Industry’s Fastest 40-V Amplifier Significantly Improves System Performance, Power Efficiency and Integration
17 Juni 2014 - 3:00PM
Business Wire
Analog Devices’ ADA4870 amplifier delivers more
than 2x higher slew rate than competing high output-power driver
amps.
Analog Devices, Inc. (NASDAQ: ADI), a global leader in
high-performance semiconductors for signal processing applications,
today introduced the industry’s fastest operational amplifier for
driving heavy loads at high voltage and high output current,
including piezoelectric transducers, PIN diodes, laser diodes,
power FETs, coils and CCDs. The 40-V ADA4870 amplifier delivers
over 1A of output current at more than twice the slew rate (2500
V/μs) of competing high output-power amplifiers, enabling
applications including higher accuracy, high-intensity focused
ultrasound (HIFU) for medical equipment and higher efficiency
envelope tracking solutions in small-cell base stations and
military radios. Watch this video to learn more about the ADA4870
high speed, high voltage amplifier:
http://analog.com/ADA4870video
“We recently introduced an industry leading, highly efficient
envelope tracking product line aimed at small-cell RF transmitters
that must deal with complex waveforms, such as LTE,” said Dave
McIntosh, general manager, KCB Signal Solutions. “We developed one
of our key compact circuits using Analog Devices’ ADA4870
amplifier, the only device with the ability to amplify our
high-speed current and voltage waveforms while driving a low
impedance load. The ADA4870 allows us to provide envelope tracking
power amps with efficiencies exceeding that of class A/B and
Doherty solutions.”
- Order samples, evaluation boards or
download data sheets: http://www.analog.com/ADA4870
- Get questions answered by ADI engineers
on EngineerZone™, ADI’s online technical support community:
http://ez.analog.com/community/amplifiers
ADA4870 Improves System Performance and Cost
In HIFU equipment used for medical treatment and procedures, the
ADA4870 provides wide bandwidth (52 MHz) and high slew rate to
facilitate the high-voltage pulses necessary to drive the
piezoelectric transducer, increasing accuracy and replacing large,
costly discrete solutions. In small-cell base stations and compact
military radios, the ADA4870 improves power efficiency and extends
battery life by assisting with the drive of the power amplifier’s
(PA) low impedance bias control to track the envelope of the RF
signal, only using as much power for the PA as needed to pass the
signal. In addition to HIFU and RF envelope tracking, the fast
ADA4870 can be used to improve the driving of various
high-capacitive and low-resistive loads including extending the
bandwidth of high-voltage function generators and increasing
automated test equipment drive capability and testing speeds, all
while reducing solution size and cost.
ADA4870 Key Features
- High output current drive: 1 A
- Wide supply range: 10 V to 40 V
- Wide output voltage swing: 37 V swing
with 40 V supply
- High slew rate: 2500 V/μs
- Wide bandwidth: 52 MHz
Pricing and Availability
Product Volume
Availability
Temperature Range
Price Each Per 1K Packaging
ADA4870
NOW −40°C to +85°C
$8.50 20-lead PSOP
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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EDITORS ONLY CONTACT:Analog Devices Inc.Sarah
Shieh,
781-937-2572sarah.shieh@analog.comorPorter
NovelliAndrew MacLellan,
617-897-8270andrew.maclellan@porternovelli.com
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