Datasheet AD7682, AD7689 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | 16-Bit, 8-Channel,250 kSPS PulSAR ADC |
| Seiten / Seite | 35 / 2 — AD7682/AD7689. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY … |
| Revision | H |
| Dateiformat / Größe | PDF / 754 Kb |
| Dokumentensprache | Englisch |
AD7682/AD7689. Data Sheet. TABLE OF CONTENTS. REVISION HISTORY 8/2017—Rev. G to Rev. H. 1/2015—Rev. D to Rev. E
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AD7682/AD7689 Data Sheet TABLE OF CONTENTS
Features .. 1 Power Supply ... 25 Applications ... 1 Supplying the ADC from the Reference .. 25 Functional Block Diagram .. 1 Digital Interface .. 26 General Description ... 1 Reading/Writing During Conversion, Fast Hosts .. 26 Revision History ... 2 Reading/Writing After Conversion, Any Speed Hosts .. 26 Specifications ... 4 Reading/Writing Spanning Conversion, Any Speed Host .. 26 Timing Specifications .. 7 Configuration Register, CFG .. 26 Absolute Maximum Ratings .. 9 General Timing Without a Busy Indicator ... 28 ESD Caution .. 9 General Timing with a Busy Indicator .. 29 Pin Configurations and Function Descriptions ... 10 Channel Sequencer .. 30 Typical Performance Characteristics ... 14 Read/Write Spanning Conversion Without a Busy Terminology .. 17 Indicator .. 31 Theory of Operation .. 18 Read/Write Spanning Conversion with a Busy Indicator ... 32 Overview .. 18 Applications Information .. 33 Converter Operation .. 18 Layout .. 33 Transfer Functions.. 19 Evaluating the AD7682/AD7689 Performance .. 33 Typical Connection Diagrams .. 20 Outline Dimensions ... 34 Analog Inputs .. 21 Ordering Guide .. 35 Driver Amplifier Choice .. 23 Voltage Reference Output/Input .. 23
REVISION HISTORY 8/2017—Rev. G to Rev. H 1/2015—Rev. D to Rev. E
Changed CP-20-8 to CP-20-10 .. Throughout Added WLCSP (Throughout) ... 1 Change to Product Title ... 1 Added WLCSP Signal-to-Noise and SINAD Parameters; Updated Outline Dimensions ... 34 Table 2 ... 3 Changes to Ordering Guide .. 35 Changed θJA Thermal Impedance (LFCSP) from 47.6°C/W to 48°C/W ... 9
6/2017—Rev. F to Rev. G
Added Figure 6, Figure 7, and Table 8 ... 12 Changed CP-20-10 to CP-20-8 .. Throughout Changes to Layout Section .. 33 Changes to Table 11 .. 27 Added Figure 47; Outline Dimensions .. 34 Updated Outline Dimensions ... 34 Changes to Ordering Guide .. 35 Changes to Ordering Guide .. 35
4/2012—Rev. C to Rev. D 4/2016—Rev. E to Rev. F
Changes to Figure 27 .. 18 Changed ADA4841-x to ADA4805-1/ADA4807-1, Table 1 ... 1 Changed Internal Reference Section to Internal Added Endnote 6, Table 3; Renumbered Sequential y .. 6 Reference/Temperature Sensor Section ... 21 Changes to Figure 28 and Figure 29 ... 20 Changes to Internal Reference/Temperature Sensor Section ... 21 Changes to Table 10 .. 23 Changed External Reference/Temperature Sensor Section to Changes to External Reference Section and the Reference External Reference Section ... 22 Decoupling Section .. 24 Changes to External Reference and Internal Buffer Section and Changes to the Supplying the ADC from the Reference Section .. 25 External Reference Section ... 22 Changes to Ordering Guide .. 35 Changes to REF Bit, Function Column, Table 10 .. 25 Updated Outline Dimensions ... 32 Rev. H | Page 2 of 35 Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Overview Converter Operation Transfer Functions Typical Connection Diagrams Unipolar or Bipolar Bipolar Single Supply Analog Inputs Input Structure Selectable Low-Pass Filter Input Configurations Sequencer Source Resistance Driver Amplifier Choice Voltage Reference Output/Input Internal Reference/Temperature Sensor External Reference and Internal Buffer External Reference Reference Decoupling Power Supply Supplying the ADC from the Reference Digital Interface Reading/Writing During Conversion, Fast Hosts Reading/Writing After Conversion, Any Speed Hosts Reading/Writing Spanning Conversion, Any Speed Host Configuration Register, CFG General Timing Without a Busy Indicator General Timing with a Busy Indicator Channel Sequencer Examples Read/Write Spanning Conversion Without a Busy Indicator Read/Write Spanning Conversion with a Busy Indicator Applications Information Layout Evaluating the AD7682/AD7689 Performance Outline Dimensions Ordering Guide
AD7682/AD7689 Data Sheet TABLE OF CONTENTS
Features .. 1 Power Supply ... 25 Applications ... 1 Supplying the ADC from the Reference .. 25 Functional Block Diagram .. 1 Digital Interface .. 26 General Description ... 1 Reading/Writing During Conversion, Fast Hosts .. 26 Revision History ... 2 Reading/Writing After Conversion, Any Speed Hosts .. 26 Specifications ... 4 Reading/Writing Spanning Conversion, Any Speed Host .. 26 Timing Specifications .. 7 Configuration Register, CFG .. 26 Absolute Maximum Ratings .. 9 General Timing Without a Busy Indicator ... 28 ESD Caution .. 9 General Timing with a Busy Indicator .. 29 Pin Configurations and Function Descriptions ... 10 Channel Sequencer .. 30 Typical Performance Characteristics ... 14 Read/Write Spanning Conversion Without a Busy Terminology .. 17 Indicator .. 31 Theory of Operation .. 18 Read/Write Spanning Conversion with a Busy Indicator ... 32 Overview .. 18 Applications Information .. 33 Converter Operation .. 18 Layout .. 33 Transfer Functions.. 19 Evaluating the AD7682/AD7689 Performance .. 33 Typical Connection Diagrams .. 20 Outline Dimensions ... 34 Analog Inputs .. 21 Ordering Guide .. 35 Driver Amplifier Choice .. 23 Voltage Reference Output/Input .. 23
REVISION HISTORY 8/2017—Rev. G to Rev. H 1/2015—Rev. D to Rev. E
Changed CP-20-8 to CP-20-10 .. Throughout Added WLCSP (Throughout) ... 1 Change to Product Title ... 1 Added WLCSP Signal-to-Noise and SINAD Parameters; Updated Outline Dimensions ... 34 Table 2 ... 3 Changes to Ordering Guide .. 35 Changed θJA Thermal Impedance (LFCSP) from 47.6°C/W to 48°C/W ... 9
6/2017—Rev. F to Rev. G
Added Figure 6, Figure 7, and Table 8 ... 12 Changed CP-20-10 to CP-20-8 .. Throughout Changes to Layout Section .. 33 Changes to Table 11 .. 27 Added Figure 47; Outline Dimensions .. 34 Updated Outline Dimensions ... 34 Changes to Ordering Guide .. 35 Changes to Ordering Guide .. 35
4/2012—Rev. C to Rev. D 4/2016—Rev. E to Rev. F
Changes to Figure 27 .. 18 Changed ADA4841-x to ADA4805-1/ADA4807-1, Table 1 ... 1 Changed Internal Reference Section to Internal Added Endnote 6, Table 3; Renumbered Sequential y .. 6 Reference/Temperature Sensor Section ... 21 Changes to Figure 28 and Figure 29 ... 20 Changes to Internal Reference/Temperature Sensor Section ... 21 Changes to Table 10 .. 23 Changed External Reference/Temperature Sensor Section to Changes to External Reference Section and the Reference External Reference Section ... 22 Decoupling Section .. 24 Changes to External Reference and Internal Buffer Section and Changes to the Supplying the ADC from the Reference Section .. 25 External Reference Section ... 22 Changes to Ordering Guide .. 35 Changes to REF Bit, Function Column, Table 10 .. 25 Updated Outline Dimensions ... 32 Rev. H | Page 2 of 35 Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Terminology Theory of Operation Overview Converter Operation Transfer Functions Typical Connection Diagrams Unipolar or Bipolar Bipolar Single Supply Analog Inputs Input Structure Selectable Low-Pass Filter Input Configurations Sequencer Source Resistance Driver Amplifier Choice Voltage Reference Output/Input Internal Reference/Temperature Sensor External Reference and Internal Buffer External Reference Reference Decoupling Power Supply Supplying the ADC from the Reference Digital Interface Reading/Writing During Conversion, Fast Hosts Reading/Writing After Conversion, Any Speed Hosts Reading/Writing Spanning Conversion, Any Speed Host Configuration Register, CFG General Timing Without a Busy Indicator General Timing with a Busy Indicator Channel Sequencer Examples Read/Write Spanning Conversion Without a Busy Indicator Read/Write Spanning Conversion with a Busy Indicator Applications Information Layout Evaluating the AD7682/AD7689 Performance Outline Dimensions Ordering Guide