High Precision Shunt Mode Voltage References ADR525/ADR530/ADR550 FEATURES PIN CONFIGURATION Ultracompact SC70 and SOT-23-3 packages 1 ADR525/ V+ ADR530/ Temperature coefficient: 40 ppm/C (maximum) ADR550 3 TRIM 2 the temperature coefficient improvement over the LM4040 V 2 Pin compatible with the LM4040/LM4050 Initial accuracy: 0.2% Figure 1. 3-Lead SC70 (KS) and 3-Lead SOT-23-3 (RT) Low output voltage noise: 18 V p-p 2.5 V output No external capacitor required GENERAL DESCRIPTION Operating current range: 50 A to 15 mA Industrial temperature range: 40C to +85C Designed for space-critical applications, the ADR525/ADR530/ ADR550 are high precision shunt voltage references, housed in APPLICATIONS ultrasmall SC70 and SOT-23-3 packages. These references feature Portable, battery-powered equipment low temperature drift of 40 ppm/C, an initial accuracy of better Automotive than 0.2%, and ultralow output noise of 18 V p-p. Power supplies Available in output voltages of 2.5 V, 3.0 V, and 5.0 V, the Data acquisition systems advanced design of the ADR525/ADR530/ADR550 eliminates Instrumentation and process control the need for compensation by an external capacitor, yet the Energy measurement references are stable with any capacitive load. The minimum Table 1. Selection Guide operating current increases from a mere 50 A to a maximum of 15 mA. This low operating current and ease of use make Temperature Initial Coefficient these references ideally suited for handheld, battery-powered Part Voltage (V) Accuracy (%) (ppm/C) applications. ADR525A 2.5 0.4 70 A trim terminal is available on the ADR525/ADR530/ADR550 ADR525B 2.5 0.2 40 to allow adjustment of the output voltage over a 0.5% range, ADR530A 3.0 0.4 70 without affecting the temperature coefficient of the device. This ADR530B 3.0 0.2 40 feature provides users with the flexibility to trim out small ADR550A 5.0 0.4 70 system errors. ADR550B 5.0 0.2 40 For better initial accuracy and wider temperature range, see the ADR5040/ADR5041/ADR5043/ADR5044/ADR5045 family at www.analog.com. Rev. F 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 20032010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 04501-001ADR525/ADR530/ADR550 TABLE OF CONTENTS Features .............................................................................................. 1 Thermal Resistance.......................................................................5 Applications....................................................................................... 1 ESD Caution...................................................................................5 Pin Configuration............................................................................. 1 Parameter Definitions.......................................................................6 General Description ......................................................................... 1 Temperature Coefficient...............................................................6 Revision History ............................................................................... 2 Thermal Hysteresis .......................................................................6 Specifications..................................................................................... 3 Typical Performance Characteristics ..............................................7 ADR525 Electrical Characteristics............................................. 3 Theory of Operation .........................................................................9 ADR530 Electrical Characteristics............................................. 3 Applications ...................................................................................9 ADR550 Electrical Characteristics............................................. 4 Outline Dimensions....................................................................... 11 Absolute Maximum Ratings............................................................ 5 Ordering Guide .......................................................................... 12 REVISION HISTORY 8/10Rev. E to Rev. F 12/07Rev. C to Rev. D Deleted ADR520 and ADR540 .........................................Universal Changes to Figure 3 and Figure 5....................................................8 Changes to Table 1, Figure 1, and General Description Changes to Figure 15, Figure 16, and Figure 17 Captions ........ 10 Section................................................................................................ 1 Changes to Figure 23...................................................................... 12 Deleted ADR520 Electrical Characteristics Section .................... 3 Updated Outline Dimensions....................................................... 13 Deleted Table 2 Renumbered Sequentially .................................. 3 8/07Rev. B to Rev. C Deleted ADR540 Electrical Characteristics Section and Changes to Figure 21...................................................................... 11 Table 5 ................................................................................................ 4 Updated Outline Dimensions....................................................... 13 Changes to Figure 2 and Figure 7................................................... 7 Changes to Ordering Guide .......................................................... 14 Deleted Figure 3 Renumbered Sequentially................................. 8 1/06Rev. A to Rev. B Changes to Figure 9 and Figure 10................................................. 8 Updated Formatting...........................................................Universal Deleted Figure 8, Figure 9, and Figure 12 ..................................... 9 Changes to Features Section ............................................................1 Changes to Figure 20...................................................................... 10 Changes to General Description Section .......................................1 Updated Outline Dimensions....................................................... 13 6/08Rev. D to Rev. E Changes to Ordering Guide .......................................................... 14 Changes to Table 3............................................................................ 3 12/03Data Sheet Changed from Rev. 0 to Rev. A Changes to Table 4 and Table 5....................................................... 4 Updated Outline Dimensions....................................................... 13 Changes to Table 6............................................................................ 5 Change to Ordering Guide............................................................ 14 Changes to Figure 4.......................................................................... 8 Changes to Applications Section .................................................. 11 11/03Revision 0: Initial Version Rev. F Page 2 of 12