A new complete HART (highway addressable remote transducer) modem IC, rolled out by Analog Devices, enables HART connectivity in process control applications such as smart sensors and factory automation equipment.
The single-chip device requires very little power and is fully compliant with the HART communication protocol, which is the global standard for sending and receiving digital information across analog wires between smart devices and control or monitoring systems.
The AD5700 accurately encodes and decodes HART communication signals in noisy, harsh industrial environments, ensuring a reliable communication interface. It makes it quick and easy to implement products that can be registered with the HART Communication Foundation. The IC requires few external support components and incorporates an internal low-power 0,5% accurate oscillator, internal receive filtering and an internally buffered HART output.
In analog I/O modules, the reduction in board space made possible by the modem IC enables the per channel inclusion of HART without the need to increase system form factor. It is designed to interface easily with Analog Devices’ portfolio of data converters for industrial applications, such as the AD5755 D/A converter for analog I/O modules and the AD5421 D/A converter for loop-powered smart transmitter applications.
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