Ideal vs. Nonideal Op Amps: Difference between revisions
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New page: {| class="wikitable" border="1" |+ ! Ideal !! Nonideal |- | Infinite input impedance || Things beyond the scope of this class |- | Infinite open-loop gain A || Pure ugly |- | Zero gain fo... |
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! Ideal !! Nonideal | ! Ideal !! Nonideal | ||
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| Infinite input impedance || | | Infinite input impedance || Input impedance of about 1M Ω for IC op amps; as much as 10 <sup>12</sup>Ω for op amps with field effect transistor | ||
|- | |- | ||
| Infinite open-loop gain | | Infinite open-loop gain for the differential signal || Open-loop gain typically between 10<sup>4</sup>and 10<sup>6</sup> | ||
|- | |- | ||
| Zero | | Zero output impedance || Output impedance typically between 1 and 100 Ω | ||
|- | |- | ||
| Infinite bandwidth || Bandwidth typically limited by the designer to avoid oscillation | |||
| Infinite bandwidth || | |||
|} | |} | ||
==References== | |||
Electronics, Second Edition. Allan R. Hambley. | |||
[[Chapter 1]] - Greg Fong | |||
==Contributors== | |||
[[Lau, Chris | Christopher Garrison Lau I]] | |||
==Reviewers== | |||
*[[Ben Henry|Henry,Ben]] | |||
*[[Vier, Michael|Vier, Michael]] | |||
==Readers== | |||
Latest revision as of 23:36, 12 January 2010
| Ideal | Nonideal |
|---|---|
| Infinite input impedance | Input impedance of about 1M Ω for IC op amps; as much as 10 12Ω for op amps with field effect transistor |
| Infinite open-loop gain for the differential signal | Open-loop gain typically between 104and 106 |
| Zero output impedance | Output impedance typically between 1 and 100 Ω |
| Infinite bandwidth | Bandwidth typically limited by the designer to avoid oscillation |
References
Electronics, Second Edition. Allan R. Hambley.
Chapter 1 - Greg Fong