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Signal Chain Solution For 4-mA To 20-mA HART Enabled Field Instrument Applications (Graphic: Business Wire)

Stocks in this article: ADI

Analog Devices, Inc. (NASDAQ: ADI) introduced today 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.

• To buy and evaluate this circuit and download the application note and watch the video: http://www.analog.com/CN0267

• Connect with engineers and ADI product experts on EngineerZone™, an online technical support community: http://ez.analog.com/community/circuits_from_the_lab

• Find application notes and technical articles about field instrument solutions from ADI: http://processcontrol.analog.com/en/field-instruments-smart-transmitters/segment/pcia.html

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.

About the CN0267 Circuit Design

CN0267 combines three of ADI’s lowest power, high performance components, optimized for field instrument designs;

The ADuCM360, a low power, fully integrated, 3.9-kSPS, 24-bit data acquisition system-on-a-chip incorporating dual, sigma-delta A/D converters, a 32-bit ARM Cortex TM M3 MCU, and flash/EE memory. Using less than 1-mA of operating current it delivers more processing-per-mW of power than any other analog microcontroller within its class.

The AD5421, is a complete, loop powered, 16-bit, 4-mA to 20-mA DAC that incorporates a programmable voltage regulator used to power the demonstration board. The AD5421 consumes less than 300-µA of quiescent current providing a 50 percent power saving and a 55 percent footprint saving over competing offerings.

The AD5700 is a complete HART modem IC, consuming 38 percent less power and supporting a greater than 75 percent saving in board area over alternative products.

Pricing, Availability and Complementary Components

                       
Product         Sample        

Full Production

 

       

Price Each Per 1000

DEMO-AD5700D2Z

                  NOW         $90 (per unit)

AD5421BREZ

        NOW         NOW         $ 5.55

AD5700BCPZ-RL7

        NOW         NOW         $4.45

ADUCM360BCPZ128

        NOW         NOW         $8.58
                               

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices' is included in the S&P 500 Index.

Follow ADI on Twitter at http://www.twitter.com/ADI_News

To subscribe to Analog Dialogue, ADI's monthly technical journal, visit: http://www.analog.com/subscribe .

Photos/Multimedia Gallery Available: http://www.businesswire.com/multimedia/home/20130325005047/en/

Copyright Business Wire 2010

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