Datasheet

AD623 Data Sheet
Rev. G | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 4
Single Supply ................................................................................. 4
Dual Supplies ................................................................................ 6
Specifications Common to Dual and Single Supplies ............. 8
Absolute Maximum Ratings ............................................................ 9
ESD Caution .................................................................................. 9
Pin Configuration and Function Descriptions ........................... 10
Typical Performance Characteristics ........................................... 11
Theory of Operation ...................................................................... 23
Applications Information .............................................................. 24
Basic Connection ....................................................................... 24
Gain Selection ............................................................................. 24
Reference Terminal .................................................................... 24
Input and Output Offset Voltage Error ................................... 24
Input Protection ......................................................................... 25
RF Interference ........................................................................... 25
Grounding ................................................................................... 26
Input Differential and Common-Mode Range vs. Supply and
Gain .............................................................................................. 28
Additional Information ............................................................. 29
Evaluation Board ............................................................................ 30
General Description ................................................................... 30
Outline Dimensions ....................................................................... 31
Ordering Guide .......................................................................... 32
REVISION HISTORY
9/2020—Rev. F to Rev. G
Changed AD623A to AD623ANZ, AD623ARZ and AD623B to
AD623BNZ, AD623BRZ .............................................. Throughout
Changes to General Description Section ...................................... 1
Changes to Figure 5 Caption, Figure 6 Caption, and Figure 8
Caption ............................................................................................. 10
Changes to Figure 10 Caption, Figure 11, Figure 12, Figure 13,
and Figure 14 ................................................................................... 12
Changes to Figure 15 to Figure 20 ................................................ 13
Changes to Figure 21 to Figure 26 ................................................ 14
Changes to Figure 27 to Figure 32 ................................................ 15
Changes to Figure 33 to Figure 38 ................................................ 16
Changes to Figure 39 to Figure 40 ................................................ 17
Added Figure 41 to Figure 44; Renumbered Sequentially ........ 17
Added Figure 45 to Figure 50 ........................................................ 18
Added Figure 51 to Figure 56 ........................................................ 19
Added Figure 57 to Figure 62 ........................................................ 20
Added Figure 63 to Figure 66 ........................................................ 21
Deleted Single-Supply Data Acquisition System Section and
Figure 53; Renumbered Sequentially ........................................... 21
Added Figure 67 to Figure 69 ........................................................ 22
Change to Figure 70 ....................................................................... 23
Changes to Basic Connection Section and Reference Terminal
Section .............................................................................................. 24
Changes to RF Interference Section ............................................ 25
Change to Figure 77 ....................................................................... 26
Changes to Figure 79 and Output Buffering Section ................. 27
Changes to Input Differential and Common-Mode Range vs.
Supply and Gain Section ................................................................ 28
Changes to Ordering Guide .......................................................... 32
4/2018—Rev. E to Rev. F
Changes to Gain Error Parameter, Nonlinearity Parameter,
Offset Referred to the Input vs. Supply (PSR) Parameter, and
Output Swing Parameter, Table 2 .................................................... 3
Changes to Gain Error Parameter and Offset Referred to the
Input vs. Supply (PSR) Parameter, Table 3 ..................................... 5
Changes to Current Noise Parameter, Table 4 ............................... 7
Changes to Ordering Guide .......................................................... 26
6/2016—Rev. D to Rev. E
Changes to Features Section, General Description Section,
and Figure 1 ........................................................................................ 1
Deleted Connection Diagram Section ............................................ 1
Added Functional Block Diagram Section and Table 1;
Renumbered Sequentially ................................................................ 1
Changes to Single Supply Section ................................................... 3
Changes to Table 3 ............................................................................. 6
Changed Both Dual and Single Supplies Section to
Specifications Common to Dual and Single Supplies Section .... 7
Changes to Table 5 ............................................................................. 8
Added Pin Configuration and Function Descriptions Section,
Figure 2, and Table 6; Renumbered Sequentially .......................... 9
Changes to Figure 5 Caption, Figure 6 Caption, and
Figure 8 Caption ............................................................................. 10
Changes to Figure 17 Caption through Figure 20 Caption ...... 11
Changes to Figure 21 Caption through Figure 26 Caption ...... 12
Changes to Figure 27 Caption and Figure 28 Caption .............. 13
Changes to Theory of Operation Section.................................... 17
Changes to Basic Connection Section ......................................... 18
Changes to Input and Output Offset Voltage Error Section, and
Input Protection Section ................................................................ 19