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ADR520/ADR525/ADR530/ADR540/ADR550 Rev. A 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. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2003 Analog Devices, Inc. All rights reserved.

FEATURES

Ultracompact SC70 and SOT-23 packages Temperature coefficient: 40 ppm/°C (max) 2× the tempco improvement over the LM4040 Pin compatible with 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 10 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 Figure 1. 3-Lead SC70 (KS) references, housed in ultrasmall SC70 and SOT-23 packages.

5.0 V , the ADR5xx’s advanced design eliminates the need for

suited for handheld, battery-powered applications. with the flexibility to trim out any system errors.

ADR520/ADR525/ADR530/ADR540/ADR550 Rev. A | Page 2 of 16 TABLE OF CONTENTS

REVISION HISTORY

11/03—Revision 0: Initial Version 12/03—Data Sheet Changed from REV . 0 to REV . A

Table 2. ADR520 Electrical Characteristics @ IIN = 50 µA to 10 mA, TA = 25°C, unless otherwise noted Table 3. ADR525 Electrical Characteristics @ IIN = 50 µA to 10 mA, TA = 25°C, unless otherwise noted

1 Guaranteed by design

Table 4. ADR530 Electrical Characteristics @ IIN = 50 µA to 10 mA, TA = 25°C, unless otherwise noted Table 5. ADR540 Electrical Characteristics @ IIN = 50 µA to 10 mA, TA = 25°C, unless otherwise noted

Table 6. ADR550 Electrical Characteristics @ IIN = 50 µA to 10 mA, TA = 25°C, unless otherwise noted

ADR520/ADR525/ADR530/ADR540/ADR550 Rev. A | Page 6 of 16 ABSOLUTE MAXIMUM RATINGS Ratings apply at 25°C, unless otherwise noted. Table 7. Parameter Rating Reverse Current 25 mA Forward Current 20 mA Storage Temperature Range –65°C to +150°C Industrial Temperature Range –40°C to +85°C Junction Temperature Range –65°C to +150°C Lead Temperature Range (Soldering, 60 sec) 300°C 3-Lead SC70 (KS) 376 °C/W 3-Lead SOT-23 (RT) 230 146 °C/W 1 θJA is specified for worst-case conditions, i.e., θJA is specified for devices soldered on circuit boards for surface-mount packages. Contact factory for latest information on release dates. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.

ADR520/ADR525/ADR530/ADR540/ADR550 Rev. A | Page 7 of 16 PARAMETER DEFINITIONS TEMPERATURE COEFFICIENT Temperature coefficient is defined as the change in output voltage with respect to operating temperature changes, and is normalized by an output voltage of 25°C. This parameter is expressed in ppm/°C, and is determined by the following equation: () () () () 61025 ×−×° −=⎥⎦ ° 12O 1O2O O TTCV TVTV C ppmTCV (1) where: VO(25°C) = VO at 25°C. VO(T1) = VO at Temperature 1. VO(T2) = VO at Temperature 2. THERMAL HYSTERESIS Thermal hysteresis is defined as the change in output voltage after the device is cycled through temperatures ranging from +25°C to –40°C, then to +85°C, and back to +25°C. The following equation expresses a typical value from a sample of parts put through such a cycle: ( ) [] () 1025 −°= −°= CV VCVppmV VCVV O TCOO HYSO TCOOHYSO (2) where: VO(25°C) = VO at 25°C. VO_TC = VO at 25°C after a temperature cycle from +25°C to –40°C, then to +85°C, and back to +25°C.

0.250.10 MAX

1.10 MAX

0.65 BSC

0.10 COPLANARITY

Figure 24. Surface-Mount Package [SC70]

1.90 BSC

0.95 BSC

Figure 25. Surface-Mount Package[SOT-23]

ADR520/ADR525/ADR530/ADR540/ADR550 Rev. A | Page 14 of 16 ORDERING GUIDE Model Output Voltage (V) Initial Accuracy (mV) Tempco Industrial (ppm/°C) Package

Description

Range (°C) ADR520ART-REEL7 2.048 8 70 SOT-23 RT RQA 3,000 –40 to +85 ADR520ART-R2 2.048 8 70 SOT-23 RT RQA 250 –40 to +85 ADR520BRT-REEL7 2.048 4 40 SOT-23 RT RQB 3,000 –40 to +85 ADR520BRT-R2 2.048 4 40 SOT-23 RT RQB 250 –40 to +85 ADR520BKS-REEL7 2.048 4 40 SC70 KS RQB 3,000 –40 to +85 ADR520BKS-R2 2.048 4 40 SC70 KS RQB 250 –40 to +85 ADR525ART-REEL7 2.500 10 70 SOT-23 RT RRA 3,000 –40 to +85 ADR525ART-R2 2.500 10 70 SOT-23 RT RRA 250 –40 to +85 ADR525BRT-REEL7 2.500 5 40 SOT-23 RT RRB 3,000 –40 to +85 ADR525BRT-R2 2.500 5 40 SOT-23 RT RRB 250 –40 to +85 ADR525BKS-REEL7 2.500 5 40 SC70 KS RRB 3,000 –40 to +85 ADR525BKS-R2 2.500 5 40 SC70 KS RRB 250 –40 to +85 ADR530ART-REEL7 3.0 12 70 SOT-23 RT RSA 3,000 –40 to +85 ADR530ART-R2 3.0 12 70 SOT-23 RT RSA 250 –40 to +85 ADR530BRT-REEL7 3.0 6 40 SOT-23 RT RSB 3,000 –40 to +85 ADR530BRT-R2 3.0 6 40 SOT-23 RT RSB 250 –40 to +85 ADR530BKS-REEL7 3.0 6 40 SC70 KS RSB 3,000 –40 to +85 ADR530BKS-R2 3.0 6 40 SC70 KS RSB 250 –40 to +85 ADR540ART-REEL7 4.096 16 70 SOT-23 RT RTA 3,000 –40 to +85 ADR540ART-R2 4.096 16 70 SOT-23 RT RTA 250 –40 to +85 ADR540BRT-REEL7 4.096 8 40 SOT-23 RT RTB 3,000 –40 to +85 ADR540BRT-R2 4.096 8 40 SOT-23 RT RTB 250 –40 to +85 ADR540BKS-REEL7 4.096 8 40 SC70 KS RTB 3,000 –40 to +85 ADR540BKS-R2 4.096 8 40 SC70 KS RTB 250 –40 to +85 ADR550ART-REEL7 5.0 20 70 SOT-23 RT RVA 3,000 –40 to +85 ADR550ART-R2 5.0 20 70 SOT-23 RT RVA 250 –40 to +85 ADR550BRT-REEL7 5.0 10 40 SOT-23 RT RVB 3,000 –40 to +85 ADR550BRT-R2 5.0 10 40 SOT-23 RT RVB 250 –40 to +85 ADR550BKS-REEL7 5.0 10 40 SC70 KS RVB 3,000 –40 to +85 ADR550BKS-R2 5.0 10 40 SC70 KS RVB 250 –40 to +85

ADR520/ADR525/ADR530/ADR540/ADR550 Rev. A | Page 15 of 16 NOTES

ADR520/ADR525/ADR530/ADR540/ADR550 Rev. A | Page 16 of 16 NOTES © 2003 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C04501–0–12/03(A)