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THS4521 main amplifier common mode input impedance
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).
100k ohm || 0.7pF is the common-mode impedance.
133k ohm || 1.05pF is the differential-mode impedance.
TI High Speed Amplifiers
Thank you very much.
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