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our pressure transmitter are mainly formed by your PGA309 programmable conditioner and power supply chip TPS7A41. in order to pass electrically fast transient test, we add some ferrite beads and TVS etc. see attached file below.
but the voltage output changes about from 1V to 2V even to 3V when the applied voltage reaches 3kV.after the test, the voltage output returns to 1V and no components are damaged.
our aim is 4kV,could you give me some advices?
Here are some tips to ensure that their design passes the EFT tests, as well as other EMC tests:
You can refer to these CerTIfied TI Precision Designs for more examples on how to pass EMC tests:
Ian WilliamsLinear Applications EngineerPrecision Analog - Op Amps
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In reply to Ian Williams:
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