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What is the input impedance of the CTRIO input?

ctrio impedance input
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What is the input impedance of the CTRIO input?

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On the input of the CTRIO is a JFET (Junction Field Effect Transistor) in a constant-current source arrangement. In this manner it guarantees the input current will be between 5-15mA for the range of 9-30V. So, the input impedance varies based on this characteristic.

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