AD7401A

Data Sheet

Rev. D | Page 2 of 20

TABLE OF CONTENTS

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

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

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

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

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

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

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

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 Configuration and Function Descriptions............................. 9

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

Terminology .................................................................................... 13

Theory of Operation ...................................................................... 14

Circuit Information.................................................................... 14

Analog Input ............................................................................... 14

Differential Inputs...................................................................... 15

Current Sensing Applications................................................... 15

Voltage Sensing Applications.................................................... 15

Digital Filter ................................................................................ 16

Applications Information .............................................................. 18

Grounding and Layout .............................................................. 18

Evaluating the AD7401A Performance................................... 18

Insulation Lifetime..................................................................... 18

Outline Dimensions....................................................................... 19

Ordering Guide .......................................................................... 19

Automotive Product................................................................... 19

REVISION HISTORY

1/2018—Rev. C to Rev. D

Changes to Features and General Description ............................. 1

Change to Power Dissipation Parameter, Table 1......................... 4

Changes to Table 3 and Table 4....................................................... 6

Changes to Absolute Maximum Rating Section........................... 8

Changes to Table 8............................................................................ 9

Changes to Terminology Section.................................................. 13

Changes to Ordering Guide .......................................................... 19

Added Automotive Product Section ............................................ 19

7/2011—Rev. B to Rev. C

Changes to Minimum External Air Gap (Clearance) Parameter,

Table 3 and Minimum External Tracking (Creepage) Parameter,

Table 3 ................................................................................................ 6

Changes to Figure 5; Pin 1 Description, Table 8; and Pin 7

Description, Table 8.......................................................................... 9

3/2011—Rev. A to Rev. B

Change to General Description Section........................................ 1

Changes to Table 1............................................................................ 3

1/2011—Rev. 0 to Rev. A

Change to Features, UL Recognition Value ...................................1

Change to Table 3, Input-to-Output Momentary Withstand

Voltage Value..................................................................................................6

Changes to Table 4, Isolation Voltage Value, and Endnote 1.......6

7/2008—Revision 0: Initial Version