Data Sheet

AD7682/AD7689

Rev. H | Page 3 of 35

9/2011—Rev. B to Rev. C

Changes to Internal Reference Section ........................................21

Changes to the External Reference and Internal Buffer

Section ..............................................................................................22

Changes to the External Reference/Temperature Sensor

Section ..............................................................................................22

Changes to Table 10, REF Bit Description...................................25

6/2009—Rev. A to Rev. B

Changes Table 6.................................................................................8

Changes to Figure 37 ......................................................................25

Changes to Figure 38 ......................................................................26

3/2009—Rev. 0 to Rev. A

Changes to Features Section, Applications Section, and

Figure 1 ...............................................................................................1

Added Table 2; Renumbered Sequentially.....................................3

Changes to Table 3 ............................................................................5

Changes to Table 4 ............................................................................6

Changes to Table 5 ............................................................................7

Deleted Endnote 2 in Table 6...........................................................8

Changes to Figure 4, Figure 5, and Table 7 ....................................9

Changes to Figure 6, Figure 9, and Figure 10 ..............................11

Changes to Figure 22 ......................................................................13

Changes to Overview Section and Converter Operation

Section ..............................................................................................15

Changes to Table 8 ..........................................................................16

Changes to Figure 26 and Figure 27 .............................................17

Changes to Bipolar Single Supply Section and Analog Inputs

Section ..............................................................................................18

Changes to Internal Reference/Temperature Sensor Section....20

Added Figure 31; Renumbered Sequentially...............................20

Changes to External Reference and Internal Buffer Section and

External Reference Section ............................................................21

Added Figure 32 and Figure 33.....................................................21

Changes to Power Supply Section.................................................22

Changes to Digital Interface Section, Reading/Writing After

Conversion, Any Speed Hosts Section, and Configuration

Register, CFG Section.....................................................................23

Changes to Table 10 ........................................................................24

Added General Timing Without a Busy Indicator Section and

Figure 37...........................................................................................25

Added General Timing With a Busy Indicator Section and

Figure 38...........................................................................................26

Added Channel Sequencer Section and Figure 39 .....................27

Changes to Read/Write Spanning Conversion Without a Busy

Indicator Section and Figure 41 ....................................................28

Changes to Read/Write Spanning Conversion with a Busy

Indicator and Figure 43 ..................................................................29

Changes to Evaluating AD7682/AD7689 Performance

Section ..............................................................................................30

Added Exposed Pad Notation to Outline Dimensions..............31

Changes to Ordering Guide...........................................................31

5/2008—Revision 0: Initial Version