USA: Analog Devices Inc. has introduced the CN0267 demonstration circuit for a loop powered HART (Highway Addressable Remote Transducer) enabled smart transmitter, for industrial applications that need to operate within a set 3.5-mA power budget.
This field instrument circuit demonstrates a complete low power, high precision signal chain solution with minimum area overhead, which has been tested and verified by ADI as part of their Circuits from the Lab reference circuits’ initiative.
This circuit has been compliance tested, verified and registered as an approved HART solution by the HART Communication Foundation. This ensures that systems designed with these ADI devices will adhere to HART protocol requirements and that DEMO-AD5700D2Z is a proven, tested solution.
Combining the lowest power components in their class, this solution enables system engineers to support increased system functionality including the communications of diagnostics and additional measurement or calibration data. The 7-cm by 2.3-cm CN0267 PCB demonstrates a direct sensor interface, microprocessor and two-way HART communication over a 4- 20-mA loop.
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