Analog Devices Introduces Industry’s Lowest Power Complete
HART Modem IC for
Process Control Applications
February 16, 2012 Press Release
Feb. 28, 2012 13:00 UTC
Analog Devices, Inc., (ADI) a global leader in high-performance semiconductors
for signal processing applications, today introduced a complete HART (Highway Addressable Remote Transducer) modem
IC (integrated circuit) that enables HART connectivity in process control applications such as smart sensors and
factory automation equipment. The single-chip device requires the lowest power in the industry 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 HART modem IC
is Analog Devices’ first complete IC offering for HART Communication and is compliance registered with the
HART Communication Foundation.
“The AD5700 HART modem IC has been tested by the HART Communication Foundation to verify that products designed
with the new ADI device will adhere to HART protocol requirements,” said Ron Helson, executive director, HART
Communication Foundation. “Compliance with HART protocol requirements is important so users worldwide can gain
quick, easy visibility to devices in the field when using HART-enabled handheld test, calibration devices,
computers and automation systems.”
The AD5700 HART modem IC accurately encodes and decodes HART
communication signals in noisy, harsh industrial environments, ensuring a reliable communication interface. The
AD5700 HART modem IC makes it quick and easy to implement products that can be registered with the HART
Communication Foundation. The new modem IC requires 60 percent less external support components and is the first
to incorporate an internal low-power 0.5 percent accurate oscillator, internal receive filtering and an internally
buffered HART output, providing a greater than 75 percent saving in board area over competing products. In analog
I/O modules, the reduction in board space made possible by the AD5700 modem IC enables the per channel inclusion
of HART without the need to increase system form factor. The device consumes 38 percent less power than
alternative solutions, and this power savings enables system engineers designing smart sensor applications to
reduce their power budgets, lower system costs and optimize board space to accommodate supplementary
The AD5700 HART modem IC is designed to interface easily with ADI’s innovative 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. ADI has also developed a fully
functional smart transmitter demo system featuring the AD5700 HART modem IC that is compliance tested, verified
and registered with the HART Communication Foundation as an approved HART solution.
AD5700 HART Modem IC Key Features and Benefits
Integrates in a single chip all the
necessary filtering, signal detection, modulation, demodulation and signal generation functions needed to achieve
HART connectivity, so designs require few external support components.
Integrated, low power, 0.5 percent accurate oscillator is a compact alternative to a discrete crystal.
Meets the industry standard for physical layer protocols set by the HART Communication Foundation and simplifies
design challenges by accounting for all physical layer requirements.
Specified for a wide industrial temperature range of –40°C to +125°C, enabling use in high and low
Pricing and Availability
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 technologies, Analog
Devices serves over 60,000 customers, representing virtually all types of electronic equipment. A leading global
manufacturer of high-performance integrated circuits for analog- and digital-signal processing applications,
Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the
world. Analog Devices' common stock is listed on the New York Stock Exchange under the ticker “ADI” and is
included in the S&P 500 Index.
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Date Posted 2/16/2012