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AD1582

Precision Series Mode Voltage References



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AD1582 pdf
Data Sheet
2.5 V to 5.0 V Micropower, Precision
Series Mode Voltage References
AD1582/AD1583/AD1584/AD1585
FEATURES
Series reference (2.5 V, 3 V, 4.096 V, 5 V)
Low quiescent current: 70 µA maximum
Current output capability: ±5 mA
Wide supply range: VIN = VOUT + 200 mV to 12 V
Wideband noise (10 Hz to 10 kHz): 50 µV rms
Specified temperature range: −40°C to +125°C
Compact, surface-mount SOT-23 package
APPLICATIONS
Portable, battery-powered equipment; for example,
notebook computers, cellular phones, pagers, PDAs, GPSs,
and DMMs
Computer workstations; suitable for use with a wide range
of video RAMDACs
Smart industrial transmitters
PCMCIA cards
Automotive
Hard disk drives
3 V/5 V, 8-bit/12-bit data converters
GENERAL DESCRIPTION
The AD1582/AD1583/AD1584/AD1585 are low cost, low power,
low dropout, precision band gap references. These designs are
available as 3-terminal (series) devices and are packaged in the
compact SOT-23, 3-lead surface-mount package. The versatility
of these references makes them ideal for use in battery-powered
3 V or 5 V systems where there can be wide variations in supply
voltage and a need to minimize power dissipation.
The superior accuracy and temperature stability of the AD1582/
AD1583/AD1584/AD1585 result from the precise matching and
thermal tracking of on-chip components. Patented temperature
drift curvature correction design techniques minimize the
nonlinearities in the voltage output temperature characteristic.
PIN CONFIGURATION
VOUT 1
AD1582/
AD1583/
AD1584/
AD1585
3 VIN
GND 2 TOP VIEW
(Not to Scale)
Figure 1. 3-Lead SOT-23-3 (RT Suffix)
900
800
700
600
SHUNT REFERENCE1
500
400
300
200
100 AD1582 SERIES REFERENCE
0
2.7
VSUPPLY (V)
5
13.076kSOURCE RESISTOR.
Figure 2. Supply Current (μA) vs. Supply Voltage (V)
The AD1582/AD1583/AD1584/AD1585 series mode devices
source or sink up to 5 mA of load current and operate efficiently
with only 200 mV of required headroom supply. These parts
draw a maximum 70 μA of quiescent current with only a
1.0 μA/V variation with supply voltage. The advantage of
these designs over conventional shunt devices is extraordinary.
Valuable supply current is no longer wasted through an input
series resistor, and maximum power efficiency is achieved at
all input voltage levels.
The AD1582/AD1583/AD1584/AD1585 are available in two
grades, A and B, and are provided in a tiny footprint, the SOT-
23. All grades are specified over the industrial temperature
range of −40°C to +125°C.
Table 1. AD158x Products, Three Electrical Grades
Electrical
Grade
AD1582
Initial Accuracy
AD1583/AD1585
AD1584
Temperature
Coefficient
(ppm°C)
B 0.08% 0.10%
0.10% 50
A 0.80% 1.00%
0.98% 100
Rev. J
Document Feedback
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©1997–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com



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AD1582 pdf
AD1582/AD1583/AD1584/AD1585
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Pin Configuration............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
AD1582 Specifications................................................................. 3
AD1583 Specifications................................................................. 4
AD1584 Specifications................................................................. 5
AD1585 Specifications................................................................. 6
Absolute Maximum Ratings............................................................ 7
ESD Caution.................................................................................. 7
Terminology ...................................................................................... 8
Typical Performance Characteristics ............................................. 9
REVISION HISTORY
2/13—Rev. I to Rev. J
Change to Table 6 ............................................................................. 7
Changes to Ordering Guide .......................................................... 16
5/10—Rev. H to Rev. I
Changes to Figure 10...................................................................... 11
Updated Outline Dimensions ....................................................... 16
Changes to Ordering Guide .......................................................... 16
11/07—Rev. G to Rev. H
Deleted C Grade .................................................................Universal
Changes to VOERR Parameter ....................................................... 3
Changes to Ordering Guide .......................................................... 16
6/06—Rev. F to Rev. G
Changes to Features.......................................................................... 1
Changes to General Description .................................................... 1
2/06—Rev. E to Rev. F
Updated Format..................................................................Universal
Changes to Features.......................................................................... 1
Changes to Table 6............................................................................ 7
Changes to Ordering Guide .......................................................... 16
6/05—Rev. D to Rev. E
Changes to Ordering Guide ........................................................... 7
Moved Package Branding Section .................................................. 7
6/04—Rev. C to Rev. D
Changes to Ordering Guide ............................................................ 6
Updated Outline Dimensions ....................................................... 13
Data Sheet
Theory of Operation ...................................................................... 10
Applications Information .............................................................. 11
Temperature Performance......................................................... 11
Voltage Output Nonlinearity vs. Temperature ....................... 11
Output Voltage Hysteresis......................................................... 12
Supply Current vs. Temperature............................................... 12
Supply Voltage ............................................................................ 12
AC Performance ......................................................................... 12
Noise Performance and Reduction .......................................... 13
Turn-On Time ............................................................................ 13
Dynamic Performance............................................................... 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 16
Package Branding Information ................................................ 16
12/02—Rev. B to Rev. C
Changes to Features ..........................................................................1
Changes to General Description .....................................................1
Changes to Specifications.................................................................2
Changes to Absolute Maximum Ratings........................................6
Replaced TPC 3 .................................................................................8
Changes to Temperature Performance Section .............................9
Replaced Figure 4 ..............................................................................9
Changes to Output Voltage Hysteresis Section .......................... 10
Updated SOT-23 Package.............................................................. 13
3/97—Revision 0: Initial Version
Rev. J | Page 2 of 16



Part Number AD1582
Description Precision Series Mode Voltage References
Maker Analog Devices - Analog Devices
Total Page 16 Pages
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