AD4020* PRODUCT PAGE QUICK LINKS Last Content Update: 08/23/2017COMPARABLE PARTSREFERENCE DESIGNS View a parametric search of comparable parts. • CN0385 EVALUATION KITSDESIGN RESOURCES • Evaluation Board for the AD4000 Series 16-/18-/20-Bit • AD4020 Material Declaration Precision SAR ADCs • PCN-PDN Information • Quality And Reliability DOCUMENTATION • Symbols and Footprints Data Sheet • AD4020: 20-Bit, 1.8 MSPS, Precision SAR, Differential ADC DISCUSSIONS Data Sheet View all AD4020 EngineerZone Discussions. User Guides • UG-1042: Evaluation Board for the AD4000 Series 16-/18- SAMPLE AND BUY Bit Precision SAR ADCs Visit the product page to see pricing options. SOFTWARE AND SYSTEMS REQUIREMENTSTECHNICAL SUPPORT • AD4000 Series FPGA Device Driver Submit a technical question or find your regional support number. TOOLS AND SIMULATIONS • AD4000 Series IBIS Models DOCUMENT FEEDBACK Submit feedback for this data sheet. This page is dynamically generated by Analog Devices, Inc., and inserted into this data sheet. A dynamic change to the content on this page will not trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently modified. Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION TRANSFER FUNCTIONS APPLICATIONS INFORMATION TYPICAL APPLICATION DIAGRAMS ANALOG INPUTS Input Overvoltage Clamp Circuit Differential Input Considerations Switched Capacitor Input RC Filter Values DRIVER AMPLIFIER CHOICE Single to Differential Driver High Frequency Input Signals Multiplexed Applications EASE OF DRIVE FEATURES Input Span Compression High-Z Mode Long Acquisition Phase VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE REGISTER READ/WRITE FUNCTIONALITY STATUS WORD /CS MODE, 3-WIRE TURBO MODE /CS MODE, 3-WIRE WITHOUT THE BUSY INDICATOR /CS MODE, 3-WIRE WITH THE BUSY INDICATOR /CS MODE, 4-WIRE TURBO MODE /CS MODE, 4-WIRE WITHOUT THE BUSY INDICATOR /CS MODE, 4-WIRE WITH THE BUSY INDICATOR DAISY-CHAIN MODE LAYOUT GUIDELINES EVALUATING THE AD4020 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE