Timeline for Need for Buffering Signals ?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 31, 2015 at 14:18 | vote | accept | Dallas Carter | ||
| Mar 27, 2015 at 21:20 | comment | added | tcrosley | @DallasCarter Correct about the voltage divider, that's a very common use for it. The output is not going be zero, but very close to it; see this answer. | |
| Mar 27, 2015 at 20:31 | comment | added | Dallas Carter | Thanks, to make sure I am understanding this correctly, by combining all the answers , it seems that due to the High Input impedance(of Opamp), R2 in the voltage divider becomes very large and hence the source impedance doesn't impact the output readings . And combining your answer , it is used so as to eliminate the source impedance and provide a zero(almost) impedance signal(at the output of the op-amp). Correct ? | |
| Mar 27, 2015 at 19:45 | history | answered | tcrosley | CC BY-SA 3.0 |