Dual 12-Bit, High Bandwidth, Multiplying DAC with 4-Quadrant Resistors and Serial Interface Data Sheet AD5415 FEATURES GENERAL DESCRIPTION 1 10 MHz multiplying bandwidth The AD5415 is a CMOS, 12-bit, dual-channel, current output On-chip 4-quadrant resistors allow flexible output ranges digital-to-analog converter (DAC). This device operates from a INL of 1 LSB 2.5 V to 5.5 V power supply, making it suited to battery-powered 24-lead TSSOP package applications and other applications. As a result of being manufac- 2.5 V to 5.5 V supply operation tured on a CMOS submicron process, this device offers excellent 10 V reference input 4-quadrant multiplication characteristics with large signal 50 MHz serial interface multiplying bandwidths of 10 MHz. 2.47 MSPS update rate Extended temperature range: 40C to 125C The applied external reference input voltage (V ) determines REF 4-quadrant multiplication the full-scale output current. An integrated feedback resistor (R ) FB Power-on reset provides temperature tracking and full-scale voltage output when 0.5 A typical current consumption combined with an external current to voltage precision amplifier. Guaranteed monotonic In addition, this device contains the 4-quadrant resistors necessary Daisy-chain mode for bipolar operation and other configuration modes. Readback function This DAC uses a double-buffered, 3-wire serial interface that is APPLICATIONS compatible with SPI, QSPI, MICROWIRE, and most DSP Portable battery-powered applications interface standards. In addition, a serial data out pin (SDO) allows Waveform generators daisy-chaining when multiple packages are used. Data readback Analog processing allows the user to read the contents of the DAC register via the Instrumentation applications SDO pin. On power-up, the internal shift register and latches Programmable amplifiers and attenuators are filled with 0s, and the DAC outputs are at zero scale. Digitally controlled calibration Programmable filters and oscillators The AD5415 DAC is available in a 24-lead TSSOP package. The Composite video EV-AD5415/49SDZ evaluation board is available for evaluating Ultrasound DAC performance. For more information, see UG-296, Evaluating Gain, offset, and voltage trimming the AD5415 Serial Input, Dual-Channel Current Output DAC. FUNCTIONAL BLOCK DIAGRAM R3A R2 3A R2A V A R1A REF R3 R2 R 2R 2R R1 FB AD5415 2R 2R V DD R A FB SYNC I 1A OUT 12-BIT SHIFT INPUT DAC SCLK R-2R DAC A REGISTER REGISTER REGISTER I 2A SDIN OUT SDO LDAC I 1B OUT 12-BIT INPUT DAC R-2R DAC B REGISTER REGISTER I 2B OUT POWER-ON CLR RESET R B FB R1 R GND FB R3 R2 2R 2R 2R 2R R3B R2 3B R2B V B R1B REF Figure 1. 1 U.S. Patent Number 5,689,257. Rev. F 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 20042015 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com 04461-001AD5415 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Circuit Operation ....................................................................... 15 Applications ....................................................................................... 1 Single-Supply Applications ....................................................... 16 General Description ......................................................................... 1 Adding Gain ................................................................................ 17 Functional Block Diagram .............................................................. 1 Divider or Programmable Gain Element ................................ 17 Revision History ............................................................................... 2 Reference Selection .................................................................... 18 Specif icat ions ..................................................................................... 3 Amplifier Selection .................................................................... 18 Timing Characteristics ................................................................ 5 Serial Interface ............................................................................ 20 Absolute Maximum Ratings ............................................................ 7 Microprocessor Interfacing ....................................................... 22 ESD Caution .................................................................................. 7 PCB Layout and Power Supply Decoupling ........................... 24 Pin Configuration and Function Descriptions ............................. 8 Overview of the AD5424 to AD5547 Devices ............................ 25 Typical Performance Characteristics ............................................. 9 Outline Dimensions ....................................................................... 26 Terminology .................................................................................... 14 Ordering Guide .......................................................................... 26 General Description ....................................................................... 15 DAC Section ................................................................................ 15 REVISION HISTORY 12/15Rev. E to Rev. F 7/05Rev. 0 to Rev. A Deleted Positive Output Voltage Section ..................................... 17 Changes to Features List ................................................................... 1 Changes to Adding Gain Section ................................................. 17 Change to General Description ....................................................... 1 Changes to Reference Selection Section ...................................... 18 Changes to Specifications ................................................................. 3 Changes to ADSP21xx to AD5415 Interface Section, Changes to Timing Characteristics ................................................. 5 ADSP-BF504 to ADSP-BF592 Device Family to AD5415 Interface Change to Figure 8 and Figure 9 ..................................................... 9 Section, Figure 41, and Figure 42 .................................................. 22 Change to Figure 13 ....................................................................... 10 Changes to MC68HC11 to AD5415 Interface Section and Change to Figure 27 Through Figure 29 ..................................... 12 PIC16C6x/PIC16C7x to AD5415 Interface Section .................. 23 Change to Figure 32 ....................................................................... 15 Changes to Overview of the AD5424 to AD5547 Devices Changes to Table 5 and Table 6 .................................................... 15 Section Title ...................................................................................... 25 Change to Stability Section ........................................................... 16 Changes to Voltage-Switching Mode of Operation Section ..... 16 5/13Rev. D to Rev. E Change to Figure 35 ....................................................................... 16 Changes to General Description .................................................... 1 Changes to Divider or Programmable Gain Element Section .... 17 Change to Ordering Guide ............................................................ 26 Changes to Figure 36 Through Figure 38.................................... 17 Changes to Table 7 Through Table 10 ......................................... 19 5/12Rev. C to Rev. D Added ADSP-BF5xx-to-AD5415 Interface Section ................... 22 Changes SDO Control (SDO1 and SDO2) Section ................... 20 Change to 80C51/80L51-to-AD5415 Interface Section ............ 23 Change to MC68HC11-to-AD5415 Interface Section .............. 23 6/11Rev. B to Rev. C Change to Power Supplies for the Evaluation Board Section ... 24 Changes to General Description ................................................... 1 Changes to Table 13 ....................................................................... 28 Deleted Evaluation Board for the DAC Section and Power Updated Outline Dimensions ....................................................... 29 Supplies for the Evaluation Board Section .................................. 24 Changes to Ordering Guide .......................................................... 29 Changes to Ordering Guide .......................................................... 26 7/04Revision 0: Initial Version 4/10Rev. A to Rev. B Added Figure 4 .................................................................................. 6 Rev. F Page 2 of 27