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PGA280 / Input Overvoltage (IOVerr)

S.Satoshi
Guru 21675 points
Other Parts Discussed in Thread: PGA280

Hi All,

Please let me ask about Input Overvoltage (IOVerr).

  • Please confirm the threshold of IOVerr. I can't find it in datasheet.
  • Is this function just only set flag or protect (clamp) in addition?

Best Regards,

Sonoki / Japan Disty

  • 0
    TI__Mastermind 27715 points

    Hello Sonoki-san,

    To prevent triggering IOVerr, ensure that the input voltage remains between (VSN + 2.5V) and (VSP - 2.5V). IOVerr is not a clamp, only an error flag. However, the PGA280 input pins do have internal diodes connected to VSP and VSN which activate when the input signal exceeds VSP or VSN.

    Best regards,

    Ian Williams
    Linear Applications Engineer
    Precision Analog - Op Amps