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THS4521 main amplifier common mode input impedance

Hello,

The data sheet for THS4521 provides the input impedance value (100 kOhm // 0.7 pF), but it seems to be the differential input impedance. What is the common mode input impedance? We guess it is at the order of THS4520's (2.7 MOhm).

Regards,

Michal

  • Michal Tyc,

    100k ohm || 0.7pF is the common-mode impedance.

    133k ohm || 1.05pF is the differential-mode impedance.

    Regards,

    Jim Karki

    TI High Speed Amplifiers

  • In reply to Jim Karki:

    Thank you very much.

    Michal

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