Timeline for OpAmp configuration with gain less than 1
Current License: CC BY-SA 3.0
4 events
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| Jun 6, 2014 at 7:50 | comment | added | LvW | @Naz, yes - that´s what I mean. However - as mentioned in the comment above, stability will be degraded and some additional stabilizing means are perhaps necessary. Hence, it is not clear which of the two methods will be advantageous. But that is a normal situation in case of sveral solution alternatives, because very often a trade-off is necessary because of conflicting requirements. | |
| Jun 5, 2014 at 21:55 | comment | added | Spehro 'speff' Pefhany | The gain of two amplifier has to swing to both rails, so it would have to be RRIO. Stability (phase margin) might be an issue. | |
| Jun 5, 2014 at 20:18 | comment | added | Nazar | Do you mean the first one will be a buffer, but instead of shorting Vin- with Vout, place another stage of G=+2? Since they say that for this particular case using a simple voltage divider is not such a bad idea, would the two-opAmp approach be more advantageous? | |
| Jun 5, 2014 at 19:52 | history | answered | LvW | CC BY-SA 3.0 |