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NI USB-6212 DO to trigger an instrument which has a trigger input 3.3V LVCMOS

Hi all,

I am using a the USB-6212 board and I want to use a digital output to trigger another instrument. The trigger input of that instrument is indicated to be a 3.3V LVCMOS. Can I directly apply the 5 volts from the digital output without damaging that instrument? Would it be better to use an attenuator (or voltage divider) after the DO port to reduce the voltage down to 3.3 V?

Thanks.

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Use a logic level shifter such as this: SN74LVCC4245APWR.  Note that there are lots of other level shifting chips out there, this is just the one I have had the most success with.  I think Sparkfun also has a board that might do the trick for you.


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