Data Sheet ADAQ4001 16-Bit, 2 MSPS, Module Data Acquisition Solution FEATURES GENERAL DESCRIPTION Improved design journey The ADAQ4001 is a Module precision data acquisition (DAQ), signal chain solution that reduces the development cycle of a preci- Fully differential ADC driver with selectable input range sion measurement system by transferring the signal chain design Input ranges with 5 V V : 10 V, 5 V, or 2.5 V REF challenge of component selection, optimization, and layout from the Essential passive components included designer to the device. 0.005% iPassives matched resistor array Using system-in-package (SIP) technology, the ADAQ4001 reduces Wide input common-mode voltage range end system component count by combining multiple common signal High common-mode rejection ratio processing and conditioning blocks into a single device. These Single-ended to differential conversion blocks include a high resolution 16-bit, 2 MSPS successive approx- Increased signal chain density imation register (SAR), analog-to-digital converter (ADC), a low Small, 7 mm 7 mm, 0.80 mm pitch, 49-ball CSP BGA noise, fully differential ADC driver amplifier (FDA), and a stable 4 footprint reduction vs. discrete solution reference buffer. On-board reference buffer with V generation CM Using Analog Devices, Inc., iPassives technology, the ADAQ4001 High performance also incorporates crucial passive components with superior match- Throughput: 2 MSPS, no pipeline delay ing and drift characteristics to minimize temperature dependent error sources and to offer optimized performance (see Figure 1). Guaranteed 16-bit no missing codes Housing this signal chain solution in a small, 7 mm 7 mm, 0.80 INL: 4.6 ppm typical, 11.9 ppm guaranteed mm pitch, 49-ball chip scale package ball grid array (CSP BGA) SINAD: 95.6 dB typical (G = 0.454) enables compact form factor designs without sacrificing perform- Offset error drift: 0.7 ppm/C typical (G = 0.454) ance and simplifies end system bill of materials management. Gain error drift: 0.5 ppm/C typical This level of system integration makes the ADAQ4001 much less Low total power dissipation: 51.6 mW typical at 2 MSPS sensitive to printed circuit board (PCB) layout while still providing flexibility to adapt to a wide range of signal levels. SPI-/QSPI -/MICROWIRE -/DSP-compatible serial interface Versatile logic interface supply with 1.8 V, 2.5 V, 3 V, or 5 V The serial peripheral interface (SPI)-compatible, serial user inter- face is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using a APPLICATIONS separate VIO supply. The specified operation of theADAQ4001 is from 40C to +125C. Automatic test equipment Machine automation Table 1. Module Data Acquisition Solutions Process controls Type 500 kSPS 1000 kSPS Medical instrumentation 16-Bit ADAQ7988 ADAQ7980, ADAQ4001 18-bit ADAQ4003 Digital control loops FUNCTIONAL BLOCK DIAGRAM Figure 1. Rev. 0 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 ADAQ4001 TABLE OF CONTENTS Features................................................................ 1 Ease of Drive Features.....................................24 Applications........................................................... 1 Voltage Reference Input ..................................26 Functional Block Diagram......................................1 Power Supply (Power Tree)............................. 26 General Description...............................................1 Power-Down Mode...........................................26 Specifications........................................................ 3 Digital Interface................................................ 26 Timing Specifications......................................... 7 Register Read and Write Functionality.............27 Absolute Maximum Ratings.................................10 Status Word......................................................29 Thermal Resistance......................................... 10 3-Wire CS Turbo Mode.................................... 30 Electrostatic Discharge (ESD) Ratings.............10 3-Wire CS Mode Without the Busy Indicator....31 ESD Caution.....................................................10 3-Wire CS Mode with the Busy Indicator..........32 Pin Configuration and Function Descriptions.......11 4-Wire CS Turbo Mode.................................... 33 Typical Performance Characteristics...................13 4-Wire CS Mode Without the Busy Indicator....34 Terminology......................................................... 19 4-Wire CS Mode with the Busy Indicator..........35 Theory of Operation.............................................21 Daisy-Chain Mode ...........................................36 Circuit Information ........................................... 21 Layout Guidelines.............................................37 Transfer Functions........................................... 21 Outline Dimensions............................................. 38 Applications Information...................................... 22 Ordering Guide.................................................38 Typical Application Diagrams........................... 22 Evaluation Boards............................................ 38 Analog Inputs................................................... 24 REVISION HISTORY 5/2021Revision 0: Initial Version analog.com Rev. 0 2 of 38