AD580 Analog Devices, AD580 Datasheet

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AD580

Manufacturer Part Number
AD580
Description
High Precision 2.5 V IC Reference
Manufacturer
Analog Devices
Datasheet

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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
GENERAL DESCRIPTION
The AD580
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.
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.
1
is a 3-terminal, low cost, temperature-
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
6.
1
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
Protected by U.S. Patent Numbers 3,887,863; RE30,586.
Laser-trimming of the thin film resistors minimizes the
AD580 output error. For example, the AD580L output
tolerance is ±10 mV.
The three-terminal voltage in/voltage out operation of the
AD580 provides regulated output voltage without any
external components.
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.
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.
The low quiescent current drain of the AD580 makes it
ideal for CMOS and other low power applications.
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.
FUNCTIONAL BLOCK DIAGRAM
© 2004 Analog Devices, Inc. All rights reserved.
BOTTOM
VIEW
2.5 V IC Reference
Figure 1.
+E
–E
High Precision,
E
OUT
www.analog.com
AD580

Related parts for AD580

AD580 Summary of contents

Page 1

... 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 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/° ...

Page 2

... Theory of Operation ........................................................................ 5 Voltage Variation versus Temperature ....................................... 5 Noise Performance ....................................................................... 6 REVISION HISTORY 8/04—Changed from Rev Rev. B Updated Format................................................................ Universal The AD580 as a Current Limiter.................................................6 The AD580 as a Low Power, Low Voltage, Precision Reference for Data Converters.......................................................................7 Outline Dimensions ..........................................................................8 Ordering Guide .............................................................................8 Rev Page ...

Page 3

... Min Typ Max Min Typ ±10 4 1.0 1.0 1 250 250 +70 0 –55 +125 –55 –65 +175 –65 AD580LH AD580MH AD580T AD580U Typ Max Min Typ Max ±10 ± 1.0 1.0 1.5 1 250 250 25 25 +125 –55 +125 +150 – ...

Page 4

... AD580 CHIP DIMENSIONS AND PAD LAYOUT Dimensions shown in inches and (millimeters). 0.075 (1.90 OUT *BOTH E PADS MUST BE CONNECTED TO THE OUTPUT. OUT The AD580 is also available in chip form. Consult the factory for specifications and applications information. Rev Page 0.046 (1.16) –E Figure 2. ...

Page 5

... 2 provide a usable reference-voltage output. Figure 5 shows the schematic diagram of the AD580. The AD580 operates as a 3-terminal reference, meaning that no additional components are required for biasing or current setting. The connection diagram, Figure 6, is quite simple. 1.5 CONSTANT SUM = 1 ...

Page 6

... V The AD580 typically exhibits a variation of 1.5 mV over the power supply range Figure plot of AD580 line rejection versus frequency. NOISE PERFORMANCE Figure 9 represents the peak-to-peak noise of the AD580 from point high end shown on the horizontal axis. Peak-to-peak noise from MHz is approximately 600 µ ...

Page 7

... THE AD580 AS A LOW POWER, LOW VOLTAGE, PRECISION REFERENCE FOR DATA CONVERTERS The AD580 has a number of features that make it ideally suited for use with A/D and D/A data converters used in complex microprocessor-based systems. The calibrated 2.500 V output minimizes user trim requirements and allows operation from a single, low voltage supply ...

Page 8

... AD580JH ±75 mV AD580KH ±25 mV AD580LH ±10 mV AD580LMH ±10 mV AD580SH ±25 mV AD580SH/883B ±25 mV AD580TH ±10 mV AD580UH ±10 mV AD580UH/883B ±10 mV AD580TCHIPS ±10 mV © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 0.500 (12.70) MIN 0.150 (3.81) ...

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