Seoul, Jun 22 2006 (Korea Newswire)--
Analog Devices, Inc. (NYSE: ADI), a global leader in high
performance semiconductors for signal-processing
applications and the market leader in amplifiers, today
introduced a precision operational amplifier (op amp) that
is optimized to meet the power, voltage, accuracy and price
requirements of portable battery-powered applications. The
AD8500 consumes 30 percent less power than competing
solutions and operates at a low 1.8 volts (V) without
sacrificing precision performance. This combination of low
power, low voltage, and high precision translates into
longer continuous battery-life for portable applications
that require precision sensing to ensure accuracy, including
smoke detectors, glucose monitors and remote sensors. In
addition, the op amp is available in a tiny standard surface
mount package to meet the size requirements of
space-constrained battery-powered applications and is priced
to meet the needs of high-volume markets.
“This new op amp further extends ADI’s broad portfolio of
precision amplifiers that operate at low voltage, consume
minimal power and are priced for high-volume applications,”
said Steve Sockolov, product line director, Precision Signal
Processing Group. “The AD8500 utilizes advanced design
techniques to offer very low supply current and excellent
offset performance. This combination enables accurate
sensing in battery-powered applications that must operate
for a long period of time without replacement or recharge.”
Low Power, Low Voltage
The AD8500 is a precision CMOS op amp that features a
1-microamp maximum supply current. The device operates from
a single supply voltage of +1.8 V to +5.5 V or a dual supply
voltage of ±0.9 V to ±2.75 V. The low voltage allows use
with two cell batteries over the full discharge profile,
thus extending battery lifetime.
High Precision
The AD8500 offers 1-millivolt max offset performance and a
low 1-picoamp input bias current. The ability to swing
rail-to-rail at both the input and output helps maximize the
dynamic range and signal-to-noise ratio in systems that
operate at very low voltages. The low offset voltage allows
the AD8500 to be used in systems with high gain without
having excessively large output offset errors and provides
high accuracy without the need for system calibration.
Battery-Powered Applications
With its low power consumption, low input bias current and
rail-to-rail input and output, the AD8500 is well-suited for
a variety of battery-powered consumer, medical and safety
applications, including electrocardiograms (ECGs), pulse
monitors, glucose meters, smoke and fire detectors, security
systems, gas detectors, backup battery sensors, insulin
pumps and ultraviolet radiation (UV) detectors in cellular
handsets. To minimize power consumption and maximize signal
chain performance, the AD8500 can be used with ADI’s
low-power precision analog-to-digital converters, such as
the AD7788.
Availability and Pricing
The AD8500 precision op amp is available in production
quantities now. Housed in a 5-lead SC 70 package, it is
priced at $0.70 per unit in 1,000 piece quantities. The
device is fully specified over the industrial temperature
range of -40 degrees C to +85 degrees C.
For more information, please visit www.analog.com/AD8500.
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