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J2111A voltage limitation (Vout ≤ 1.5V) for Reverse Transfer Measurement

I have a question regarding measuring Reverse Transfer/Crosstalk:

In your Power Integrity book, in chapter 10 this is nicely explained about cal and measurement setup but both of these setups are using J2111A which is limited to 1.5V.

What can I do in order to measure Reverse Transfer for lower voltages than 1.5V?

Thanks

Ivan

1 comment

1 Comment

steve

Jul 31, 2021

There are some eloads that can be modulated, though I don't really care for them. We do hope to make a lower voltage current injector in the future. We have modified the J2111A for a few customers to go down to 0.7V, but that involves removing the steering network, so you lose the negative power supply support.