New Single, Dual and Quad Devices Address Industrial, Medical, and Test and
Measurement Applications
SANTA CLARA, Calif., April 25 /PRNewswire-FirstCall/ -- National
Semiconductor Corporation (NYSE: NSM), a leading supplier of
high-performance analog signal-path products, today introduced the LMH7322,
a dual comparator that provides the industry's lowest power (21 mA typical)
with sub-nanosecond (700 ps) propagation delay. The LMH7322 joins the
LMH7220 single comparator as part of a new family of single, dual and quad
high-speed comparators that feature low-voltage differential signaling
(LVDS) and reduced-swing positive emitter-coupled logic (RSPECL) outputs.
National will begin sampling a quad comparator with similar specifications
to the LMH7322 in fall 2007.
National's comparators offer industry-leading power and performance
specifications for a wide range of industrial, medical, and test and
measurement applications, including oscilloscopes, automated test equipment
(ATE) and positron emission tomography (PET) scanners. The LMH7322 features
ultra-fast 700 ps propagation delay and dispersion of 5 ps at >100 mV
overdrive, which allows fast and accurate delay control. Separate input and
output supply pins enable level-shifting applications, while the devices'
typical low power consumption of 21 mA makes the LMH7322 well-suited for
power-sensitive applications. The LMH7220's 2.9 ns typical propagation
delay and 0.6 ns rise and fall times consume only 6.8 mA supply current at
5V. Both parts offer guaranteed performance from -40 degrees C to 125
degrees C.
Technical Features of the LMH7220 Single Comparator
The LMH7220 is a high-speed, low-power single comparator with an
operating supply voltage range of 2.7V to 12V for flexible supply options.
Its LVDS output drives 325 mV into a 100-Ohm symmetrical transmission line,
allowing a balanced output with reduced noise immunity and electromagnetic
interference (EMI) for interfacing to field-programmable gate arrays
(FPGAs) and application-specific integrated circuits (ASICs) with LVDS
inputs. National is the world's largest supplier of high-speed LVDS
products, according to Databean's 2006 Analog IC Market Share survey. The
LMH7220 has a wide input voltage range that is able to extend from 10V to
200 mV below ground, which allows for ground sensing. LVDS outputs optimize
power consumption compared to differential outputs such as emitter-coupled
logic (ECL). Due to the output drive characteristics, the power consumption
remains at a very low level even if the data transmission rate is rising.
Technical Features of the LMH7322 Dual Comparator
The LMH7322 is a high-speed, dual comparator that also operates from a
wide input supply voltage range of 2.7V to 12V. The device features an
input common-mode range that extends 200 mV below the negative rail, and
its adjustable hysteresis adds flexibility and minimizes state changes due
to spurious noise. The LMH7322 provides fast rise and fall times of 160 ps,
and its RSPECL outputs and latch inputs reduce EMI, while providing
high-speed operation over a wide temperature range.
About National's Amplifier Portfolio
Specializing in high-performance amplifiers and comparators, National
Semiconductor offers a complete portfolio of op amps addressing the high-
speed, precision, low-voltage and low-power markets with products ranging
from building-block ICs to application-specific standard products (ASSPs).
The company has a long history of setting industry standards in amplifiers
and continues this trend with product releases on National's advanced VIP10
bipolar and VIP50 BiCMOS processes. National also leads the industry in
packaging technology with its revolutionary Silicon Dust(TM) and micro SMD
packaging technologies. For more information on National's amplifier
products, visit amplifiers.national.com.
Pricing and Availability
The LMH7220, available now in a 6-pin TSOT package, is priced at $2.15.
The LMH7322, available now in a 24-pin LLP(R) package, is priced at $4.31.
Both prices are in 1,000-unit quantities. For more information, easy-to-order
samples and evaluation boards, visit
http://www.national.com/pf/LM/LMH7220.html and
http://www.national.com/pf/LM/LMH7322.html . A large selection of amplifiers
is supported by National's Amplifiers Made Simple(SM) WEBENCH(R) online design
tool. To explore these solutions, visit http://webench.national.com. To learn
more about designing with amplifiers, visit our library of online seminars at
http://www.national.com/onlineseminar/#amps .
About National Semiconductor
National Semiconductor, the industry's premier analog company, creates
high-value analog devices and subsystems. National's leading-edge products
include power management circuits, display drivers, audio and operational
amplifiers, interface products and data conversion solutions. National's
key analog markets include wireless handsets, displays and a variety of
broad electronics markets, including medical, automotive, industrial, and
test and measurement applications. Headquartered in Santa Clara, Calif.,
National reported sales of $2.16 billion for fiscal 2006, which ended May
28, 2006. Additional company and product information is available at
http://www.national.com.
NOTE: LLP and WEBENCH are registered trademarks and Amplifiers Made
Simple and Silicon Dust are trademarks of National Semiconductor
Corporation.
Media Contact Reader Information
Mark Alden Design Support Group
National Semiconductor (800) 272-9959
(408) 721-6929 http://www.national.com
mark.alden@nsc.com
SOURCE National Semiconductor Corporation
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Related links:
http://www.national.com/
CONTACT:
media, Mark Alden of National Semiconductor,
+1-408-721-6929, mark.alden@nsc.com
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