Datasheet AD7709 (Analog Devices) - 2

AD7709* PRODUCT PAGE QUICK LINKS Last Content Update: 02/23/2017 COMPARABLE PARTS TOOLS AND SIMULATIONS
View a parametric search of comparable parts. • Sigma-Delta ADC Tutorial
EVALUATION KITS REFERENCE MATERIALS
• AD7709 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 • AD7709 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-608: Input Buffers on Sigma-Delta ADCs View all AD7709 EngineerZone Discussions. • AN-609: Chopping on Sigma-Delta ADCs • AN-610: The PGA on Sigma-Delta ADCs
SAMPLE AND BUY
• AN-611: 50 Hz/60Hz Rejection on Sigma-Delta ADCs Visit the product page to see pricing options. • AN-615: Peak-to-Peak Resolution Versus Effective Resolution
TECHNICAL SUPPORT Data Sheet
Submit a technical question or find your regional support • AD7709: 16-Bit Sigma Delta ADC with Switchable Current number. Sources Data Sheet
DOCUMENT FEEDBACK
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Document Outline FEATURES INTERFACE POWER ON-CHIP FUNCTIONS APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS SPECIFICATIONS TIMING CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDERING GUIDE PIN FUNCTION DESCRIPTIONS Typical Performance Characteristics ADC CIRCUIT INFORMATION Overview Sigma-Delta ADC NOISE PERFORMANCE ON-CHIP REGISTERS Communications Register (A1, A0 = 0, 0) Status Register (A1, A0 = 0, 0; Power-On-Reset = 00H) Configuration Register (A1, A0 = 0, 1; Power-On-Reset = 000007H) Filter Register (A1, A0 = 1, 0; Power-On-Reset = 45h) ADC Data Result Register (A1, A0 = 1, 1; Power-On-Reset = 0000h CONFIGURING THE AD7709 DIGITAL INTERFACE MICROCOMPUTER/MICROPROCESSOR INTERFACING AD7709-to-68HC11 Interface AD7709-to-8051 Interface AD7709-to-ADSP-2103/ADSP-2105 Interface CIRCUIT DESCRIPTION Analog Input Channels Programmable Gain Amplifier Bipolar/Unipolar Configuration Data Output Coding Excitation Currents Crystal Oscillator Reference Input Reset Input Power-Down Mode Grounding and Layout APPLICATIONS Pressure Measurement Temperature Measurement 3-Wire RTD Configurations Smart Transmitters OUTLINE DIMENSIONS Revision History