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Diagram for using LM35 with USB ADC-11

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Diagram for using LM35 with USB ADC-11

Postby lmdthel » Sat Jan 03, 2009 12:07 pm

Hi Guys

Does anybody have an diagram of how to connect an LM35 to the ADC-11?

///Thomas
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Postby gruntman » Thu Jan 15, 2009 11:11 pm

Thomas,

The ADC-11 terminal board manual shows how to connect the LM35 to the ADC-11's terminal board. You may view this diagram online at http://www.picotech.com/document/pdf/ad ... ons-en.pdf.

Regards,

Richard Boyd
Crag Technologies, Inc
http://www.pc-oscilloscopes.com
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Re: Diagram for using LM35 with USB ADC-11

Postby olepagh » Sat Jan 24, 2009 9:27 pm

lmdthel wrote:Hi Guys

Does anybody have an diagram of how to connect an LM35 to the ADC-11?

///Thomas


My experience comes from using ADC-16 and ADC-24:

If you need to measure temperatures below zero degrees Centigrade, you need a negative supply too, and if your cable length is more than 2-4 meters you also need to apply a RC filter near the sensor.
Take a look at National Semiconductor's data sheet. The data sheet have a lot of application notes too.
Google for 'LM35 datasheet'
A cheap alternative for the LM35 is the LM19, which does not need a negative supply, but instead a little bit of a converting formula entered in the PicoLog program.
/ Best regards
Ole
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