Datasheet AD4020 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 20-Bit, 1.8 MSPS, Precision SAR, Differential ADC |
| 页数 / 页 | 37 / 3 — AD4020. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 7/2017— Rev. 0 to … |
| 修订版 | A |
| 文件格式/大小 | PDF / 802 Kb |
| 文件语言 | 英语 |
AD4020. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 7/2017— Rev. 0 to Rev. A. 7/2017—Revision 0: Initial Version
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AD4020 Data Sheet TABLE OF CONTENTS
Features .. 1 Analog Inputs ... 19 Applications ... 1 Driver Amplifier Choice ... 20 General Description ... 1 Ease of Drive Features ... 22 Functional Block Diagram .. 1 Voltage Reference Input .. 23 Revision History ... 2 Power Supply ... 24 Specifications ... 3 Digital Interface .. 24 Timing Specifications .. 6 Register Read/Write Functionality... 25 Absolute Maximum Ratings .. 8 Status Word ... 27 Thermal Resistance .. 8 CS Mode, 3-Wire Turbo Mode ... 28 ESD Caution .. 8 CS Mode, 3-Wire Without the Busy Indicator ... 29 Pin Configurations and Function Descriptions ... 9 CS Mode, 3-Wire with the Busy Indicator .. 30 Typical Performance Characteristics ... 10 CS Mode, 4-Wire Turbo Mode ... 31 Terminology .. 14 CS Mode, 4-Wire Without the Busy Indicator ... 32 Theory of Operation .. 15 CS Mode, 4-Wire with the Busy Indicator .. 33 Circuit Information .. 15 Daisy-Chain Mode ... 34 Converter Operation .. 15 Layout Guidelines... 35 Transfer Functions.. 16 Evaluating the AD4020 Performance .. 35 Applications Information .. 17 Outline Dimensions ... 36 Typical Application Diagrams .. 17 Ordering Guide .. 36
REVISION HISTORY 7/2017— Rev. 0 to Rev. A
Change to Integral Nonlinearity Error (INL) Parameter, Table 1 .. 3
7/2017—Revision 0: Initial Version
Rev. A | 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 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
AD4020 Data Sheet TABLE OF CONTENTS
Features .. 1 Analog Inputs ... 19 Applications ... 1 Driver Amplifier Choice ... 20 General Description ... 1 Ease of Drive Features ... 22 Functional Block Diagram .. 1 Voltage Reference Input .. 23 Revision History ... 2 Power Supply ... 24 Specifications ... 3 Digital Interface .. 24 Timing Specifications .. 6 Register Read/Write Functionality... 25 Absolute Maximum Ratings .. 8 Status Word ... 27 Thermal Resistance .. 8 CS Mode, 3-Wire Turbo Mode ... 28 ESD Caution .. 8 CS Mode, 3-Wire Without the Busy Indicator ... 29 Pin Configurations and Function Descriptions ... 9 CS Mode, 3-Wire with the Busy Indicator .. 30 Typical Performance Characteristics ... 10 CS Mode, 4-Wire Turbo Mode ... 31 Terminology .. 14 CS Mode, 4-Wire Without the Busy Indicator ... 32 Theory of Operation .. 15 CS Mode, 4-Wire with the Busy Indicator .. 33 Circuit Information .. 15 Daisy-Chain Mode ... 34 Converter Operation .. 15 Layout Guidelines... 35 Transfer Functions.. 16 Evaluating the AD4020 Performance .. 35 Applications Information .. 17 Outline Dimensions ... 36 Typical Application Diagrams .. 17 Ordering Guide .. 36
REVISION HISTORY 7/2017— Rev. 0 to Rev. A
Change to Integral Nonlinearity Error (INL) Parameter, Table 1 .. 3
7/2017—Revision 0: Initial Version
Rev. A | 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 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