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AD7982 Datasheet(PDF) 3 Page - Analog Devices

Part No. AD7982
Description  18-Bit, 1 MSPS PulSAR 7 mW ADC in MSOP/LFCSP
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD7982 Datasheet(HTML) 3 Page - Analog Devices

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AD7982
Data Sheet
Rev. D | Page 2 of 25
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Specifications .................................................................. 5
Absolute Maximum Ratings............................................................ 7
ESD Caution.................................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ............................................. 9
Terminology .................................................................................... 12
Theory of Operation ...................................................................... 13
Circuit Information.................................................................... 13
Converter Operation.................................................................. 13
Typical Connection Diagram ................................................... 14
Analog Inputs.............................................................................. 15
Driver Amplifier Choice ........................................................... 15
Single-Ended to Differential Driver......................................... 16
Voltage Reference Input ............................................................ 16
Power Supply............................................................................... 16
Digital Interface.......................................................................... 17
CS Mode, 3-Wire Without Busy Indicator ............................. 18
CS Mode, 3-Wire with Busy Indicator .................................... 19
CS Mode, 4-Wire Without Busy Indicator ............................. 20
CS Mode, 4-Wire with Busy Indicator .................................... 21
Chain Mode Without Busy Indicator ...................................... 22
Chain Mode with Busy Indicator ............................................. 23
Applications Information .............................................................. 24
Layout .......................................................................................... 24
Evaluating the Performance of the AD7982............................ 24
Outline Dimensions ....................................................................... 25
Ordering Guide .......................................................................... 25
REVISION HISTORY
1/2017—Rev. C to Rev. D
Deleted QFN .................................................................. Throughout
Changes to Features Section, Figure 1, and Table 1 ..................... 1
Changed to VIO = 2.3 V to 5.5 V to VIO = 1.71 V to 5.5 V....... 3
Changes to Table 2............................................................................ 3
Deleted VIO Range Parameter, Table 3 ......................................... 4
Changed to VIO = 2.3 V to 5.5 V to VIO = 1.71 V to 5.5 V....... 4
Changes to VIO Parameter, Table 3 ............................................... 4
Changes to Table 4............................................................................ 5
Added Table 5; Renumbered Sequentially .................................... 6
Changes to Figure 5 and Table 7..................................................... 8
Moved Typical Performance Characteristics Section .................. 9
Changes to Figure 9.......................................................................... 9
Changes to Figure 23...................................................................... 14
Changes to Analog Inputs Section and Table 9 .......................... 15
Change to Single-Ended to Differential Driver Section Title... 16
Changes to Power Supply Section ................................................ 16
Changes to Figure 30...................................................................... 18
Changes to Figure 32...................................................................... 19
Changes to Figure 34...................................................................... 20
Changes to Figure 36...................................................................... 21
Changes to Chain Mode with Busy Indicator............................. 23
Changes to Applications Information Section............................ 24
Changes to Ordering Guide .......................................................... 25
6/2014—Rev. B to Rev. C
Added Patent Footnote .....................................................................1
7/2013—Rev. A to Rev. B
Added Low Power Dissipation of 4 mW at 1 MSPS (VDD only)
to Features Section ............................................................................1
Changes to Power Dissipation; Table 3...........................................4
Added EPAD Notation to Figure 5 and Table 6 ............................7
Updated Outline Dimensions....................................................... 24
Changes to Ordering Guide .......................................................... 24
10/2007—Rev. 0 to Rev. A
Changes to Table 1 and Layout........................................................1
Changes to Table 2.............................................................................3
Changes to Layout .............................................................................5
Changes to Layout .............................................................................6
Changes to Figure 5...........................................................................7
Changes to Figure 18 and Figure 20............................................. 11
Changes to Figure 23...................................................................... 13
Changers to Figure 26 .................................................................... 15
Changes to Digital Interface Section ........................................... 16
Changes to Figure 38...................................................................... 21
Changes to Figure 40...................................................................... 22
Updated Outline Dimensions....................................................... 24
Changes to Ordering Guide .......................................................... 24
3/2007—Revision 0: Initial Version


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