Timeline for tunable Wave form generator design with op-amps Multisim
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 2, 2016 at 15:39 | vote | accept | Abdo Saied Anwar | ||
| Feb 2, 2016 at 14:54 | comment | added | Andy aka | Virtually any op-amp is better than a 741 - look for one with a specified gain-band-width-product in the 10 MHz range. FYI a 741 is 1MHz but when used as a comparator (U1) in your circuit it is very slow at recovering from hitting the end stops as it switches. If you are happy to go surface mount then the AD8671 (single) or 72 (dual) or 74 (quad) is very good and will work down to a +/-5V supply. | |
| Feb 2, 2016 at 14:48 | comment | added | Abdo Saied Anwar | OK, keeping the average of the resistors solved the problem. you say 741 is not good at high frequencies. what do you suggest instead ? | |
| Feb 2, 2016 at 8:53 | history | answered | Andy aka | CC BY-SA 3.0 |