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AD580 Datasheet(PDF) 1 Page - Analog Devices

Part # AD580
Description  High Precision,2.5 V IC Reference
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD580 Datasheet(HTML) 1 Page - Analog Devices

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High Precision,
2.5 V IC Reference
AD580
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
© 2004 Analog Devices, Inc. All rights reserved.
FEATURES
Laser-trimmed to high accuracy: 2.500 V ±0.4%
3-terminal device: voltage in/voltage out
Excellent temperature stability: 10 ppm/°C (AD580M, U)
Excellent long-term stability: 250 μV (25 μV/month)
Low quiescent current: 1.5 mA maximum
Small, hermetic IC package: TO-52 can
MIL-STD-883 compliant versions available
FUNCTIONAL BLOCK DIAGRAM
+E
–E
EOUT
BOTTOM
VIEW
Figure 1.
GENERAL DESCRIPTION
The AD580 is a 3-terminal, low cost, temperature-compensated,
bandgap voltage reference, which provides a fixed 2.5 V output
for inputs between 4.5 V and 30 V. A unique combination of
advanced circuit design and laser-wafer trimmed thin film
resistors provide the AD580 with an initial tolerance of ±0.4%, a
temperature stability of better than 10 ppm/°C, and long-term
stability of better than 250 μV. In addition, the low quiescent
current drain of 1.5 mA maximum offers a clear advantage over
classical Zener techniques.
The AD580 is recommended as a stable reference for all 8-, 10-,
and 12-bit D/A converters that require an external reference. In
addition, the wide input range of the AD580 allows operation
with 5 volt logic supplies, making the AD580 ideal for digital
panel meter applications or whenever only a single logic power
supply is available.
The AD580J, K, L, and M are specified for operation over the
0°C to +70°C temperature range; the AD580S, T, and U are
specified for operation over the extended temperature range of
–55°C to +125°C.
PRODUCT HIGHLIGHTS
1.
Laser-trimming of the thin film resistors minimizes the
AD580 output error. For example, the AD580L output
tolerance is ±10 mV.
2.
The three-terminal voltage in/voltage out operation of the
AD580 provides regulated output voltage without any
external components.
3.
The AD580 provides a stable 2.5 V output voltage for input
voltages between 4.5 V and 30 V. The capability to provide
a stable output voltage using a 5 V input makes the AD580
an ideal choice for systems that contain a single logic
power supply.
4.
Thin film resistor technology and tightly controlled bipolar
processing provide the AD580 with temperature stabilities
to 10 ppm/°C and long-term stability better than 250 μV.
5.
The low quiescent current drain of the AD580 makes it
ideal for CMOS and other low power applications.
6.
The AD580 is available in versions compliant with MIL-
STD-883. Refer to the Analog Devices Military Products
Data Book or the current AD580/AD883B data sheet for
detailed specifications.


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