HART & 4-20mA Loop Interface Devices

Analog Devices loop interfaces offer industrial outputs for 4 mA to 20 mA currents, bipolar and unipolar voltages, and HART output devices.

Our standalone loop interface driver solutions can be mated with our precisions DACs, while ADI integrated solutions combine both the DAC and driver in one chip to provide the required output directly from the digital domain. We also provide a line of HART-compatible modems to directly interface with our loop interface products, for enhanced communication. Our solutions address requirements for both loop and nonloop powered transmitters, and isolated and nonisolated analog I/O cards.

HART Modem

Analog Devices offers a family of HART® modems and complementary converters that can be used together to realize a robust, accurate, and HART Foundation registered solution.

Industrial 4-20mA DAC Solution

ADI's portfolio of industrial d/a converters provides a range of programmable output ranges from standard 4 mA to 20 mA for current loop communication to ±10 V for actuator control.

Industrial 4-20mA Driver

ADI’s industrial d/a converters and drivers provide a range of programmable output ranges from standard 4 mA to 20 mA for current loop communication to ±10 V for actuator control.