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Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt (one joule per second). Use this tag where power is a primary concern for the design under discussion. Use the "low-power" tag when that applies.
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Power supply of isolation amplifers
First time experimenting with a design with isolation amplifiers and I am unsure about the amplifier power supply range I need.
I need to provide isolation to measure a current between 0 and 7.4mA. … Does it mean I need a negative power supply on the hot side or a divider resistor on my signal to move it away from zero when I need to measure a zero current? …