Timeline for Ground in differential opamp situation
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 2, 2024 at 19:04 | comment | added | Tyassin | OK..Yes it could give the same result. But then you need a negative supply. But yes you need an extra supply either 2.5V or -2.5V If you have a dual opamp package then you could use the other to make the 2.5V offset from the 5V supply and then a voltage divider. | |
| May 2, 2024 at 18:57 | comment | added | Circuit fantasist | -V3 between ground and R1; R4 to ground. | |
| May 2, 2024 at 18:47 | comment | added | Tyassin | Hmm sorry I think I need to see what you mean. What would you connect to the inverting input? and/or change in the given circuit. When you say it would be a better solution, in what way? | |
| May 2, 2024 at 18:26 | comment | added | Circuit fantasist | I see... But you have a differential amplifier with only one of the circuit inputs (noninverting) used. Can't you also use the other (inverting) circuit input? It seems a better solution... | |
| May 2, 2024 at 18:21 | history | edited | Tyassin | CC BY-SA 4.0 | added 178 characters in body |
| May 2, 2024 at 18:19 | comment | added | Tyassin | Hi sorry did not mean to be silent. If the original question was to shift a -2.5V to 2.5V input signal to 0V to 5V. Then I would do as I suggested. I don't fully think I understand the connections you suggest? Is it for another circuit or add on to the differential amplifier? | |
| May 2, 2024 at 15:13 | comment | added | Circuit fantasist | Tyassin, It is not a good idea to remain silent in such cases (if you want to become a respected contributor to SE EE). | |
| May 1, 2024 at 5:05 | comment | added | Circuit fantasist | Maybe -2.5 V offset voltage to the inverting circuit input and Vin to the non-inverting circuit input? | |
| Apr 30, 2024 at 14:36 | history | answered | Tyassin | CC BY-SA 4.0 |