18-Bit, 2 MSPS, Module Data Acquisition Solution Data Sheet ADAQ4003 FEATURES GENERAL DESCRIPTION Improved design journey The ADAQ4003 is a Module precision data acquisition (DAQ), Fully differential ADC driver with selectable input range signal chain solution that reduces the development cycle of a Input ranges with 5 V VREF: 10 V, 5 V, or 2.5 V precision measurement system by transferring the signal chain Essential passive components included design challenge of component selection, optimization, and 0.005% iPassives matched resistor array layout from the designer to the device. Wide input common-mode voltage range High common-mode rejection ratio Using system-in-package (SIP) technology, the ADAQ4003 Single-ended to differential conversion reduces end system component count by combining multiple Increased signal chain density common signal processing and conditioning blocks into a Small, 7 mm 7 mm, 0.80 mm pitch, 49-ball CSP BGA single device. These blocks include a high resolution 18-bit, 4 footprint reduction vs. discrete solution 2 MSPS successive approximation register (SAR), analog-to- On-board reference buffer with VCM generation digital converter (ADC), a low noise, fully differential ADC High performance driver amplifier (FDA), and a stable reference buffer. Throughput: 2 MSPS, no pipeline delay Using Analog Devices, Inc., iPassives technology, the Guaranteed 18-bit no missing codes ADAQ4003 also incorporates crucial passive components with INL: 3 ppm typical, 8 ppm guaranteed superior matching and drift characteristics to minimize SINAD: 99 dB typical (G = 0.454) Offset error drift: 0.7 ppm/C typical (G = 0.454) temperature dependent error sources and to offer optimized Gain error drift: 0.5 ppm/C typical performance (see Figure 1). Housing this signal chain solution Low total power dissipation: 51.6 mW typical at 2 MSPS in a small, 7 mm 7 mm, 0.80 mm pitch, 49-ball CSP BGA Serial interface SPI-/QSPI-/MICROWIRE-/DSP-compatible enables compact form factor designs without sacrificing Versatile logic interface supply with 1.8 V, 2.5 V, 3 V, or 5 V performance and simplifies end system bill of materials management. This level of system integration makes the APPLICATIONS ADAQ4003 much less sensitive to printed circuit board (PCB) Automatic test equipment layout while still providing flexibility to adapt to a wide range of Machine automation signal levels. Process controls Medical instrumentation The serial peripheral interface (SPI)-compatible, serial user interface Digital control loops is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using a separate VIO supply. Specified operation of ADAQ4003 is from 40C FUNCTIONAL BLOCK DIAGRAM VS+ REF REF OUT VDD to +125C. 0.1F Table 1. Module Data Acquisition Solutions PD REF Type 500 kSPS 1000 kSPS 10F 2.2F 10k 16-Bit ADAQ7988 ADAQ7980 VCMO 10k OUT+ VIO 18-Bit ADAQ4003 1k 0.1F R1K 1k R1K1 1nF 1.1k 33 SDI IN SCK VCMO FDA ADC SDO IN+ 1.1k 33 1nF CNV R1K1+ 1k R1K+ 1k 0.1F ADAQ4003 OUT VCMO PD AMP VS MODE GND ADCIN+ ADCIN Figure 1. Rev. 0 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. Tel: 781.329.4700 2020 Analog Devices, Inc. All rights reserved. No 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 21657-001ADAQ4003 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Analog Inputs ............................................................................. 21 Applications ...................................................................................... 1 Ease of Drive Features ............................................................... 21 Functional Block Diagram .............................................................. 1 Voltage Reference Input ............................................................ 23 General Description ......................................................................... 1 Power Supply (Power Tree) ...................................................... 23 Revision History ............................................................................... 2 Digital Interface .......................................................................... 23 Specifications .................................................................................... 3 Register Read and Write Functionality ................................... 24 Timing Specifications .................................................................. 6 Status Word ................................................................................ 26 Absolute Maximum Ratings ........................................................... 8 CS Mode, 3-Wire Turbo Mode ................................................ 27 Thermal Resistance ...................................................................... 8 CS Mode, 3-Wire Without Busy Indicator............................. 28 Electrostatic Discharge (ESD) Ratings ...................................... 8 CS Mode, 3-Wire with Busy Indicator .................................... 29 ESD Caution.................................................................................. 8 CS Mode, 4-Wire Turbo Mode ................................................ 30 Pin Configuration and Function Descriptions ............................ 9 CS Mode, 4-Wire Without Busy Indicator............................. 31 Typical Performance Characteristics ........................................... 11 CS Mode, 4-Wire with Busy Indicator .................................... 32 Terminology .................................................................................... 17 Daisy-Chain Mode ..................................................................... 33 Theory of Operation ...................................................................... 18 Layout Guidelines ...................................................................... 34 Circuit Information ................................................................... 18 Outline Dimensions ....................................................................... 35 Transfer Functions ..................................................................... 18 Ordering Guide .......................................................................... 35 Applications Information .............................................................. 19 Typical Application Diagrams.................................................. 19 REVISION HISTORY 9/2020Revision 0: Initial Version Rev. 0 Page 2 of 35