THS4521 main amplifier common mode input impedance

Michal Tyc

Other Parts Discussed in Thread: THS4520, THS4521

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

over 12 years ago

0 Jim Karki over 12 years ago

TI__Expert 4115 points

Michal Tyc,

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

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

0 Michal Tyc over 12 years ago in reply to Jim Karki

Prodigy 140 points

Thank you very much.

Michal

Amplifiers

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THS4521 main amplifier common mode input impedance