Multiple Output, High Precision, Dual-Tracking Reference Data Sheet AD588 FEATURES FUNCTIONAL BLOCK DIAGRAM NOISE A3 OUT Low drift: 1.5 ppm/C V REDUCTION HIGH A3 IN SENSE Low initial error: 1 mV 7 6 4 3 Pin programmable output +10 V, +5 V, 5 V tracking, 5 V, 10 V A3 OUT A3 1 FORCE R Flexible output force and sense terminals B High impedance ground sense A1 A4 OUT 14 16-lead SOIC package and 16-lead CERDIP SENSE R1 R4 MIL-STD-883-compliant versions available A4 OUT 15 A4 R2 FORCE R5 GENERAL DESCRIPTION +V 2 The AD588 represents a major advance in state-of-the-art R6 S R3 AD588 monolithic voltage references. Low initial error and low A2 16 V S temperature drift give the AD588 absolute accuracy performance 5 9 10 8 12 11 13 previously not available in monolithic form. The AD588 uses a GAIN GND GND V BAL V A4 IN LOW CT proprietary ion-implanted, buried Zener diode and laser-wafer ADJ SENSE SENSE ADJ +IN IN drift trimming of high stability thin film resistors to provide outstanding performance. Figure 1. The AD588 includes the basic reference cell and three additional PRODUCT HIGHLIGHTS amplifiers that provide pin programmable output ranges. The 1. The AD588 offers 12-bit absolute accuracy without any amplifiers are laser trimmed for low offset and low drift to maintain user adjustments. Optional fine-trim connections are the accuracy of the reference. The amplifiers are configured to provided for applications requiring higher precision. The allow Kelvin connections to the load and/or boosters for driving fine trimming does not alter the operating conditions of long lines or high current loads, delivering the full accuracy of the Zener or the buffer amplifiers, and so does not increase the AD588 where it is required in the application circuit. the temperature drift. The low initial error allows the AD588 to be used as a system 2. Output noise of the AD588 is very low, typically 6 V p-p. reference in precision measurement applications requiring A pin is provided for additional noise filtering using an 12-bit absolute accuracy. In such systems, the AD588 can provide a external capacitor. known voltage for system calibration in software. The low drift 3. A precision 5 V tracking mode with Kelvin output also allows compensation for the drift of other components in a connections is available with no external components. system. Manual system calibration and the cost of periodic Tracking error is less than 1 mV, and a fine trim is available recalibration can, therefore, be eliminated. Furthermore, the for applications requiring exact symmetry between the mechanical instability of a trimming potentiometer and the +5 V and 5 V outputs. potential for improper calibration can be eliminated by using 4. Pin strapping capability allows configuration of a wide the AD588 in conjunction with auto calibration software. variety of outputs: 5 V, +5 V, +10 V, 5 V, and 10 V dual outputs or +5 V, 5 V, +10 V, and 10 V single outputs. The AD588 is available in seven versions. The AD588JQ and AD588KQ are packaged in a 16-lead CERDIP and are specified for 0C to +70C operation. The AD588AQ and AD588BQ are packaged in a 16-lead CERDIP, and the AD588ARWZ is packaged in a 16-lead SOIC, and they are specified for the 25C to +85C industrial temperature range. The ceramic AD588TE and AD588TQ grades are specified for the full military/aerospace temperature range. Rev. M Document Feedback 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 19862015 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 00531-001AD588 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Temperature Performance......................................................... 10 General Description ......................................................................... 1 Kelvin Connections .................................................................... 11 Functional Block Diagram .............................................................. 1 Dynamic Performance ............................................................... 13 Product Highlights ........................................................................... 1 Using the AD588 with Converters ............................................... 15 Revision History ............................................................................... 2 AD7535 14-Bit Digital-to-Analog Converter ......................... 15 Specifications ..................................................................................... 3 AD569 16-Bit Digital-to-Analog Converter ........................... 15 Absolute Maximum Ratings ............................................................ 4 Substituting for Internal References ........................................ 16 ESD Caution .................................................................................. 4 AD574A 12-Bit Analog-to-Digital Converter ........................ 16 Pin Configuration and Function Descriptions ............................. 5 Resistance Temperature Detector (RTD) Excitation ............. 16 Theory of Operation ........................................................................ 6 Boosted Precision Current Source ........................................... 17 Applications Information ................................................................ 7 Bridge Driver Circuits ............................................................... 17 Calibration ..................................................................................... 7 Outline Dimensions ....................................................................... 19 Noise Performance and Reduction ............................................ 9 Ordering Guide .......................................................................... 19 Turn-On Time ............................................................................ 10 REVISION HISTORY 11/05Rev. D to Rev. E 11/15Rev. L to Rev. M Updated Format .................................................................. Universal Changes to Figure 13 ...................................................................... 11 Added SOIC Version .......................................................... Universal Changes to Pin 14 in Figures ............................................ Universal 10/10Rev. K to Rev. L Changes to Pin 9 and Pin 10 in Figures ........................... Universal Changes to Amplifier A2 Plus and Minus Input Labels Changes to Specifications Section ................................................... 3 in Figures ........................................................................ Throughout Added Table 3 ....................................................................................4 Added Pin Configuration and Function Descriptions Section ... 5 9/10Rev. J to Rev. K Added Table 4 ....................................................................................5 Changes to Product Title ................................................................. 1 Changes to Grade in Reference and in Figure 12 ....................... 11 Updated Outline Dimensions ....................................................... 19 4/10Rev. I to Rev. J Changes to Ordering Guide .......................................................... 19 Changes to Calibration Section ...................................................... 8 2/03Rev. C to Rev. D 11/09Rev. H to Rev. I Added KQ Model and Deleted SQ and TQ Models ...... Universal Changes to Figure 40 and Figure 41 ............................................. 18 Changes to General Description ..................................................... 1 Change to Product Highlights ......................................................... 1 10/09Rev. G to Rev. H Changes to Specifications ................................................................. 2 Changes to General Description Section ...................................... 1 Changes to Ordering Guide ............................................................. 3 Updated Outline Dimensions ....................................................... 15 6/06Rev. F to Rev. G Changes to Table 5 ............................................................................ 7 10/02Rev. B to Rev. C Updated Outline Dimensions ....................................................... 19 Changes to General Description ..................................................... 1 Changes to Specifications ................................................................. 2 3/06Rev. E to Rev. F Changes to Ordering Guide ............................................................. 3 Replaced Figure 5 ............................................................................. 8 Changes to Table 1 ............................................................................. 5 Updated Outline Dimensions ....................................................... 19 Deleted Figure 10c ............................................................................. 7 Updated Outline Dimensions ....................................................... 15 Rev. M Page 2 of 20