AD1580

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Technical content

1.2 V Micropower, Precision

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 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: 781.461.3113 ©2003-2011 Analog Devices, Inc. All rights reserved.

FEATURES

Wide operating range: 50 µA to 10 mA Initial accuracy: ±0.1% maximum Temperature drift: ±50 ppm/°C maximum Output impedance: 0.5 Ω maximum Wideband noise (10 Hz to 10 kHz): 20 µV rms Operating temperature range: −40°C to +85°C High ESD rating 4 kV human body model

400 V machine model

Compact, surface-mount SOT-23 and SC70 packages

APPLICATIONS

Portable, battery-powered equipment Cellular phones, notebook computers, PDAs, GPSs, and DMMs Computer workstations Suitable for use with a wide range of video RAMDACs Smart industrial transmitters PCMCIA cards Automotive

3 V/5 V, 8-bit to 12-bit data converters

The superior accuracy and stability of the AD1580 is made possible by the precise matching and thermal tracking of on-chip components. Proprietary curvature correction design techniques have been used to minimize the nonli- nearities in the voltage output temperature characteristics. The AD1580 is stable with any value of capacitive load. is a low cost, 2-terminal (shunt), precision band gap reference. It provides an accurate 1.225 V output for input currents between 50 μA and 10 mA. The low minimum operating current makes the AD1580 ideal for use in battery-powered 3 V or 5 V systems. However, the wide operating current range means that the AD1580 is extremely versatile and suitable for use in a wide variety of high current applications. The AD1580 is available in two grades, A and B, both of which are provided in the SOT-23 and SC70 packages, the smallest surface-mount packages available. Both grades are specified over the industrial temperature range of −40°C to +85°C. 1 Protected by U.S. Patent No. 5,969,657. PIN CONFIGURATIONS NC = NO CONNECT TOP VIEW V+ 1 V– 2 NC (OR V–)3 AD1580 00700-001 NC = NO CONNECT TOP VIEW V– 1 V+ 2 NC (OR V–)3 AD1580 00700-002 Figure 1. SOT-23 Figure 2. SC70 Figure 3. Reverse Voltage Temperature Drift Distribution Figure 4. Reverse Voltage Error Distribution

Rev. F | Page 2 of 12 TABLE OF CONTENTS

REVISION HISTORY

7/11—Rev. E to Rev. F 7/11—Rev. D to Rev. E 1/08—Rev. C to Rev. D 7/06—Rev. B to Rev. C 7/04—Rev. A to Rev. B 10/03—Rev. 0 to Rev. A

Rev. F | Page 3 of 12 SPECIFICATIONS TA = 25°C, IIN = 100 µA, unless otherwise noted. Table 1. Model AD1580A AD1580B Unit Min Typ Max Min Typ Max REVERSE VOLTAGE OUTPUT (SC70) 1.2225 1.225 1.2275 V REVERSE VOLTAGE TEMPERATURE DRIFT −40°C to +85°C 100 50 ppm/°C MINIMUM OPERATING CURRENT, TMIN to TMAX 50 50 μA REVERSE VOLTAGE CHANGE WITH REVERSE CURRENT 50 μA < IIN < 10 mA, TMIN to TMAX 2.5 6 2.5 6 mV 50 μA < IIN < 1 mA, TMIN to TMAX 0.5 0.5 mV DYNAMIC OUTPUT IMPEDANCE (∆VR/ΔIR) IIN = 1 mA ± 100 μA (f = 120 Hz) 0.4 1 0.4 0.5 Ω OUTPUT NOISE RMS Noise Voltage: 10 Hz to 10 kHz 20 20 μV rms Low Frequency Noise Voltage: 0.1 Hz to 10 Hz 5 5 μV p-p TURN-ON SETTLING TIME TO 0.1%1 5 5 µs OUTPUT VOLTAGE HYSTERESIS2 80 80 µV TEMPERATURE RANGE Specified Performance, TMIN to TMAX −40 +85 −40 +85 °C Operating Range3 −55 +125 −55 +125 °C 1 Measured with no load capacitor. 2 Output hysteresis is defined as the change in the +25°C output voltage after a temperature excursion to +85°C and then to −40°C. 3 The operating temperature range is defined as the temperature extremes at which the device continues to function. Parts may deviate from their specified performance.

Rev. F | Page 4 of 12 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Rating Reverse Current 25 mA Forward Current 20 mA Internal Power Dissipation1 SOT-23 (RT) 0.3 W Storage Temperature Range −65°C to +150°C Operating Temperature Range AD1580/RT −55°C to +125°C Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C ESD Susceptibility2 Human Body Model 4 kV Machine Model 400 V 1 Specification is for device in free air at 25°C, SOT-23 package. θJA = 300°C/W. 2 The human body model is a 100 pF capacitor discharged through 1.5 kΩ. For the machine model, a 200 pF capacitor is discharged directly into the device. 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 indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD CAUTION

multiplying DACs, such as the AD7943, AD7945, and AD7948. Figure 26. Single-Supply System

0.60 MAX

0.30 MIN

0.10 MAX

0.65 BSC

Figure 27. 3-Lead Small Outline Transistor Package [SOT-23-3] Figure 28. 3-Lead Thin Shrink Small Outline Transistor Package [SC70]

1.50 MIN

14.40 MIN

Figure 29. Tape and Reel Dimensions

Rev. F | Page 12 of 12 ORDERING GUIDE Model1 Temperature Range Initial Output Error Temperature Coefficient Package

Description

AD1580ART-REEL −40°C to +85°C 10 mV 100 ppm/°C 3-Lead SOT-23-3 RT-3 0Axx AD1580ARTZ-REEL −40°C to +85°C 10 mV 100 ppm/°C 3-Lead SOT-23-3 RT-3 R0Y AD1580ARTZ-REEL7 −40°C to +85°C 10 mV 100 ppm/°C 3-Lead SOT-23-3 RT-3 R0Y AD1580BRT-REEL7 −40°C to +85°C 1 mV 50 ppm/°C 3-Lead SOT-23-3 RT-3 0Bxx AD1580BRTZ-R2 −40°C to +85°C 1 mV 50 ppm/°C 3-Lead SOT-23-3 RT-3 R2E AD1580BRTZ-REEL7 −40°C to +85°C 1 mV 50 ppm/°C 3-Lead SOT-23-3 RT-3 R2E AD1580BKSZ-REEL −40°C to +85°C 2.5 mV 50 ppm/°C 3-Lead SC70 KS-3 R2E AD1580BKSZ-REEL7 −40°C to +85°C 2.5 mV 50 ppm/°C 3-Lead SC70 KS-3 R2E 1 Z = RoHS Compliant Part. PACKAGE BRANDING INFORMATION In the SOT-23 package (RT), four marking fields identify the device generic, grade, and date of processing. The first field is the product identifier. A 0 identifies the generic as the AD1580. The second field indicates the device grade: A or B. In the third field, a numeral or letter indicates a calendar year: 5 for 1995, A for 2001. In the fourth field, letters A through Z represent a two-week window within the calendar year, starting with A for the first two weeks of January. ©2003-2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00700-0-7/11(F)