Information about Current-to-Voltage Converters

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About Current-to-Voltage Converters

Current-to-voltage converters are electronic devices that convert current signal inputs to proportional voltage outputs. They include an operational amplifier for simple linear signal processing and a resistor for dissipating current. The resistance between the operational amplifier’s input and output determines the voltage range for specific current signals. Additional circuitry such as an instrumentation amplifier removes small amounts of reverse or dark current. In current-to-voltage converters that handle a range of currents, design considerations account for the DC offset caused by both the input device and the operational amplifier. To remove unwanted signals, current-to-voltage converters often include passive filters that use only capacitors or active filters that use gain and feedback.

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