ADR525BKS-REEL7 Analog Devices Inc, ADR525BKS-REEL7 Datasheet

IC REF VOLT SHUNT 2.5V SC-70-3

ADR525BKS-REEL7

Manufacturer Part Number
ADR525BKS-REEL7
Description
IC REF VOLT SHUNT 2.5V SC-70-3
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADR525BKS-REEL7

Rohs Status
RoHS non-compliant
Reference Type
Shunt
Voltage - Output
2.5V
Tolerance
±0.2%
Temperature Coefficient
40ppm/°C
Number Of Channels
1
Current - Cathode
50µA
Current - Output
15mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SC-70-3, SOT-323-3
Voltage - Input
-
Current - Quiescent
-
FEATURES
Ultracompact SC70 and SOT-23-3 packages
Temperature coefficient: 40 ppm/°C (maximum)
2× the temperature coefficient improvement over the
Pin compatible with the LM4040/LM4050
Initial accuracy: ±0.2%
Low output voltage noise: 14 μV p-p @ 2.5 V output
No external capacitor required
Operating current range: 50 μA to 15 mA
Industrial temperature range: −40°C to +85°C
APPLICATIONS
Portable, battery-powered equipment
Automotive
Power supplies
Data acquisition systems
Instrumentation and process control
Energy measurement
Table 1. Selection Guide
Part
ADR520A
ADR520B
ADR525A
ADR525B
ADR530A
ADR530B
ADR540A
ADR540B
ADR550A
ADR550B
Rev. E
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.
LM4040
Voltage (V)
2.048
2.048
2.5
2.5
3.0
3.0
4.096
4.096
5.0
5.0
±0.4
Initial
Accuracy (%)
±0.2
±0.4
±0.2
±0.4
±0.2
±0.4
±0.2
±0.4
±0.2
ADR520/ADR525/ADR530/ADR540/ADR550
Temperature
Coefficient
(ppm/°C)
70
40
70
40
70
40
70
40
70
40
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
GENERAL DESCRIPTION
Designed for space-critical applications, the ADR520/ADR525/
ADR530/ADR540/ADR550 are high precision shunt voltage
references, housed in ultrasmall SC70 and SOT-23-3 packages.
These references feature low temperature drift of 40 ppm/°C,
an initial accuracy of better than ±0.2%, and ultralow output
noise of 14 μV p-p.
Available in output voltages of 2.048 V, 2.5 V, 3.0 V, 4.096 V,
and 5.0 V, the advanced design of the ADR520/ADR525/
ADR530/ADR540/ADR550 eliminates the need for compensa-
tion by an external capacitor, yet the references are stable with
any capacitive load. The minimum operating current increases
from a mere 50 μA to a maximum of 15 mA. This low operating
current and ease of use make these references ideally suited for
handheld, battery-powered applications.
A trim terminal is available on the ADR520/ADR525/ADR530/
ADR540/ADR550 to allow adjustment of the output voltage
over a ±0.5% range, without affecting the temperature coefficient
of the device. This feature provides users with the flexibility to
trim out any system errors.
High Precision Shunt Mode
Figure 1. 3-Lead SC70 (KS) and 3-Lead SOT-23-3 (RT)
©2003–2008 Analog Devices, Inc. All rights reserved.
PIN CONFIGURATION
V+
V–
Voltage References
1
2
ADR520/
ADR525/
ADR530/
ADR540/
ADR550
3
TRIM
www.analog.com

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ADR525BKS-REEL7 Summary of contents

Page 1

FEATURES Ultracompact SC70 and SOT-23-3 packages Temperature coefficient: 40 ppm/°C (maximum) 2× the temperature coefficient improvement over the LM4040 Pin compatible with the LM4040/LM4050 Initial accuracy: ±0.2% Low output voltage noise: 14 μV p-p @ 2.5 V output No external ...

Page 2

ADR520/ADR525/ADR530/ADR540/ADR550 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Pin Configuration ............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 ADR520 Electrical Characteristics ............................................. 3 ADR525 Electrical Characteristics ............................................. 3 ADR530 Electrical Characteristics ............................................. 4 ...

Page 3

SPECIFICATIONS ADR520 ELECTRICAL CHARACTERISTICS μ mA 25°C, unless otherwise noted Table 2. Parameter Output Voltage Grade A Grade B Initial Accuracy Grade A Grade B Temperature Coefficient 1 Grade A Grade ...

Page 4

ADR520/ADR525/ADR530/ADR540/ADR550 ADR530 ELECTRICAL CHARACTERISTICS μ mA 25°C, unless otherwise noted Table 4. Parameter Output Voltage Grade A Grade B Initial Accuracy Grade A Grade B 1 Temperature Coefficient Grade A Grade ...

Page 5

ADR550 ELECTRICAL CHARACTERISTICS μ mA 25°C, unless otherwise noted Table 6. Parameter Output Voltage Grade A Grade B Initial Accuracy Grade A Grade B 1 Temperature Coefficient Grade A Grade B ...

Page 6

ADR520/ADR525/ADR530/ADR540/ADR550 ABSOLUTE MAXIMUM RATINGS Ratings apply at 25°C, unless otherwise noted. Table 7. Parameter Reverse Current Forward Current Storage Temperature Range Industrial Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 sec) Stresses above those listed under Absolute Maximum Ratings ...

Page 7

PARAMETER DEFINITIONS TEMPERATURE COEFFICIENT Temperature coefficient is defined as the change in output voltage with respect to operating temperature changes and is normalized by the output voltage at 25°C. This parameter is expressed in ppm/°C and is determined by the ...

Page 8

ADR520/ADR525/ADR530/ADR540/ADR550 TYPICAL PERFORMANCE CHARACTERISTICS 5.5 ADR550 5.0 4.5 ADR540 4.0 3.5 ADR530 3.0 ADR525 2.5 ADR520 2.0 1 25°C A 1.0 0 MINIMUM OPERATING CURRENT (µA) Figure 2. Reverse Characteristics and Minimum Operating Current ...

Page 9

V = 2V/DIV 1V/DIV OUT 4µs/DIV I = 10mA IN TIME (µs) Figure 8. ADR520 Turn-On Response V = 2V/DIV 1V/DIV OUT 10µs/DIV I = 100µA IN TIME (µs) Figure 9. ADR520 Turn-On Response ...

Page 10

ADR520/ADR525/ADR530/ADR540/ADR550 V GEN = 2V/DIV I = 10mA IN V OUT 10µs/DIV TIME (µs) Figure 14. ADR550 Load Transient Response 2.5030 2.5025 2.5020 2.5015 2.5010 2.5005 2.5000 2.4995 2.4990 2.4985 2.4980 –40 – TEMPERATURE (°C) Figure 15. Data ...

Page 11

THEORY OF OPERATION The ADR520/ADR525/ADR530/ADR540/ADR550 use the band gap concept to produce a stable, low temperature coefficient voltage reference suitable for high accuracy data acquisition components and systems. The devices use the physical nature of a silicon transistor base-emitter voltage ...

Page 12

ADR520/ADR525/ADR530/ADR540/ADR550 Stacking the ADR520/ADR525/ADR530/ADR540/ADR550 for User-Definable Outputs Multiple ADR520/ADR525/ADR530/ADR540/ADR550 parts can be stacked to allow the user to obtain a desired higher voltage. Figure 22 shows three ADR550s configured to give 15 V. The bias resistor chosen ...

Page 13

OUTLINE DIMENSIONS 1.35 1.25 1.15 1.00 0.80 0.10 MAX 1.40 1.20 0.100 0.013 SEATING PLANE ADR520/ADR525/ADR530/ADR540/ADR550 2.20 2.00 1.80 2.40 3 2.10 1. PIN 1 0.65 BSC 0.40 1.10 0.10 0.80 0.26 0.40 0.10 SEATING 0.25 PLANE 0.10 ...

Page 14

... ADR520BKS-REEL7 2.048 1 ADR520BKSZ-REEL7 2.048 ADR520BRT-R2 2.048 ADR520BRT-REEL7 2.048 1 ADR520BRTZ-REEL7 2.048 ADR525ART-R2 2.5 ADR525ART-REEL7 2.5 1 ADR525ARTZ-R2 2.5 1 ADR525ARTZ-REEL7 2.5 ADR525BKS-R2 2.5 ADR525BKS-REEL7 2.5 ADR525BKSZ-REEL7 1 2.5 ADR525BRT-R2 2.5 ADR525BRT-REEL7 2.5 1 ADR525BRTZ-REEL7 2.5 ADR530ART-R2 3.0 ADR530ART-REEL7 3.0 1 ADR530ARTZ-REEL7 3.0 ADR530BKS-R2 3.0 ADR530BKS-REEL7 3.0 1 ADR530BKSZ-REEL7 3 ...

Page 15

NOTES ADR520/ADR525/ADR530/ADR540/ADR550 Rev Page ...

Page 16

ADR520/ADR525/ADR530/ADR540/ADR550 NOTES ©2003–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04501-0-6/08(E) Rev Page ...

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