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Tool/software:
Hello team,
My customer is evaluating OPA828. The electrostatic discharge of OP828 is ±2000V. But some opamp (ex OPA192) cases are ±4000V.
Best regards,
Shotaro
1. Yes.
2. Yes.
In general, built-in ESD protection is designed only for ESD events that happen during automated manufacturing, and for applications where the signals can be touched by a human or are (un)plugged, you need additional protection.
That depends on how much ESD you expect (in the test or for real), and how much capacitance/resistance you can afford on the signal line.
Shotaro,
I agree with Clemens. Thanks to his excellent comments and support.
Here are some discrete ESD protection devices: https://www.ti.com/passive-discrete/diodes/esd-protection-diodes/products.html
Here are some TVS (transient voltage suppressor diodes): https://www.ti.com/passive-discrete/diodes/tvs-diodes/products.html
Both can be effective against ESD however TVS diodes are designed to help protect against a wide range of different overstress events, but ESD protection diodes are more limited to ESD protection only.
Normally this kind of protection also includes a series resistor to limit current under fault conditions. Op amp precision labs covers input protection under the ESD and EOS sections.
best regards, Art