Data Sheet AD5672R/AD5676R Octal, 12-/16-Bit nanoDAC+ with 2 ppm/C Reference, SPI Interface FEATURES GENERAL DESCRIPTION High performance The AD5672R/AD5676R are low power, octal, 12-/16-bit buffered voltage output digital-to-analog converters (DACs). They include a High relative accuracy (INL): 3 LSB maximum at 16 bits 2.5 V, 2 ppm/C internal reference (enabled by default) and a gain Total unadjusted error (TUE): 0.14% of FSR maximum select pin giving a full-scale output of 2.5 V (gain = 1) or 5 V (gain Offset error: 1.5 mV maximum = 2). The devices operate from a single 2.7 V to 5.5 V supply Gain error: 0.06% of FSR maximum and are guaranteed monotonic by design. The AD5672R/AD5676R Low drift 2.5 V reference: 2 ppm/C typical are available in a 20-lead TSSOP and in a 20-lead LFCSP and Wide operating ranges incorporate a power-on reset circuit and a RSTSEL pin that ensures that the DAC outputs power up to zero scale or midscale and 40C to +125C temperature range remains there until a valid write. The AD5672R/AD5676R contain 2.7 V to 5.5 V power supply range a power-down mode, reducing the current consumption to 1 A Simplified implementation typical while in power-down mode. The AD5676R is also available User selectable gain of 1 or 2 (GAIN pin/gain bit) in a 16-ball WLCSP. 1.8 V logic compatibility Table 1. Octal nanoDAC+ Devices 50 MHz SPI with readback or daisy chain Interface Reference 16-Bit 12-Bit 20-lead, RoHS compliant TSSOP and LFCSP SPI Internal AD5676R AD5672R 16-ball, RoHS compliant WLCSP (AD5676R) External AD5676 Not applicable 2 I C Internal AD5675R AD5671R APPLICATIONS Optical transceivers PRODUCT HIGHLIGHTS Base station power amplifiers 1. High Relative Accuracy (INL). Process control (PLC input/output cards) AD5672R (12-bit): 1 LSB maximum. Industrial automation AD5676R (16-bit): 3 LSB maximum. Data acquisition systems 2. Low Drift, 2.5 V On-Chip Reference. 3. High Channel Density. Eight channels in 2.5 mm 2.4 mm WLCSP (AD5676R). FUNCTIONAL BLOCK DIAGRAM Figure 1. Rev. E Information furnished by Analog Devices is believed to be accurate and reliableas i. However, no responsibility is assumed by Analog DOCUMENT FEEDBACK 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 TECHNICAL SUPPORT registered trademarks are the property of their respective owners.Data Sheet AD5672R/AD5676R TABLE OF CONTENTS Features................................................................ 1 Daisy-Chain Operation.....................................28 Applications........................................................... 1 Readback Operation........................................ 28 General Description...............................................1 Power-Down Operation....................................29 Product Highlights................................................. 1 Load DAC (Hardware LDAC Pin).....................30 Functional Block Diagram......................................1 LDAC Mask Register........................................30 Specifications........................................................ 4 Hardware Reset (RESET)................................31 AD5672R Specifications.....................................4 Reset Select Pin (RSTSEL)............................. 31 AD5676R Specifications.....................................6 Software Reset.................................................31 AC Characteristics..............................................9 Amplifier Gain Selection on LFCSP and Timing Characteristics........................................9 WLCSP...........................................................31 Daisy-Chain and Readback Timing Internal Reference Setup................................. 31 Characteristics................................................10 Solder Heat Reflow.......................................... 31 Absolute Maximum Ratings.................................12 Long-Term Temperature Drift........................... 31 Thermal Resistance......................................... 12 Thermal Hysteresis.......................................... 32 ESD Caution.....................................................12 Applications Information...................................... 33 Pin Configurations and Function Descriptions.....13 Power Supply Recommendations.................... 33 Typical Performance Characteristics...................15 Microprocessor Interfacing...............................33 Terminology......................................................... 24 AD5672R/AD5676R to ADSP-BF531 Theory of Operation.............................................26 Interface......................................................... 33 Digital-to-Analog Converter..............................26 AD5672R/AD5676R to SPORT Interface.........33 Transfer Function............................................. 26 Layout Guidelines.............................................33 DAC Architecture..............................................26 Galvanically Isolated Interface......................... 33 Serial Interface................................................. 26 Outline Dimensions............................................. 35 Standalone Operation...................................... 28 Ordering Guide.................................................36 Write and Update Commands..........................28 Evaluation Boards............................................ 36 REVISION HISTORY 12/2021Rev. D to Rev. E Added 16-Ball WLCSP.....................................................................................................................................1 Changed V Pin to V Pin...................................................................................................................1 REFOUT REF Changes to Features Section.......................................................................................................................... 1 Changes to Product Highlights Section........................................................................................................... 1 Changes to All Power-Down Modes Parameter, Table 2.................................................................................4 Deleted Output Current Drive (I ) Parameter and Resistive Load Parameter, Table 2................................4 OUT Deleted Note 2, Table 2 Renumbered Sequentially........................................................................................4 Changes to Static Performance Parameter, Reference Temperature Coefficient Parameter, Input Current Parameter, and All Power-Down Modes Parameter, Table 3............................................................6 Deleted Output Current Drive (I ) Parameter and Resistive Load Parameter, Table 3................................6 OUT Deleted Note 2, Table 3 Renumbered Sequentially........................................................................................6 Changes to Output Noise Spectral Density Parameter, Table 4...................................................................... 9 Changes to Table 8........................................................................................................................................12 Added Figure 8 Renumbered Sequentially...................................................................................................13 Changes to Table 9........................................................................................................................................13 Changes to Figure 9 to Figure 28, Figure 28 Caption, Figure 35, Figure 36, Figure 42 Caption, Figure 43, Figure 50, and Figure 52........................................................................................................................15 Deleted Figure 29 Renumbered Sequentially...............................................................................................15 Changes to Transfer Function Section...........................................................................................................26 Added Note 1, Table 10 Renumbered Sequentially......................................................................................27 analog.com Rev. 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