Ideal vs. Nonideal Op Amps: Difference between revisions
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! Ideal !! Nonideal |
! Ideal !! Nonideal |
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| Infinite input impedance || Input impedance of about 1M |
| 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 |
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| Infinite open-loop gain for the differential signal || Open-loop gain typically between 10<sup>4</sup>and 10<sup>6</sup> |
| Infinite open-loop gain for the differential signal || Open-loop gain typically between 10<sup>4</sup>and 10<sup>6</sup> |
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| Zero output impedance || Output impedance typically between 1 and 100 Ω |
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| Zero gain for the common-mode signal || Poop |
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| Infinite bandwidth || Bandwidth typically limited by the designer to avoid oscillation |
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| Infinite bandwidth || beat up books |
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==References== |
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Electronics, Second Edition. Allan R. Hambley. |
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[[Chapter 1]] - Greg Fong |
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==Contributors== |
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[[Lau, Chris | Christopher Garrison Lau I]] |
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==Reviewers== |
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*[[Ben Henry|Henry,Ben]] |
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*[[Vier, Michael|Vier, Michael]] |
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==Readers== |
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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