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Multiple channel current measurement technique through analog multiplexer | Cypress Semiconductor

Multiple channel current measurement technique through analog multiplexer

Last Updated: 
Dec 03, 2010

Many embedded systems require precise current measurement from different sensors for variety of applications. Most of the current measuring sensors like Photo diode, Fuel sensor provides output range from 10nA-20mA. Sensors which give current outputs are preferred over voltage output sensors because of higher noise tolerance and have longer cables. This article describes a method for measuring current from multiple input channels using an analog multiplexer.