2.7 V to 5.5 V, 250 A, Rail-to-Rail Output, Dual 16-Bit nanoDAC Data Sheet AD5663 FEATURES FUNCTIONAL BLOCK DIAGRAM V V DD REF Low power, dual 16-bit nanoDAC Relative accuracy: 12 LSBs maximum LDAC Guaranteed monotonic by design INPUT DAC STRING SCLK BUFFER V A OUT REGISTER REGISTER DAC A 10-lead MSOP and 3 mm 3 mm LFCSP WD INTERFACE SYNC LOGIC 2.7 V to 5.5 V power supply INPUT DAC STRING BUFFER V B OUT DIN REGISTER REGISTER DAC B Per channel power-down Power-on reset to zero scale or midscale LDAC CLR AD5663 Hardware and functions POWER-ON POWER-DOWN RESET LOGIC Serial interface up to 50 MHz LDAC CLR GND Figure 1. APPLICATIONS Process control Table 1. Related Devices Data acquisition systems Part No. Description Portable battery-powered instruments AD5623R/AD5643R/AD5663R 2.7 V to 5.5 V, dual 12-/14-/16-bit Digital gain and offset adjustment DACs with internal reference Programmable voltage and current sources Programmable attenuators GENERAL DESCRIPTION PRODUCT HIGHLIGHTS 1. Dual 16-bit DAC relative accuracy of 12 LSBs maximum. The AD5663, a member of the nanoDAC family, is a low 2. Available in 10-lead MSOP and 10-lead, 3 mm 3 mm power, dual, 16-bit buffered voltage-out DAC that operates from a LFCSP WD packages. single 2.7 V to 5.5 V supply and is guaranteed monotonic by 3. Low power typically consumes 0.6 mW at 3 V and design. 1.25 mW at 5 V. The AD5663 requires an external reference voltage to set the 4. 7 s maximum settling time. output range of the DAC. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V or midscale (AD5663BRMZ-1) and remains there until a valid write takes place. The part contains a power-down feature that reduces the current consumption of the device to 480 nA at 5 V and provides software-selectable output loads while in power- down mode. The low power consumption of this part in normal operation makes it ideally suited to portable, battery-operated equipment. The power consumption is 1.25 mW at 5 V, going down to 2.4 W in power-down mode. The on-chip precision output amplifier of the AD5663 allows rail-to-rail output swing to be achieved. The AD5663 uses a versatile, 3-wire serial interface that operates at clock rates up to 50 MHz and is compatible with standard SPI, QSPI, MICROWIRE, and DSP interface standards. Rev. A 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 20062016 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. 05855-001AD5663 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Output Amplifier ........................................................................ 14 Applications ....................................................................................... 1 Serial Interface ............................................................................ 14 Functional Block Diagram .............................................................. 1 Input Shift Register .................................................................... 14 General Description ......................................................................... 1 SYNC Interrupt .......................................................................... 15 Product Highlights ....................................................................... 1 Power-On Reset .......................................................................... 15 Revision History ............................................................................... 2 Software Reset ............................................................................. 15 Specifications ..................................................................................... 3 Power-Down Modes .................................................................. 16 AC Characteristics ........................................................................ 4 LDAC Function .......................................................................... 16 Timing Characteristics ................................................................ 5 Microprocessor Interfacing ....................................................... 18 Timing Diagram ........................................................................... 5 Applications ..................................................................................... 19 Absolute Maximum Ratings ............................................................ 6 Choosing a Reference for the AD5663 .................................... 19 ESD Caution .................................................................................. 6 Using a Reference as a Power Supply for the AD5663 .......... 19 Pin Configuration and Function Description .............................. 7 Bipolar Operation Using the AD5663 ..................................... 20 Typical Performance Characteristics ............................................. 8 Using the AD5663 with a Galvanically Isolated Interface .... 20 Terminology .................................................................................... 12 Power Supply Bypassing and Grounding ................................ 20 Theory of Operation ...................................................................... 14 Outline Dimensions ....................................................................... 21 D/A Section ................................................................................. 14 Ordering Guide .......................................................................... 21 Resistor String ............................................................................. 14 REVISION HISTORY 11/2016Rev. 0 to Rev. A Changed ADSP-BF53x to ADSP-BF537 ..................... Throughout Added Figure 4 Renumbered Sequentially .................................. 7 Changes to Table 6 ............................................................................ 7 Change to Figure 28 ....................................................................... 14 Changes to Software Reset Section .............................................. 15 Changes to Figure 33 ...................................................................... 18 Updated Outline Dimensions ....................................................... 21 Changes to Ordering Guide .......................................................... 21 4/2006Revision 0: Initial Version Rev. A Page 2 of 24