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ada4530 Input Protection

Question asked by nngogogo on Jul 31, 2018
Latest reply on Aug 1, 2018 by Emman.A

I use an ADA4530-1 with a 500G Ohm Res for low-level current measurement, When using a keithley 6430 as a current source, I found the chip is often damaged when switching the source range or source on/off. A 1M Ohm res is in series with the inverting input pin and input protection diodes of the chip consist the protection circuit. So what else should I do for the protection?

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