Precision OP AMP Sets Industry Robustness Standard | Analog

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Precision OP AMP Sets Industry Robustness Standard | Analog Devices
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20 August 2015... > ADI > 20 August 2015... > 10 Nov 14 Press Release
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Precision OP AMP Sets Industry
Robustness Standard
About The Author
Sarah Shieh
,
Nov 10 2014 - Norwood, MA
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Norwood, MA (11/10/2014) - Analog Devices, Inc.
(NASDAQ: ADI) introduced today
the industry’s first and most robust operational amplifier that integrates input
protection against
signalexcursions of 32 V
beyond the supply rails and 70-dB of
rejection
for electro-magnetic interference
(EMI) above 1 GHz. The ADA4177-2 dualchannel, precision, low-noise, low-input
operational amplifier was designed to
address system designers’ needs for a
sensor interface amplifier
with precision,
linearity and environmental immunity for
mission critical process control, defense,
aerospace and motor control applications
as well as multi-channel data acquisition
instrumentation designs.
Alliances
The ADA4177-2 is typically used in designs where the amplifier inputs
are exposed
to over-voltage and/or EMI and the need for improved precision or protection in the
signal chain is required. The ADA4177-2 integrates input over-voltage protection
(OVP) and EMI filters to protect signal integrity while maintaining system precision
and linearity. Watch this video to learn more: http://analog.com/ADA4177video.
Download ADA4177-2 data sheet, order samples and evaluation boards.
For more information about robust operational amplifiers and integrated
overvoltage protection read this technical article.
Get support at ADI’s EngineerZone™ online technical support community.
Find more resources and other featured products for process control and
industrial automation applications.
Problem Solved: Integrating OVP and EMI
In typical designs where an unprotected op amp is used at the front of the signal
chain and exposed to energetic voltage and electromagnetic
events, engineers often
use external clamping and filtering techniques.
These external components provide
only limited effectiveness and often compromise the resulting system’s precision and
accuracy over changes in temperature and common-mode voltage.
Using the ADA4177-2 at the front of the signal chain minimizes the impact of these
events by filtering out the EMI at the input to the op amp or limiting the in-rush
current of an over-voltage event to a safe level. This reduces the need for external
protection and filtering components, improving system accuracy and precision,
reducing BOM cost and circuit board footprint while improving time-to-market. In
addition,
the ADA4177-2 op amp’s rail-to-rail output adds value for designers that
need additional dynamic range.
http://www.analog.com/en/about-adi/news-room/press-releases/2014/11_10_14_Precision_Op_Amp_Sets_Industry_Robustness.html[10/9/2015 2:08:10 PM]
Precision OP AMP Sets Industry Robustness Standard | Analog Devices
The ADA4177-2 has a typical bandwidth of 3.5 MHz and 8-nV/ Hz voltage
noise at 1
kHz while consuming only 500 µA typical at 25°C with ±15-Vdc nominal power
supplies. It is specified to operate in the -40°C to +125°C temperate range.
ADA4177 -2 Dual Precision Operational Amplifier Key Features:
Low offset voltage: 60 µV maximum at 25°C
Low offset voltage drift: 0.7 µV/°C maximum
Low input bias current: 1.0 nA maximum at 25°C
Dual voltage supply operation:
o Specified at ±5 V to ±15 V
o Operation from ±2.5 V to ±18 V
Availability, Pricing and Complementary Products
Product
Full Production
Price Each per 1,000
Packaging
ADA4177-2
NOW
$1.53
SOIC-8 and MSOP-8
The ADA4177-2 precision operational amplifier is well suited to operate in signal
chains for robust environments with ADI’s switches and multiplexers, such as the
ADG5412F and ADG5409,
or with SAR A/D converters such as the AD7980 and
AD7988. For applications requiring a dual supply precision op amp with similar
specifications to the ADA4177-2 but where the inputs need not be protected from
OVP and EMI, consider the ADA4077-2.
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. 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.
EngineerZone is a trademarked term of Analog Devices, Inc
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Editor's Contact Information
Sarah Shieh
[email protected]
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http://www.analog.com/en/about-adi/news-room/press-releases/2014/11_10_14_Precision_Op_Amp_Sets_Industry_Robustness.html[10/9/2015 2:08:10 PM]
Precision OP AMP Sets Industry Robustness Standard | Analog Devices
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