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Externally triggering the ADC 212/3

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Externally triggering the ADC 212/3

Postby Guest » Mon Oct 04, 2004 5:44 pm


I cannot use a 1 volt, 20 msec, 50 kHz tone burst to externally trigger the ADC 212/3. What are the minimum requirements for the trigger pulse?

External trigger level

Postby Autonerdz » Mon Oct 04, 2004 11:21 pm

The external trigger levels are fixed values. You can adjust for delay and slope but not level.

Positive slope external trigger level is about 3 volts.

Negative slope external trigger level is about 1.8 volts.

Your input will have to reach these levels to be compatible with external trigger. Hope this helps.
Tom Roberts
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