2.7 V to 5.5 V, 450 A, Rail-to-Rail Output, Quad, 12-/16-Bit nanoDACs Data Sheet AD5624/AD5664 FEATURES FUNCTIONAL BLOCK DIAGRAM V V DD GND REF Low power, quad nanoDACs AD5664: 16 bits AD5624/AD5664 AD5624: 12 bits INPUT DAC STRING V A BUFFER OUT REGISTER REGISTER DAC A Relative accuracy: 12 LSBs max SCLK Guaranteed monotonic by design INPUT DAC STRING BUFFER V B OUT INTERFACE REGISTER REGISTER DAC B LOGIC 10-lead MSOP and 3 mm 3 mm LFCSP WD SYNC 2.7 V to 5.5 V power supply INPUT DAC STRING BUFFER V C OUT REGISTER REGISTER DAC C Power-on reset to zero DIN Per channel power-down INPUT DAC STRING V D BUFFER OUT REGISTER REGISTER DAC D Serial interface, up to 50 MHz POWER-ON POWER-DOWN RESET LOGIC APPLICATIONS Figure 1. Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators GENERAL DESCRIPTION The AD5624/AD5664, members of the nanoDAC family, are The AD5624/AD5664 use a versatile 3-wire serial interface that low power, quad, 12-, 16-bit buffered voltage-out DACs that operates at clock rates up to 50 MHz, and are compatible with operate from a single 2.7 V to 5.5 V supply and are guaranteed standard SPI, QSPI, MICROWIRE, and DSP interface monotonic by design. standards. PRODUCT HIGHLIGHTS The AD5624/AD5664 require an external reference voltage to set the output range of the DAC. The device incorporates a 1. Relative accuracy: 12 LSBs maximum. power-on reset circuit that ensures the DAC output powers up 2. Available in 10-lead MSOP and 10-lead, 3 mm 3 mm, to 0 V and remains there until a valid write takes place. The LFCSP WD. devices contain a power-down feature that reduces the current 3. Low power, typically consumes 1.32 mW at 3 V and consumption of the device to 480 nA at 5 V and provides 2.25 mW at 5 V. software-selectable output loads while in power-down mode. 4. Maximum settling time of 4.5 s (AD5624) and 7 s (AD5664). The low power consumption of these devices in normal operation makes them ideally suited to portable battery- Table 1. Related Devices operated equipment. The power consumption is 2.25 mW at 5 Part No. Description V, going down to 2.4 W in power-down mode. AD5624R/AD5644R/AD5664R 2.7 V to 5.5 V quad, 12-, 14-, The AD5624/AD5664 on-chip precision output amplifier allows 16-bit DACs with internal reference rail-to-rail output swing to be achieved. 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 20062018 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. 05943-001AD5624/AD5664 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Serial Interface ............................................................................ 15 Applications ....................................................................................... 1 Input Shift Register .................................................................... 16 Functional Block Diagram .............................................................. 1 SYNC Interrupt .......................................................................... 16 General Description ......................................................................... 1 Power-On Reset .......................................................................... 16 Product Highlights ........................................................................... 1 Software Reset ............................................................................. 17 Revision History ............................................................................... 2 Power-Down Modes .................................................................. 17 Specif icat ions ..................................................................................... 3 LDAC Function .......................................................................... 18 AC Characteristics ........................................................................ 4 Microprocessor Interfacing ....................................................... 19 Timing Characteristics ................................................................ 5 Applications Information .............................................................. 20 Timing Diagram ........................................................................... 5 Choosing a Reference for the AD5624/AD5664 ........................ 20 Absolute Maximum Ratings ............................................................ 6 Using a Reference as a Power Supply for the AD5624/AD5664 ........................................................................ 20 ESD Caution .................................................................................. 6 Bipolar Operation Using the AD5624/AD5664 ......................... 21 Pin Configuration and Function Descriptions ............................. 7 Using AD5624/AD5664 with a Galvanically Isolated Typical Performance Characteristics ............................................. 8 Interface ....................................................................................... 21 Terminology .................................................................................... 13 Power Supply Bypassing and Grounding ................................ 21 Theory of Operation ...................................................................... 15 Outline Dimensions ....................................................................... 22 D/A Section ................................................................................. 15 Ordering Guide ............................................................................... 23 Resistor String ............................................................................. 15 Output Amplifier ........................................................................ 15 REVISION HISTORY 6/2018Rev. 0 to Rev. A Changes to Figure 3 Caption and Table 6 ...................................... 7 Add Figure 4 Renumber Sequentially ........................................... 7 Changed Applications Section to Applications Information Section .............................................................................................. 20 Updated Outline Dimensions ....................................................... 22 Changes to Ordering Guide .......................................................... 23 6/2006Revision 0: Initial Version Rev. A Page 2 of 23