Quad, Current-Output, Serial-Input 16-/14-Bit DACs Data Sheet AD5544/AD5554 FEATURES FUNCTIONAL BLOCK DIAGRAM AD5544: 16-bit resolution INL of 1 LSB (B Grade) 16-BIT (AD5544) V DD 14-BIT (AD5554) AD5554: 14-bit resolution D0 R A FB D1 SDO INL of 0.5 LSB (B Grade) D2 INPUT DAC A DAC A I A D3 OUT REGISTER REGISTER R R 2 mA full-scale current 20%, with V = 10 V REF D4 D5 A A GND 0.9 s settling time to 0.1% D6 D7 R B FB D8 12 MHz multiplying bandwidth INPUT D9 DAC B I B DAC B OUT REGISTER REGISTER D10 R R Midscale glitch of 1 nV-sec D11 A B GND D12 Midscale or zero-scale reset D13 R C D14 FB 4 separate, 4-quadrant multiplying reference inputs D15 INPUT DAC C I C A0 DAC C OUT SDI REGISTER REGISTER SPI-compatible, 3-wire interface R R A1 A C GND Double-buffered registers enable CS R D CLK EN FB Simultaneous multichannel change INPUT DAC D I D DAC D OUT Internal power-on reset REGISTER R REGISTER R DAC A B A D GND Temperature range: 40C to +125C C D Compact 28-lead SSOP and 32-lead LFCSP 2:4 DECODE POWER-ON A F GND RESET 1 AD5544/AD5554 APPLICATIONS DGND MSB V RS LDAC SS Automatic test equipment 1 AD5544 IS 16-BIT AD5554 IS 14-BIT Instrumentation Figure 1. Digitally controlled calibration GENERAL DESCRIPTION The AD5544/AD5554 quad, 16-/14-bit, current output, digital- The AD5544 is packaged in the compact 28-lead SSOP and 32-lead to-analog converters (DACs) are designed to operate from a LFCSP. The AD5554 is packaged in the compact 28-lead SSOP. 2.7 V to 5.5 V supply range. The EV-AD5544/45SDZ is available for evaluating DAC perfor- The applied external reference input voltage (VREFx) determines mance. For more information, see the UG-285 evaluation board the full-scale output current. Integrated feedback resistors (R ) user guide. FB provide temperature-tracking, full-scale voltage outputs when 0.7 combined with an external I-to-V precision amplifier. 0.6 A double-buffered serial data interface offers high speed, 3-wire, 0.5 SPI- and microcontroller-compatible inputs using serial data in 0.4 (SDI), a chip select (CS), and clock (CLK) signals. In addition, 0.3 a serial data out pin (SDO) allows for daisy-chaining when multiple packages are used. A common, level-sensitive, load DAC strobe 0.2 LDAC ( ) input allows the simultaneous update of all DAC outputs 0.1 from previously loaded input registers. Additionally, an internal 0 power-on reset forces the output voltage to 0 at system turn-on. The MSB pin allows system reset assertion (RS) to force all registers 0.1 to zero code when MSB = 0 or to half-scale code when MSB = 1. 0.2 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 CODE Figure 2. AD5544 INL vs. Code Plot (TA = 25C) Rev. H 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. 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INL ERROR (LSB) V A REF V B REF V C REF V D REF 00943-002 00943-001AD5544/AD5554 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Digital-to-Analog Converter (DAC) ....................................... 14 Applications ....................................................................................... 1 Serial Data Interface ....................................................................... 16 Functional Block Diagram .............................................................. 1 Truth Tables................................................................................. 17 General Description ......................................................................... 1 Power-On Reset .......................................................................... 18 Revision History ............................................................................... 2 ESD Protection Circuits ............................................................ 18 Specif icat ions ..................................................................................... 4 Power Supply Sequence ............................................................. 18 AD5544 Electrical Characteristics ............................................. 4 Layout and Power Supply Bypassing ....................................... 19 AD5554 Electrical Characteristics ............................................. 5 Grounding ................................................................................... 19 Timing Diagrams .......................................................................... 7 Applications Information .............................................................. 20 Absolute Maximum Ratings ............................................................ 8 Reference Selection .................................................................... 20 ESD Caution .................................................................................. 8 Amplifier Selection .................................................................... 20 Pin Configurations and Function Descriptions ........................... 9 Outline Dimensions ....................................................................... 22 Typical Performance Characteristics ........................................... 11 Ordering Guide .......................................................................... 23 Theory of Operation ...................................................................... 14 REVISION HISTORY 9/15Rev. G to Rev. H Changed NC to DNC .................................................... Throughout 9/09Rev. C to Rev. D Changes to Figure 1 .......................................................................... 1 Changes to Features Section ............................................................ 1 Changes to Figure 6 and Table 4 ..................................................... 9 Changes to Table 1 ............................................................................. 3 Changes to Table 2 ............................................................................. 4 5/13Rev. F to Rev. G Changes to Figure 12 ......................................................................... 9 Changes to General Description Section ...................................... 1 Changes to Figure 19 ...................................................................... 10 Deleted Evaluation Board for the AD5544 Section and Changes to Table 8 and Table 9 .................................................... 13 Figure 30 to Figure 35 Renumbered Sequentially ..................... 22 Changes to Ordering Guide .......................................................... 16 Updated Outline Dimensions ....................................................... 21 Changes to Ordering Guide .......................................................... 22 8/09Rev. B to Rev. C Change to Table 1 .............................................................................. 3 1/12Rev. E to Rev. F Change to Table 2 .............................................................................. 4 Changes to Figure 1 .......................................................................... 1 Added Figure 18 Renumbered Sequentially .............................. 11 8/09Rev. A to Rev. B Changes to Evaluation Board Schematics Section ..................... 22 Changes to Features Section ............................................................ 1 Changes to Figure 2 ........................................................................... 1 6/11Rev. D to Rev. E Changes to Table 1 ............................................................................. 3 Added 32-Lead LFCSP .................................................. Throughout Changes to Table 2 ............................................................................. 4 Moved Timing Diagram ................................................................... 5 Changes to Table 1, Supply Characteristics Parameters .............. 3 Changes to Table 2, Supply Characteristics Parameters .............. 5 Added Figure 4 Renumbered Sequentially ................................... 5 Added Figure 6, Renumbered Subsequent Figures, Changes Change to Table 3 .............................................................................. 6 to Table 4 ............................................................................................ 7 Changes to Table 4 ............................................................................. 7 Changed Applications Section to Applications Information Changes to Typical Performance Characteristics Section ........... 8 Section, Added Reference Selection and Amplifier Selection Changes to Figure 19 ...................................................................... 10 Sections ............................................................................................ 19 Moved Table 5, Table 6, and Table 7 ............................................ 12 Added Evaluation Board for the AD5544 Section ..................... 21 Moved Truth Tables Section ......................................................... 13 Deleted Figure 27 Renumbered Sequentially ............................ 14 Updated Outline Dimensions ....................................................... 17 Changes to Ordering Guide .......................................................... 18 Updated Outline Dimensions ....................................................... 16 Changes to Ordering Guide .......................................................... 16 Rev. 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