ANALOG DEVICES AD1585 Service Manual
2.5 V to 5.0 V Micropower, Precision
www.BDTIC.com/ADI
FEATURES
Ser ies r efe ren ce ( 2.5 V, 3 V, 4. 096 V, 5 V)
Low quiescent current: 70 μA maximum
Current output capability: ±5 mA
Wide supply range: 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
IN
= V
+ 200 mV to 12 V
OUT
Series Mode Voltage References
AD1582/AD1583/AD1584/AD1585
PIN CONFIGURATION
AD1582/
1
V
OUT
AD1583/
AD1584/
AD1585
TOP VIEW
2
GND
(Not t o Scal e)
Figure 1. 3-Lead SOT-23-3 (RT Suffix)
900
800
700
600
500
(µA)
400
SUPPLY
I
300
200
100
0
2.7 5
Figure 2. Supply Current (μA) vs. Supply Voltage (V)
SHUNT REFERENCE
AD1582 SERIES REFERENCE
V
SUPPLY
3
V
IN
0701-001
1
(V)
1
3.076kΩ SOURCE RESISTOR.
00701-002
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.
Rev. H
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.
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
B 0.08% 0.10% 0.10% 50
A 0.80% 1.00% 0.98% 100
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©1997–2007 Analog Devices, Inc. All rights reserved.
AD1582 AD1583/AD1585 AD1584
Initial Accuracy Temperature
Coefficient
(ppm°C)
AD1582/AD1583/AD1584/AD1585
www.BDTIC.com/ADI
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
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
REVISION HISTORY
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
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. H | Page 2 of 16
AD1582/AD1583/AD1584/AD1585
www.BDTIC.com/ADI
SPECIFICATIONS
AD1582 SPECIFICATIONS
TA = T
Table 2.
AD1582A AD1582B
Parameter Min Typ Max Min Typ Max Unit
OUTPUT VOLTAGE (@ 25°C)
INITIAL ACCURACY ERROR (@ 25°C)
−0.80 +0.80 −0.08 +0.08 %
OUTPUT VOLTAGE TEMPERATURE DRIFT 100 50 ppm/°C
TEMPERATURE COEFFICIENT (TCVO)
MINIMUM SUPPLY HEADROOM (VIN – V
LOAD REGULATION
LINE REGULATION
RIPPLE REJECTION (∆V
QUIESCENT CURRENT 70 70 µA
SHORT-CIRCUIT CURRENT TO GROUND 15 15 mA
NOISE VOLTAGE (@ 25°C)
TURN-ON SETTLING TIME TO 0.1%
LONG-TERM STABILITY
OUTPUT VOLTAGE HYSTERESIS 115 115 ppm
TEMPERATURE RANGE
to T
MIN
VO 2.480 2.500 2.520 2.498 2.500 2.502 V
V
−20 +20 −2 +2 mV
OERR
−40°C < TA < +125°C 40 100 18 50 ppm/°C
0°C < TA < 70°C 35 15 ppm/°C
0 mA < I
0 mA < I
−5 mA < I
−5 mA < I
−0.1 mA < I
−0.1 mA < I
V
+ 200 mV < VIN < 12 V
OUT
I
= 0 mA 25 25 µV/V
OUT
VIN = 5 V ± 100 mV (f = 120 Hz) 80 80 dB
0.1 Hz to 10 Hz 70 70 µV p-p
10 Hz to 10 kHz 50 50 µV rms
CL = 0.2 µF 100 100 µs
1000 Hours @ 25°C 100 100 ppm/1000 hr
Specified Performance (A, B, C) −40 +125 −40 +125 °C
Operating Performance (A, B, C) −55 +125 −55 +125 °C
, VIN = 5 V, unless otherwise noted.
MAX
) 200 200 mV
OUT
< 5 mA (−40°C to +85°C) 0.2 0.2 mV/mA
OUT
< 5 mA (−40°C to +125°C) 0.4 0.4 mV/mA
OUT
< 0 mA (−40°C to +85°C) 0.25 0.25 mV/mA
OUT
< 0 mA (−40°C to +125°C) 0.45 0.45 mV/mA
OUT
< +0.1 mA (−40°C to +85°C) 2.7 2.7 mV/mA
OUT
< +0.1 mA (−40°C to +125°C) 3.5 3.5 mV/mA
OUT
/∆VIN)
OUT
Rev. H | Page 3 of 16
AD1582/AD1583/AD1584/AD1585
www.BDTIC.com/ADI
AD1583 SPECIFICATIONS
TA = T
Table 3.
AD1583A AD1583B
Parameter Min Typ Max Min Typ Max Unit
OUTPUT VOLTAGE (@ 25°C)
INITIAL ACCURACY ERROR (@ 25°C)
−1.0 +1.0 −0.1 +0.1 %
OUTPUT VOLTAGE TEMPERATURE DRIFT 100 50 ppm/°C
TEMPERATURE COEFFICIENT (TCVO)
MINIMUM SUPPLY HEADROOM (VIN – V
LOAD REGULATION
LINE REGULATION
RIPPLE REJECTION (∆V
QUIESCENT CURRENT 70 70 µA
SHORT-CIRCUIT CURRENT TO GROUND 15 15 mA
NOISE VOLTAGE (@ 25°C)
TURN-ON SETTLING TIME TO 0.1%
LONG-TERM STABILITY
OUTPUT VOLTAGE HYSTERESIS 115 115 ppm
TEMPERATURE RANGE
to T
MIN
VO 2.970 3.000 3.030 2.997 3.000 3.003 V
V
−30 +30 −3 +3 mV
OERR
–40°C < TA < +125°C 40 100 18 50 ppm/°C
0°C < TA < 70°C 35 15 ppm/°C
0 mA < I
0 mA < I
–5 mA < I
–5 mA < I
–0.1 mA < I
–0.1 mA < I
V
+ 200 mV < VIN < 12 V
OUT
I
= 0 mA 25 25 µV/V
OUT
VIN = 5 V ± 100 mV (f = 120 Hz) 80 80 dB
0.1 Hz to 10 Hz 85 85 µV p-p
10 Hz to 10 kHz 60 60 µV rms
CL = 0.2 µF 120 120 µs
1000 Hours @ 25°C 100 100 ppm/1000 hr
Specified Performance (A, B, C) −40 +125 −40 +125 °C
Operating Performance (A, B, C) −55 +125 −55 +125 °C
, VIN = 5 V, unless otherwise noted.
MAX
) 200 200 mV
OUT
< 5 mA (–40°C to +85°C) 0.25 0.25 mV/mA
OUT
< 5 mA (–40°C to +125°C) 0.45 0.45 mV/mA
OUT
< 0 mA (–40°C to +85°C) 0.40 0.40 mV/mA
OUT
< 0 mA (–40°C to +125°C) 0.6 0.6 mV/mA
OUT
< +0.1 mA (–40°C to +85°C) 2.9 2.9 mV/mA
OUT
< +0.1 mA (–40°C to +125°C) 3.7 3.7 mV/mA
OUT
/∆VIN)
OUT
Rev. H | Page 4 of 16
AD1582/AD1583/AD1584/AD1585
www.BDTIC.com/ADI
AD1584 SPECIFICATIONS
TA = T
Table 4.
AD1584A AD1584B
Parameter Min Typ Max Min Typ Max Unit
OUTPUT VOLTAGE (@ 25°C)
INITIAL ACCURACY ERROR (@ 25°C)
−0.98 +0.98 −0.1 +0.1 %
OUTPUT VOLTAGE TEMPERATURE DRIFT 100 50 ppm/°C
TEMPERATURE COEFFICIENT (TCVO)
MINIMUM SUPPLY HEADROOM (VIN – V
LOAD REGULATION
LINE REGULATION
RIPPLE REJECTION (∆V
QUIESCENT CURRENT 70 70 µA
SHORT-CIRCUIT CURRENT TO GROUND 15 15 mA
NOISE VOLTAGE (@ 25°C)
TURN-ON SETTLING TIME TO 0.1%
LONG-TERM STABILITY
OUTPUT VOLTAGE HYSTERESIS 115 115 ppm
TEMPERATURE RANGE
to T
MIN
VO 4.056 4.096 4.136 4.092 4.096 4.100 V
V
−40 +40 −4 +4 mV
OERR
−40°C < TA < +125°C 40 100 18 50 ppm/°C
0°C < TA < 70°C 35 15 ppm/°C
0 mA < I
0 mA < I
−5 mA < I
−5 mA < I
−0.1 mA < I
−0.1 mA < I
V
+ 200 mV < VIN 12 V
OUT
I
= 0 mA 25 25 µV/V
OUT
VIN = 5 V ± 100 mV (f = 120 Hz) 80 80 dB
0.1 Hz to 10 Hz 110 110 µV p-p
10 Hz to 10 kHz 90 90 µV rms
CL = 0.2 µF 140 140 µs
1000 Hours @ 25°C 100 100 ppm/1000 hr
Specified Performance (A, B, C) −40 +125 −40 +125 °C
Operating Performance (A, B, C) −55 −125 −55 +125 °C
, VIN = 5 V, unless otherwise noted.
MAX
) 200 200 mV
OUT
< 5 mA (−40°C to +85°C) 0.32 0.32 mV/mA
OUT
< 5 mA (−40°C to +125°C) 0.52 0.52 mV/mA
OUT
< 0 mA (−40°C to +85°C) 0.40 0.40 mV/mA
OUT
< 0 mA (−40°C to +125°C) 0.6 0.6 mV/mA
OUT
< +0.1 mA (−40°C to +85°C) 3.2 3.2 mV/mA
OUT
< +0.1 mA (−40°C to +125°C) 4.1 4.1 mV/mA
OUT
/∆VIN)
OUT
Rev. H | Page 5 of 16
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