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Digital I/O ground potential

Model 2651A
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shoverbj
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Digital I/O ground potential

Post by shoverbj » January 12th, 2018, 11:42 am

I have looked through the manuals and am unable to find an answer for this.

Are the ground pins of the digital I/O port (the DB-25) of the 2651a at the same potential or different potential from the negative (LO) output pin?

Andrea C
Keithley Applications
Keithley Applications
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Re: Digital I/O ground potential

Post by Andrea C » January 15th, 2018, 8:13 am

The SMU LO is isolated from the chassis ground. The common mode isolation spec is 'greater than 1GOhm and less than 4500pF'.

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