link to page 1 link to page 1 link to page 1 link to page 1 link to page 3 link to page 4 link to page 7 link to page 9 link to page 9 link to page 9 link to page 10 link to page 11 link to page 16 link to page 17 link to page 17 link to page 18 link to page 18 link to page 19 link to page 19 link to page 20 link to page 21 link to page 22 link to page 23 link to page 24 link to page 24 link to page 25 link to page 27 link to page 28 link to page 29 link to page 30 link to page 31 link to page 32 link to page 33 link to page 34 link to page 35 link to page 35 link to page 36 link to page 36 AD4000/AD4004/AD4008Data SheetTABLE 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
