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TLE2062 Output Impedance

Shihab
Expert 1195 points
Other Parts Discussed in Thread: TLE2062AM

Hi,

The open loop impedance of TLE2062AM is given as 560 ohm.

Why it is very less in Figure 23?

Thanks,

Shihab.

  • 0
    TI__Guru 63600 points

    Shihab,

    The curves below show the close-loop output impedance for different gains BUT with the increase in frequency, as the op amp runs out of loop-gain, they should all collapse on the value equal to open-loop output impedance of 560 or 280 ohms; this is properly shown in the graph on the left but NOT in the graph on the right; I believe in the latter case, the vertical axis has been corrupted and incorrectly expressed on a linear instead of logarithmic scale.