Datasheet AD4000, AD4004, AD4008 (Analog Devices) - 2

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AD4000/ AD4004/ AD4008 Data Sheet TABLE OF CONTENTS
Features .. 1 Analog Inputs ... 20 Applications ... 1 Driver Amplifier Choice ... 21 General Description ... 1 Ease of Drive Features ... 22 Functional Block Diagram .. 1 Voltage Reference Input .. 23 Revision History ... 3 Power Supply ... 24 Specifications ... 4 Digital Interface .. 24 Timing Specifications .. 7 Register Read/Write Functionality... 25 Absolute Maximum Ratings .. 9 Status Word ... 27 Thermal Resistance .. 9 CS Mode, 3-Wire Turbo Mode ... 28 ESD Caution .. 9 CS Mode, 3-Wire Without Busy Indicator ... 29 Pin Configurations and Function Descriptions ... 10 CS Mode, 3-Wire with Busy Indicator .. 30 Typical Performance Characteristics ... 11 CS Mode, 4-Wire Turbo Mode ... 31 Terminology .. 16 CS Mode, 4-Wire Without Busy Indicator ... 32 Theory of Operation .. 17 CS Mode, 4-Wire with Busy Indicator .. 33 Circuit Information .. 17 Daisy-Chain Mode ... 34 Converter Operation .. 18 Layout Guidelines... 35 Transfer Functions.. 18 Evaluating the AD4000/AD4004/AD4008 Performance .. 35 Applications Information .. 19 Outline Dimensions ... 36 Typical Application Diagrams .. 19 Ordering Guide .. 36 Rev. C | Page 2 of 36 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 Switched Capacitor Input RC Filter Values DRIVER AMPLIFIER CHOICE 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 CSB MODE, 3-WIRE TURBO MODE CSB MODE, 3-WIRE WITHOUT BUSY INDICATOR CSB MODE, 3-WIRE WITH BUSY INDICATOR CSB MODE, 4-WIRE TURBO MODE CSB MODE, 4-WIRE WITHOUT BUSY INDICATOR CSB MODE, 4-WIRE WITH BUSY INDICATOR DAISY-CHAIN MODE LAYOUT GUIDELINES EVALUATING THE AD4000/AD4004/AD4008 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE