2007-06-19 05:25:12 · 3 answers · asked by nasirbd633 1 in Science & Mathematics ➔ Engineering
It provides a very high impedance load to the source driver, and presents a very low output impedance to the load. This way the input is not "loaded down", which may affect its operation, and the load may be varyed and still see the intended signal voltage from the source.
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2007-06-19 06:28:35 · answer #1 · answered by tlbs101 7 · 1⤊ 0⤋
present day op amps have an open loop voltage great thing approximately a minimum of 10,000. hence, for usual operation interior the linear area, the voltage difference between to inputs is basically 0. device amps are designed to boost the version between the inputs by utilizing a programmable great thing approximately a million to one hundred or so. this implies there will be a voltage difference between the inputs. on your situation you ought to use an device amp, because of the fact it is going to likely be possibly that the return isn't at precisely 0 volts. be certain to reference your 2 dividers to the amp circuit floor and that the intense element of the line is hooked as much as the best of the divider. Connecting directly to the a hundred and ten volts skill source could nicely be a protection situation in case you go incorrect, or if the polarity of this is reversed (finally).
2016-10-18 01:00:31 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Isolation between stages sometimes with a signa inversion. It could keep an oscillator from having its frequency pulled because of variable loading.
2007-06-19 05:38:41 · answer #3 · answered by Gene 7 · 1⤊ 0⤋