well,u shud have come across such a circuit in some text , now basically in any text on ckt theory , they wud introduce buffers to show that buffering is required for matching impedances and thus reducing the loading . Now it is not necessary to use opamps for providing buffer action . Now FETs or BJTs (discrete components) in proper feedback configurations can be used effectively for buffering action . But usually in a signal conditioning ckt , after we filter out i/p noise we have to increase the signal over the noise floor by using a gain stage . Then an opamp wud provide a more cost effective solution . But still it depends upon what kind of a ckt u r doing . Hope this was what u wantedOriginally posted by ajayrd@Nov 18 2004, 12:14 PM
i came across circuit where opamp is used as a buffer amplifier in the signal conditioning circuit .
is it really required to use OPAMP as a buffer amplifier?
can we use any other device to buffer the signals?
|Thread starter||Similar threads||Forum||Replies||Date|
|E||I'm so confused with my OPAMP BUFFER malfunction.||Power Electronics||4|
|R||Oscillations on output of loaded LM675 for all positive voltages.||Analog & Mixed-Signal Design||4|
|Inverter Buffers - Find CIn & CLoad, FanIn & FanOut||Digital Design||1|
|S||Op-Amp buffer Enable/Disable||Automation, Robotics & Control||16|
|Buffer with pot||General Electronics Chat||6|
by Jake Hertz