Most Power Efficient Drivers For 12-, 14- And 16-bit A/D Converters Unveiled
23 September 2014 - 3:00PM
Business Wire
ADI’s ADA4805 family of amplifiers featuring
Dynamic Power Scaling provide best-in-class offset drift, slew
rate, noise and distortion performance for portable, battery
powered and high-density data acquisition equipment.
Analog Devices, Inc. (NASDAQ: ADI), a global leader in
high-performance semiconductors for signal processing applications,
today introduced a family of low-power rail-to-rail amplifiers for
high-speed data acquisition systems that require exceptional
accuracy, precision and power efficiency. For system designers who
are looking to achieve full datasheet specifications from high
resolution A/D converters, the ADA4805-1 (single) and ADA4805-2
(dual) amplifiers provide the only solution with quiescent current
as low as 495µA. The amplifiers’ Dynamic Power Scaling (DPS)
feature allows users to dynamically manage the power consumption by
shutting-down the amplifier between analog-to-digital converter
samples. This further reduces by up to 90 percent the power
consumption — with no performance degradation —when compared to
similar solutions. Watch this video to learn more about the
industry’s most power efficient A/D converter drivers
http://www.analog.com/ada4805video
- Order samples, evaluation boards or
download data sheets: http://www.analog.com/ADA4805
- Get questions answered by ADI engineers
on EngineerZone™, ADI’s online technical support community:
http://ez.analog.com/community/amplifiers
The 100-MHz ADA4805-1 and ADA4805-2 amplifiers achieve a high
slew rate of 160 V/μs, low noise (5.9 nV/√Hz at 100 kHz) and low
distortion (−102 dBc/−116 dBc HD2/HD3 at 100 kHz) while consuming
only 1.5 mW of power. The amplifiers are designed for
power-sensitive portable and battery-powered data acquisition
devices, such as handheld or portable test and measurement
instruments, battery-powered industrial equipment and remote
environmental monitoring devices. They can also be used to reduce
power and thermal dissipation in high-density applications such as
cellular base stations and medical imaging equipment.
With exceptionally low offset-voltage drift of 1.5µV/°C maximum
(0.2μV / 0C typical), the ADA4805 family offers eight times lower
drift performance than competing high-speed (100MHz) amplifiers.
The combination of superior ac and dc performance allow designers
to enhance system sensitivity, dynamic range and overall system
accuracy.
The ADA4805-1/-2 amplifiers have a wide voltage range,
supporting 3-V supplies, and in applications that require a wider
dynamic range can also operate on supplies as high as +/-5V.
Pricing, Availability and Complementary
Components
Product Number of Amps
Availability Temperature Range
Price Each Per 1K Packaging
ADA4805-1
1 NOW −40°C to +125°C
$1.05 SC70 ADA4805-1 1
NOW −40°C to +125°C $0.95
SOT23 ADA4805-2 2 NOW
−40°C to +125°C $1.64
MSOP ADA4805-2 2 October 2014
−40°C to +125°C $1.79 LFCSP
The ADA4805 family efficiently drive a variety of A/D converters
such as the AD7980 16-bit 1 MSPS; AD7091 ultra low-power 12-bit, 1
MSPS; AD7902 dual pseudo differential 16-bit 1 MSPS and AD7988
ultra low-power 16-bit SAR converters.
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:
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Analog Devices Inc.Sarah Shieh,
781-937-2572sarah.shieh@analog.comorPorter
NovelliAndrew MacLellan,
617-897-8270andrew.maclellan@porternovelli.com
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