Analog Devices introduces industry's lowest power complete HART Modem IC for process control applications
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Analog Devices introduces industry's lowest power
complete HART Modem IC for process control
applications
Analog Devices has 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 functionality.
http://www.anglia.com/newsarchive/article.asp?article_id=4039&acrobatPrint=yes (1 of 3) [10/07/2012 09:10:28]
Analog Devices introduces industry's lowest power complete HART Modem IC for process control applications
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.
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 temperature environments.
Click here to download a data sheet.
For more information, or details on the full range of Analog Devices products available from
Anglia, please email info@anglia.com
Alternatively, click on this link to go to the main Analog Devices section where you can view
other news articles and product data.
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This news article was originally published in July 2012.
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http://www.anglia.com/newsarchive/article.asp?article_id=4039&acrobatPrint=yes (2 of 3) [10/07/2012 09:10:28]
Analog Devices introduces industry's lowest power complete HART Modem IC for process control applications
8/11/11
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