应用功能：Loop-Powered 4–20 mASensorTransmitter The AD693 is a monolithic signal conditioning circuitwhichacceptslowlevelinputsfromavarietyoftransducers to control astandard 4–20 mA, two-wirecurrent loop. An on-chipvoltagereference and auxiliaryamplifier are provided for transducerexcitation; up to 3.5 mA of excitation current is available when thedevice is operated in the loop-powered mode.
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