have an SPI interface.
I know that Christmas is a ways off, but a chip like this would save us a
lot of board space. Seeing that RTD interfacing is a very common
application, one would think some chips would habdle this.
Thanks all.
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
option is to change
to K-Thermocouples and use a MAX6675. The other is to use a RTD transmitter
(Omega $75
fits in protective head output 4-20ma) then use a PIC or A/D to get what
you need. The upside
is quick integration and they come already calibrated (What's your time
worth). For a small
batch it's probably the best way to go.
Hi,
I've got an application where an existing RTD interface circuitry needs
upgrading, and I'm looking for a custom chip that will handle the current
sourcing and amplification necessary. The current circuit is composed of op
amps, resistors and caps, and I would think there would be a single chip
solution for this, possibly one that might also have a built-in ADC of 12
bits or more, and have an SPI interface.
I know that Christmas is a ways off, but a chip like this would save us a
lot of board space. Seeing that RTD interfacing is a very common
application, one would think some chips would habdle this.
Thanks all.
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
RE: RTD Interface chip needed - Michiel Nijst - Mar 15 16:07:02 2009
Hi,
I use the AD7705 for RTDīs.
16 bits ADC and SPI.
Van: p...@yahoogroups.com [mailto:p...@yahoogroups.com] Namens S
Bakaletz
Verzonden: zondag 15 maart 2009 20:18
Aan: p...@yahoogroups.com
Onderwerp: RE: [piclist] RTD Interface chip needed
You would think that would be a common chip, but I've yet to find one. One
option is to change
to K-Thermocouples and use a MAX6675. The other is to use a RTD transmitter
(Omega $75
fits in protective head output 4-20ma) then use a PIC or A/D to get what
you need. The upside
is quick integration and they come already calibrated (What's your time
worth). For a small
batch it's probably the best way to go.
Hi,
I've got an application where an existing RTD interface circuitry needs
upgrading, and I'm looking for a custom chip that will handle the current
sourcing and amplification necessary. The current circuit is composed of op
amps, resistors and caps, and I would think there would be a single chip
solution for this, possibly one that might also have a built-in ADC of 12
bits or more, and have an SPI interface.
I know that Christmas is a ways off, but a chip like this would save us a
lot of board space. Seeing that RTD interfacing is a very common
application, one would think some chips would habdle this.
Thanks all.
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
I use the AD7705 for RTDīs.
16 bits ADC and SPI.
Van: p...@yahoogroups.com [mailto:p...@yahoogroups.com] Namens S
Bakaletz
Verzonden: zondag 15 maart 2009 20:18
Aan: p...@yahoogroups.com
Onderwerp: RE: [piclist] RTD Interface chip needed
You would think that would be a common chip, but I've yet to find one. One
option is to change
to K-Thermocouples and use a MAX6675. The other is to use a RTD transmitter
(Omega $75
fits in protective head output 4-20ma) then use a PIC or A/D to get what
you need. The upside
is quick integration and they come already calibrated (What's your time
worth). For a small
batch it's probably the best way to go.
Hi,
I've got an application where an existing RTD interface circuitry needs
upgrading, and I'm looking for a custom chip that will handle the current
sourcing and amplification necessary. The current circuit is composed of op
amps, resistors and caps, and I would think there would be a single chip
solution for this, possibly one that might also have a built-in ADC of 12
bits or more, and have an SPI interface.
I know that Christmas is a ways off, but a chip like this would save us a
lot of board space. Seeing that RTD interfacing is a very common
application, one would think some chips would habdle this.
Thanks all.
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
Re: RTD Interface chip needed - Joe Tackett - May 1 18:16:35 2009
Hello,
I need to hire a PIC programmer who is also a musician that fully understands MIDI.
Company is in Michigan, but that doesn't mean you would have to re-locate.
JT
----- Original Message -----
From: Michiel Nijst
To: p...@yahoogroups.com
Sent: Sunday, March 15, 2009 3:06 PM
Subject: RE: [piclist] RTD Interface chip needed
Hi,
I use the AD7705 for RTDīs.
16 bits ADC and SPI.
Van: p...@yahoogroups.com [mailto:p...@yahoogroups.com] Namens S Bakaletz
Verzonden: zondag 15 maart 2009 20:18
Aan: p...@yahoogroups.com
Onderwerp: RE: [piclist] RTD Interface chip needed
You would think that would be a common chip, but I've yet to find one. One option is to change
to K-Thermocouples and use a MAX6675. The other is to use a RTD transmitter (Omega $75
fits in protective head output 4-20ma) then use a PIC or A/D to get what you need. The upside
is quick integration and they come already calibrated (What's your time worth). For a small
batch it's probably the best way to go.
Hi,
I've got an application where an existing RTD interface circuitry needs upgrading, and I'm looking for a custom chip that will handle the current sourcing and amplification necessary. The current circuit is composed of op amps, resistors and caps, and I would think there would be a single chip solution for this, possibly one that might also have a built-in ADC of 12 bits or more, and have an SPI interface.
I know that Christmas is a ways off, but a chip like this would save us a lot of board space. Seeing that RTD interfacing is a very common application, one would think some chips would habdle this.
Thanks all.
------------------------------------------------------------------------------
No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.0.237 / Virus Database: 270.11.15/2004 - Release Date: 03/16/09 07:04:00
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
I need to hire a PIC programmer who is also a musician that fully understands MIDI.
Company is in Michigan, but that doesn't mean you would have to re-locate.
JT
----- Original Message -----
From: Michiel Nijst
To: p...@yahoogroups.com
Sent: Sunday, March 15, 2009 3:06 PM
Subject: RE: [piclist] RTD Interface chip needed
Hi,
I use the AD7705 for RTDīs.
16 bits ADC and SPI.
Van: p...@yahoogroups.com [mailto:p...@yahoogroups.com] Namens S Bakaletz
Verzonden: zondag 15 maart 2009 20:18
Aan: p...@yahoogroups.com
Onderwerp: RE: [piclist] RTD Interface chip needed
You would think that would be a common chip, but I've yet to find one. One option is to change
to K-Thermocouples and use a MAX6675. The other is to use a RTD transmitter (Omega $75
fits in protective head output 4-20ma) then use a PIC or A/D to get what you need. The upside
is quick integration and they come already calibrated (What's your time worth). For a small
batch it's probably the best way to go.
Hi,
I've got an application where an existing RTD interface circuitry needs upgrading, and I'm looking for a custom chip that will handle the current sourcing and amplification necessary. The current circuit is composed of op amps, resistors and caps, and I would think there would be a single chip solution for this, possibly one that might also have a built-in ADC of 12 bits or more, and have an SPI interface.
I know that Christmas is a ways off, but a chip like this would save us a lot of board space. Seeing that RTD interfacing is a very common application, one would think some chips would habdle this.
Thanks all.
------------------------------------------------------------------------------
No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.0.237 / Virus Database: 270.11.15/2004 - Release Date: 03/16/09 07:04:00
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
Re: RTD Interface chip needed - "Ronald C. Barnes" - May 1 18:24:53 2009
Well I'm not a musician, though certainly exposed
to it for much of my life (ex wife is first chair
french horn, mother was a pianist, grandfather
was an operatic singer) I just never picked it up myself (rebellion maybe?).
However, Midi I understand, its a protocol the
same as anything else. In fact its used in many
non-music applications as well (xmas lights spring to mind).
What do you have in mind?
At 11:43 AM 3/15/2009, you wrote:
>Hello,
>
>I need to hire a PIC programmer who is also a
>musician that fully understands MIDI.
>
>Company is in Michigan, but that doesn't mean you would have to re-locate.
>
>JT
>
>----- Original Message -----
>From:Michiel Nijst
>To:p...@yahoogroups.com
>Sent: Sunday, March 15, 2009 3:06 PM
>Subject: RE: [piclist] RTD Interface chip needed
>
>Hi,
>
>I use the AD7705 for RTDīs.
>
>16 bits ADC and SPI.
>
>Van:
>p...@yahoogroups.com
>[mailto:p...@yahoogroups.com] Namens S Bakaletz
>Verzonden: zondag 15 maart 2009 20:18
>Aan:p...@yahoogroups.com
>Onderwerp: RE: [piclist] RTD Interface chip needed
>
>You would think that would be a common chip, but
>I've yet to find one. One option is to change
>
>to K-Thermocouples and use a MAX6675. The other
>is to use a RTD transmitter (Omega $75
>
>fits in protective head output 4-20ma) then use
>a PIC or A/D to get what you need. The upside
>
>is quick integration and they come already
>calibrated (What's your time worth). For a small
>
>batch it's probably the best way to go.
>
>Hi,
>
>I've got an application where an existing RTD
>interface circuitry needs upgrading, and I'm
>looking for a custom chip that will handle the
>current sourcing and amplification necessary.
>The current circuit is composed of op amps,
>resistors and caps, and I would think there
>would be a single chip solution for this,
>possibly one that might also have a built-in ADC
>of 12 bits or more, and have an SPI interface.
>
>I know that Christmas is a ways off, but a chip
>like this would save us a lot of board space.
>Seeing that RTD interfacing is a very common
>application, one would think some chips would habdle this.
>
>Thanks all.
>----------
>
>No virus found in this incoming message.
>Checked by AVG - www.avg.com
>Version: 8.0.237 / Virus Database:
>270.11.15/2004 - Release Date: 03/16/09 07:04:00
>
>No virus found in this incoming message.
>Checked by AVG - www.avg.com
>Version: 8.0.238 / Virus Database:
>270.12.12/2090 - Release Date: 05/01/09 06:17:00
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
to it for much of my life (ex wife is first chair
french horn, mother was a pianist, grandfather
was an operatic singer) I just never picked it up myself (rebellion maybe?).
However, Midi I understand, its a protocol the
same as anything else. In fact its used in many
non-music applications as well (xmas lights spring to mind).
What do you have in mind?
At 11:43 AM 3/15/2009, you wrote:
>Hello,
>
>I need to hire a PIC programmer who is also a
>musician that fully understands MIDI.
>
>Company is in Michigan, but that doesn't mean you would have to re-locate.
>
>JT
>
>----- Original Message -----
>From:
>To:
>Sent: Sunday, March 15, 2009 3:06 PM
>Subject: RE: [piclist] RTD Interface chip needed
>
>Hi,
>
>I use the AD7705 for RTDīs.
>
>16 bits ADC and SPI.
>
>Van:
>
>[mailto:p...@yahoogroups.com] Namens S Bakaletz
>Verzonden: zondag 15 maart 2009 20:18
>Aan:
>Onderwerp: RE: [piclist] RTD Interface chip needed
>
>You would think that would be a common chip, but
>I've yet to find one. One option is to change
>
>to K-Thermocouples and use a MAX6675. The other
>is to use a RTD transmitter (Omega $75
>
>fits in protective head output 4-20ma) then use
>a PIC or A/D to get what you need. The upside
>
>is quick integration and they come already
>calibrated (What's your time worth). For a small
>
>batch it's probably the best way to go.
>
>Hi,
>
>I've got an application where an existing RTD
>interface circuitry needs upgrading, and I'm
>looking for a custom chip that will handle the
>current sourcing and amplification necessary.
>The current circuit is composed of op amps,
>resistors and caps, and I would think there
>would be a single chip solution for this,
>possibly one that might also have a built-in ADC
>of 12 bits or more, and have an SPI interface.
>
>I know that Christmas is a ways off, but a chip
>like this would save us a lot of board space.
>Seeing that RTD interfacing is a very common
>application, one would think some chips would habdle this.
>
>Thanks all.
>----------
>
>No virus found in this incoming message.
>Checked by AVG - www.avg.com
>Version: 8.0.237 / Virus Database:
>270.11.15/2004 - Release Date: 03/16/09 07:04:00
>
>No virus found in this incoming message.
>Checked by AVG - www.avg.com
>Version: 8.0.238 / Virus Database:
>270.12.12/2090 - Release Date: 05/01/09 06:17:00
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )