Timeline for Precision with opamp in transimpedance amplifier configuration with LED as photodiode
Current License: CC BY-SA 3.0
17 events
| when toggle format | what | by | license | comment | |
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| Jul 10, 2019 at 14:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 9, 2019 at 21:56 | answer | added | WhatRoughBeast | timeline score: 1 | |
| Jun 9, 2019 at 18:03 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Feb 4, 2019 at 22:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Apr 30, 2017 at 18:27 | comment | added | WhatRoughBeast | And how, exactly, do you know that your current is 100 nA? And discussions of bias currents at these levels as "blah blah" suggests that you have entirely the wrong attitude. Rejecting a discussion of your possible error sources at the same time you ask how to compensate for them is both arrogant and self-defeating, since it pretty much guarantees that nobody will take you seriously. | |
| Apr 30, 2017 at 16:57 | comment | added | user57037 | Sources of error in op-amp circuits is a large topic. | |
| S Apr 30, 2017 at 16:50 | history | suggested | try-catch-finally | CC BY-SA 3.0 |
Clarified title; mathjaxed symbols/equations; fixed typos; removed edit log and "excuse"
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| Apr 30, 2017 at 16:14 | review | Suggested edits | |||
| S Apr 30, 2017 at 16:50 | |||||
| Apr 30, 2017 at 15:13 | comment | added | Totally New | @ThePhoton : i mean the absorbance of a sample respect to a certain wavelength | |
| Apr 30, 2017 at 15:12 | comment | added | The Photon | What is "absorbance"? | |
| Apr 30, 2017 at 13:46 | history | edited | Totally New | CC BY-SA 3.0 |
added 15 characters in body
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| Apr 30, 2017 at 13:46 | comment | added | Totally New | both CV and VA opamp is OP07 . 1.003 is just an example . Sorry for the unclear question . I just want to ask how can i get the result more accurately | |
| Apr 30, 2017 at 13:25 | answer | added | dannyf | timeline score: 1 | |
| Apr 30, 2017 at 13:12 | answer | added | Scott Seidman | timeline score: 1 | |
| Apr 30, 2017 at 13:12 | comment | added | user2233709 | Sorry, but your question is not clear. What are CV and VA? And 1.003V instead of 1V is an error of 0.3%. Unless you are using resistors more accurate than 1%, you are lucky to get a reading that close to the theoretical value. | |
| Apr 30, 2017 at 13:09 | comment | added | Hearth | If you're using an LED as a photodetector, don't expect accurate results. | |
| Apr 30, 2017 at 13:04 | history | asked | Totally New | CC BY-SA 3.0 |