
AD628 
TABLE OF CONTENTS 
Features..............................................................................................1
Rev. F | Page 2 of 20 
Applications.......................................................................................1
General Description.........................................................................1
Functional Block Diagram..............................................................1
Revision History...............................................................................2
Specifications.....................................................................................3
Absolute Maximum Ratings............................................................7
Thermal Characteristics..............................................................7
ESD Caution..................................................................................7
Pin Configuration and Function Descriptions.............................8
Typical Performance Characteristics.............................................9
Test Circuits.....................................................................................13
Theory of Operation...................................................................... 14
Applications..................................................................................... 15
Gain Adjustment........................................................................ 15
Input Voltage Range................................................................... 15
Voltage Level Conversion.......................................................... 16
Current Loop Receiver .............................................................. 17
Monitoring Battery Voltages..................................................... 17
Filter Capacitor Values............................................................... 18
Kelvin Connection..................................................................... 18
Outline Dimensions....................................................................... 19
Ordering Guide .......................................................................... 19
REVISION HISTORY
3/06—Rev. E to Rev. F 
Changes to Table 1............................................................................ 3 
Changes to Figure 3.......................................................................... 7 
Replaced Voltage Level Conversion Section...............................16 
Changes to Figure 32 and Figure 33.............................................17 
Updated Outline Dimensions.......................................................19 
Changes to Ordering Guide..........................................................19 
5/05—Rev. D to Rev. E 
Changes to Table 1...........................................................................3 
Changes to Table 2...........................................................................5 
Changes to Figure 33.....................................................................18 
3/05—Rev. C to Rev. D 
Updated Format................................................................ Universal 
Changes to Table 1...........................................................................3 
Changes to Table 2...........................................................................5 
4/04—Rev. B to Rev. C 
Updated Format................................................................ Universal 
Changes to Specifications...............................................................3 
Changes to Absolute Maximum Ratings......................................7 
Changes to Figure 3.........................................................................7 
Changes to Figure 26.....................................................................13 
Changes to Figure 27.....................................................................13 
Changes to Theory of Operation.................................................14 
Changes to Figure 29.....................................................................14 
Changes to Table 5.........................................................................15 
Changes to Gain Adjustment Section.........................................15 
Added the Input Voltage Range Section.....................................15 
Added Figure 30 ............................................................................15 
Added Figure 31 ............................................................................15 
Changes to Voltage Level Conversion Section..........................16 
Changes to Figure 32.....................................................................16 
Changes to Table 6.........................................................................16 
Changes to Figure 33 and Figure 34............................................17 
Changes to Figure 35.....................................................................18 
Changes to Kelvin Connection Section......................................18 
6/03—Rev. A to Rev. B 
Changes to General Description...................................................1 
Changes to Specifications...............................................................2 
Changes to Ordering Guide...........................................................4 
Changes to TPCs 4, 5, and 6 ..........................................................5 
Changes to TPC 9............................................................................6 
Updated Outline Dimensions......................................................14 
1/03—Rev. 0 to Rev. A 
Change to Ordering Guide.............................................................4 
11/02—Rev. 0: Initial Version