40-Channel, 3 V/5 V, Single-Supply, 14-Bit, denseDAC Data Sheet AD5380 FEATURES INTEGRATED FUNCTIONS Guaranteed monotonic Channel monitor INL error: 4 LSB max Simultaneous output update via LDAC On-chip 1.25 V/2.5 V, 10 ppm/C reference Clear function to user programmable code Temperature range: 40C to +85C Amplifier boost mode to optimize slew rate Rail-to-rail output amplifier User programmable offset and gain adjust Power down Toggle mode enables square wave generation Package type: 100-lead LQFP (14 mm 14 mm) Thermal monitor User interfaces Parallel APPLICATIONS Serial (SPI-, QSPI-, MICROWIRE-, DSP-compatible, Variable optical attenuators (VOA) featuring data readback) Level setting (ATE) 2 I C-compatible Optical micro-electro-mechanical systems (MEMS) Robust 6.5 kV HBM and 2 kV FICDM ESD rating Control systems Instrumentation FUNCTIONAL BLOCK DIAGRAM DVDD (3) DGND (3) AVDD (5) AGND (5) DAC GND (5) REFGND REFOUT/REFIN SIGNAL GND (5) PD AD5380 1.25V/2.5V SER/PAR REFERENCE FIFO EN CS/(SYNC/AD0) WR/(DCEN/AD1) 14 14 14 14 INPUT DAC SDO DAC 0 REG0 REG0 VOUT DB13/(DIN/SDA) 14 m REG0 DB12/(SCLK/SCL) FIFO 14 2 DB11/(SPI/I C) c REG0 R + R DB10 INTERFACE STATE CONTROL MACHINE 14 14 14 14 LOGIC INPUT DAC + DAC 1 DB0 REG1 REG1 CONTROL VOUT1 LOGIC 14 A5 VOUT2 m REG1 A0 14 c REG1 R VOUT3 R REG0 VOUT4 14 14 14 14 VOUT5 INPUT DAC REG1 DAC 6 REG6 REG6 VOUT6 POWER-ON RESET RESET 14 m REG6 BUSY 14 c REG6 R R CLR 14 14 14 14 INPUT DAC VOUT0VOUT38 DAC 7 REG7 REG7 VOUT7 14 VOUT8 m REG7 39-TO-1 14 R c REG7 MUX R 5 VOUT38 VOUT39/MON OUT LDAC Figure 1. Rev. D 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 20042014 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. 03731-001AD5380 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Function ......................................................................... 26 RESET Integrated Functions ........................................................................ 1 Asynchronous Clear Function .................................................. 26 Applications ....................................................................................... 1 and Functions...................................................... 26 BUSY LDAC Functional Block Diagram .............................................................. 1 FIFO Operation in Parallel Mode ............................................ 26 Revision History ............................................................................... 3 Power-On Reset .......................................................................... 26 General Description ......................................................................... 4 Power-Down ............................................................................... 26 Specif icat ions ..................................................................................... 5 AD5380 Interfaces .......................................................................... 27 AD5380-5 Specifications ............................................................. 5 DSP-, SPI-, Microwire-Compatible Serial Interfaces ............ 27 2 AD5380-3 Specifications ............................................................. 7 I C Serial Interface ..................................................................... 29 AC Characteristics ........................................................................ 8 Parallel Interface ......................................................................... 31 Timing Characteristics ..................................................................... 9 Microprocessor Interfacing ....................................................... 32 Serial Interface .............................................................................. 9 Applications Information .............................................................. 34 2 I C Serial Interface ...................................................................... 11 Power Supply Decoupling ......................................................... 34 Parallel Interface ......................................................................... 12 Power Supply Sequencing ......................................................... 34 Absolute Maximum Ratings .......................................................... 14 Typical Configuration Circuit .................................................. 35 ESD Caution ................................................................................ 14 AD5380 Monitor Function ....................................................... 36 Pin Configuration and Function Descriptions ........................... 15 Toggle Mode Function ............................................................... 36 Terminology .................................................................................... 18 Thermal Monitor Function ....................................................... 37 Typical Performance Characteristics ........................................... 19 AD5380 in a MEMS Based Optical Switch ............................. 37 Functional Description .................................................................. 22 Optical Attenuators .................................................................... 38 DAC ArchitectureGeneral ..................................................... 22 Utilizing the AD5380 FIFO ...................................................... 39 Data Decoding ............................................................................ 22 Outline Dimensions ....................................................................... 40 On-Chip Special Function Registers (SFR) ............................ 23 Ordering Guide .......................................................................... 40 SFR Commands .......................................................................... 23 Hardware Functions ....................................................................... 26 Rev. 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