Timeline for How do you determine the input impedance for an inverting amplifier?
Current License: CC BY-SA 3.0
26 events
| when toggle format | what | by | license | comment | |
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| Jan 17, 2022 at 7:43 | answer | added | Antonio51 | timeline score: 1 | |
| Mar 9, 2017 at 18:04 | history | edited | CommunityBot |
replaced http://3.bp.blogspot.com/ with https://3.bp.blogspot.com/
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| Jun 11, 2015 at 16:08 | comment | added | endolith | "I know that the output impedance of the amplifier itself is very high." output impedance is low, not high. | |
| Oct 29, 2012 at 12:30 | vote | accept | Magpie | ||
| Oct 29, 2012 at 11:57 | vote | accept | Magpie | ||
| Oct 29, 2012 at 12:30 | |||||
| S Oct 29, 2012 at 9:52 | history | suggested | placeholder | CC BY-SA 3.0 |
fixed title
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| Oct 29, 2012 at 5:48 | review | Suggested edits | |||
| S Oct 29, 2012 at 9:52 | |||||
| Oct 29, 2012 at 3:01 | history | tweeted | twitter.com/#!/StackElectronix/status/262751049796968449 | ||
| Oct 29, 2012 at 3:01 | comment | added | Connor Wolf | @NickAlexeev - But there's better op-amps for that too! Besides, it's easier to start with a device where you don't really need to worry about input bias currents, etc..., at least until you have a decent grasp of the basics. | |
| Oct 29, 2012 at 2:51 | comment | added | Nick Alexeev | @FakeName Possibly, the sensei insisted on 741 to get better feel for nuisances. | |
| Oct 29, 2012 at 2:51 | comment | added | Magpie | Because they are cheap and it is just for learning purposes. | |
| Oct 29, 2012 at 2:45 | comment | added | Connor Wolf | Why are you using a 741? That's an *ancient (and pretty crappy, by modern standards) op-amp. Something like a TL081 or similar is more available and much better in performance. | |
| Oct 29, 2012 at 2:37 | answer | added | Nick Alexeev | timeline score: 7 | |
| Oct 29, 2012 at 1:51 | history | edited | Magpie | CC BY-SA 3.0 |
further explained problem
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| Oct 29, 2012 at 1:45 | comment | added | Magpie | @NickAlexeev two things I wanted to understand. That was one of them, but it's been answered now. However, the main thing I need is how to define the input impedance so I can build a 741 with the right resistances. | |
| Oct 29, 2012 at 1:39 | history | edited | Nick Alexeev |
edited tags
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| Oct 29, 2012 at 1:38 | comment | added | Nick Alexeev | Are you trying to get a better understanding of why compensation resistor \$R_{3}=\frac{R_1R_2}{(R_1+R_2)}=R_1||R_2\$ ? | |
| Oct 29, 2012 at 1:27 | history | edited | Magpie | CC BY-SA 3.0 |
forgot to type part of a sentence
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| Oct 29, 2012 at 1:26 | answer | added | Dave Tweed | timeline score: 3 | |
| Oct 29, 2012 at 1:19 | review | First posts | |||
| Oct 29, 2012 at 5:49 | |||||
| S Oct 29, 2012 at 1:18 | history | edited | Dave Tweed | CC BY-SA 3.0 |
put image inline
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| Oct 29, 2012 at 1:18 | answer | added | Alfred Centauri | timeline score: 7 | |
| Oct 29, 2012 at 1:17 | review | Suggested edits | |||
| S Oct 29, 2012 at 1:18 | |||||
| Oct 29, 2012 at 1:13 | history | edited | Magpie | CC BY-SA 3.0 |
added picture
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| Oct 29, 2012 at 1:04 | comment | added | Nick Alexeev | Re: picture. Upload the picture to some hosing on the web (flickr and such). Edit your post and add a link to the picture. Somebody with enough rep will edit your post (again) and inline the picture. | |
| Oct 29, 2012 at 0:59 | history | asked | Magpie | CC BY-SA 3.0 |