I don’t need something to fit each well but a universal one.Indeed LQC is correct. There is not really such a thing as a truly universal amplifier that would be useful.
When one size fits all, it fits none of them well.
What is required to be able to select or create an isolation amplifier we must know the signal voltage and the signal's source impedance, the common mode signal and it's source impedance, as well as the frequency of the desired signal. Capacitive isolation is one choice that in theory can provide adequate isolation, but in reality is a bit limited. Thransformer isolation can work fairly well if the signal is strong enough to be coupled thru an isolation transformer. But it does not work directly with DC signals.
Next is carrier modulation, which covers AC , lightwave, and magnetic field carriers. The signal to be isolated first modulated the carrier, which passes thru the isolation barrier, after which it is demodulated and restored to a representation of the original signal.
So there are manydifferent schemes each most suitable for a specific application, and each with different ranges of maximum voltage to isolate.
Certainly there are, and none of those devices is "universal".
I have quite a few shunt resistors, mostly one hundred amps, that have attached isolation amplifier boards that use a very nice IC , the Burr-Brown 6502, I think is the number. It is unique in that the power for the device is isolated from both the input and the output sides. It runs on 15 volts, I have not tried it on 12 or 13.4 volts.
We have requested a definition of what the TS is seeking and that is what we get back. The fact is that R&S is able to pdesign and produce products with amazing qualifications, and so I suggested them because I think that they can come closer than others..Please define universal.
I am using parts from many different places. Lets talk TI.com. Gain drift is 5 parts/million, the one I am using most is 30ppm.Stable drift free constant gain
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by Jake Hertz
by Jeff Child