Transcription of Low-Voltage Current Loop Transmitter - TI.com
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Low-Voltage Current Loop Transmitter - TI.com
ADC101S021, adc121s021 ,LM94022,LMP8270,LM V951,LP2951 Low-Voltage Current Loop TransmitterLiterature Number: SNOA865 Feature Pressure Force Load Factory Automation Design PATH designer Tips, tricks, and techniques from the analog signal-path expertsThe 4 to 20 mA Current loop, which is used extensively in industrial and process control systems, creates challenges for maximizing theoperating loop length. In some cases, a very long loop is required andthe combination of limited loop-power supply voltage and excessive loopwire resistance prevents it use. This article discusses the use of low-voltageamplifiers to minimize the Transmitter s operating voltage requirements,which will maximize the operating loop length. Typically, the Current loop is powered from the receiver side while the Transmitter controls the Current flowing in the loop to indicate the value ofthe physical parameter being measured by the sensor.
ADC101S021,ADC121S021,LM94022,LMP8270, LMV951,LP2951 Low-Voltage Current Loop Transmitter Literature Number: SNOA865
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