PCAN-MicroMod Analog 2 - output scaling

Application-specific PCAN-MicroMod Motherboards
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IcyTexx
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Joined: Wed 6. Nov 2019, 13:55

PCAN-MicroMod Analog 2 - output scaling

Post by IcyTexx » Fri 13. Mar 2020, 14:54

Hello.

PCAN-MicroMod Analog 2 has four analog outputs, each rated 0-10V, based on 12-bit DAC, so it's able to discretize 0-10V to 4096 values. Our specific project needs a voltage range 1.2-3.7V on one output/input, and the resulting number of steps Analog 2 can produce is not enough to achieve wanted precision. Is it possible (recommendable) to scale the output with a resistor that's dimensioned exactly the same as the Analog 2's output, so it would divide the voltage by a factor of 2, meaning we'd have 4096 steps between 0-5V?

Thanks!

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G.Bohlen
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Hardware Development
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Joined: Wed 22. Sep 2010, 21:38

Re: PCAN-MicroMod Analog 2 - output scaling

Post by G.Bohlen » Mon 16. Mar 2020, 12:21

Hello,

the 4 ch. DAC used for anaog output has a range of 0...4.096V. The output amplifier has a gain of 2.44 to produce an output voltage of 0..10V.
It is possible to change the gain to 1 to get an output of 0...4.096V (replace a feedback resistor by 0R).
If this is a option for your case please contact us again for the details.

Regards,
Gunnar Bohlen

IcyTexx
Posts: 2
Joined: Wed 6. Nov 2019, 13:55

Re: PCAN-MicroMod Analog 2 - output scaling

Post by IcyTexx » Wed 25. Mar 2020, 11:55

Great, that would solve our problems! Could you send me some more info or guidelines on what to do?

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G.Bohlen
Hardware Development
Hardware Development
Posts: 46
Joined: Wed 22. Sep 2010, 21:38

Re: PCAN-MicroMod Analog 2 - output scaling

Post by G.Bohlen » Wed 25. Mar 2020, 12:31

Hello,

please send a Message to support(at)peak-system.com with a reference to this thread.
You will get a description how to modify the baseboard PCAN-MicroMod Analog2 to change the analog output gain to 1 to reduce the output votage range.

Regards,
Gunnar Bohlen

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