AD7403

Data Sheet

Rev. B | Page 2 of 24

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Functional Block Diagram .............................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

AD7403 .......................................................................................... 3

AD7403-8 ...................................................................................... 4

Timing Specifications .................................................................. 5

Package Characteristics ............................................................... 6

Insulation and Safety Related Specifications ............................ 6

Regulatory Information............................................................... 6

DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 Insulation

Characteristics .............................................................................. 7

Absolute Maximum Ratings............................................................ 8

ESD Caution.................................................................................. 8

Pin Configurations and Function Descriptions ........................... 9

Typical Performance Characteristics ........................................... 10

Terminology .................................................................................... 14

Theory of Operation ...................................................................... 15

Circuit Information.................................................................... 15

Analog Input ............................................................................... 15

Differential Inputs ...................................................................... 16

Digital Output............................................................................. 16

Applications Information .............................................................. 17

Current Sensing Applications................................................... 17

Voltage Sensing Applications.................................................... 17

Input Filter................................................................................... 18

Digital Filter ................................................................................ 18

Interfacing to ADSP-CM4xx .................................................... 21

Power Supply Considerations................................................... 21

Grounding and Layout .............................................................. 21

Insulation Lifetime ..................................................................... 21

Outline Dimensions ....................................................................... 23

Ordering Guide .......................................................................... 24

REVISION HISTORY

5/15—Rev. A to Rev. B

Added AD7403-8................................................................Universal

Added Endnote 3, Table 1 ............................................................... 4

Added Table 2; Renumbered Sequentially .................................... 4

Added Figure 4.................................................................................. 7

Added Figure 6 and Table 11........................................................... 9

Added Figure 8................................................................................ 10

Added Figure 14 and Figure 18..................................................... 11

Added Figure 20.............................................................................. 12

Added Power Supply Considerations Section, Figure 41, and

Figure 42 .......................................................................................... 21

Added Figure 47, Outline Dimensions........................................ 23

Changes to Ordering Guide .......................................................... 24

11/14—Rev. 0 to Rev. A

Change to Figure 1 ............................................................................1

Changes to Regulatory Information Section and Table 5 ............5

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

Changes to Ordering Guide .......................................................... 20

4/14—Revision 0: Initial Version