AD7734* PRODUCT PAGE QUICK LINKS Last Content Update: 02/23/2017COMPARABLE PARTSTOOLS AND SIMULATIONS View a parametric search of comparable parts. • Sigma-Delta ADC Tutorial EVALUATION KITSREFERENCE MATERIALS • AD7734 Evaluation Board Technical Articles • Delta-Sigma Rocks RF, As ADC Designers Jump On Jitter DOCUMENTATION • MS-2210: Designing Power Supplies for High Speed ADC Application Notes • Part 1: Circuit Suggestions Using Features and • AN-202: An IC Amplifier User’s Guide to Decoupling, Functionality of New Sigma-Delta ADCs Grounding, and Making Things Go Right for a Change • Part 2: Circuit Suggestions Using Features and • AN-283: Sigma-Delta ADCs and DACs Functionality of New Sigma-Delta ADCs • AN-311: How to Reliably Protect CMOS Circuits Against Power Supply Overvoltaging DESIGN RESOURCES • AN-388: Using Sigma-Delta Converters-Part 1 • AD7734 Material Declaration • AN-389: Using Sigma-Delta Converters-Part 2 • PCN-PDN Information • AN-397: Electrically Induced Damage to Standard Linear • Quality And Reliability Integrated Circuits: • Symbols and Footprints • AN-607: Selecting a Low Bandwidth (<15 kSPS) Sigma- Delta ADC DISCUSSIONS • AN-615: Peak-to-Peak Resolution Versus Effective View all AD7734 EngineerZone Discussions. Resolution • AN-626: Using the AD7732/AD7734/AD7738/AD7739 SAMPLE AND BUY Checksum Register • AN-663: AD7732/AD7734/AD7738/AD7739 Calibration Visit the product page to see pricing options. Registers • AN-664: AD7732/AD7734/AD7738/AD7739 in Low Power TECHNICAL SUPPORT Applications Submit a technical question or find your regional support Data Sheet number. • AD7734: 4-Channel, ±10 V Input Range, High Throughput, 24-Bit Sigma Delta ADC Data Sheet DOCUMENT FEEDBACK Submit feedback for this data sheet. SOFTWARE AND SYSTEMS REQUIREMENTS • AD7734 - Microcontroller No-OS Driver • AD7732/4/8/9 Evaluation Software 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 FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS Timing Diagrams ABSOLUTE MAXIMUM RATINGS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS OUTPUT NOISE AND RESOLUTION SPECIFICATION CHOPPING ENABLED CHOPPING DISABLED PIN CONFIGURATION AND FUNCTION DESCRIPTIONS REGISTER DESCRIPTION REGISTER ACCESS COMMUNICATIONS REGISTER I/O PORT REGISTER REVISION REGISTER TEST REGISTER ADC STATUS REGISTER CHECKSUM REGISTER ADC ZERO-SCALE CALIBRATION REGISTER ADC FULL-SCALE REGISTER CHANNEL DATA REGISTERS CHANNEL ZERO-SCALE CALIBRATION REGISTERS CHANNEL FULL-SCALE CALIBRATION REGISTERS CHANNEL STATUS REGISTERS CHANNEL SETUP REGISTERS CHANNEL CONVERSION TIME REGISTERS MODE REGISTER DIGITAL INTERFACE DESCRIPTION HARDWARE RESET ACCESS THE AD7734 REGISTERS SINGLE CONVERSION AND READING DATA DUMP MODE CONTINUOUS CONVERSION MODE CONTINUOUS READ (CONTINUOUS CONVERSION) MODE CIRCUIT DESCRIPTION ANALOG FRONT END ANALOG INPUT’S EXTENDED VOLTAGE RANGE CHOPPING MULTIPLEXER, CONVERSION, AND DATA OUTPUT TIMING Σ-Δ ADC FREQUENCY RESPONSE VOLTAGE REFERENCE INPUTS REFERENCE DETECT I/O PORT CALIBRATION ADC ZERO-SCALE SELF-CALIBRATION PER CHANNEL SYSTEM CALIBRATION OUTLINE DIMENSIONS ORDERING GUIDE
