AD7401

Data Sheet

Rev. F | Page 2 of 18

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Specifications .................................................................. 4

Insulation and Safety Related Specifications ............................ 5

Regulatory Information............................................................... 5

DIN V VDE V 0884-10 (VDE V 0884-10) Insulation

Characteristics .............................................................................. 6

Absolute Maximum Ratings............................................................ 7

ESD Caution.................................................................................. 7

Pin Configuration and Function Descriptions............................. 8

Typical Performance Characteristics ..............................................9

Terminology.................................................................................... 12

Theory of Operation ...................................................................... 13

Circuit Information.................................................................... 13

Analog Input ............................................................................... 13

Differential Inputs...................................................................... 14

Digital Filter ................................................................................ 15

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

Grounding and Layout .............................................................. 17

Evaluating the AD7401 Performance...................................... 17

Insulation Lifetime..................................................................... 17

Outline Dimensions....................................................................... 18

Ordering Guide .......................................................................... 18

REVISION HISTORY

4/2018—Rev. E to Rev. F

Changes to Table 3 and Table 4....................................................... 5

12/2015—Rev. D to Rev. E

Changes to Ordering Guide .......................................................... 18

7/2011—Rev. C to Rev. D

Changes to Minimum External Air Gap (Clearance) Parameter,

Table 3 and Minimum External Tracking (Creepage) Parameter,

Table 3 ................................................................................................ 5

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

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

1/2011—Rev. B to Rev. C

Changes to Features Section............................................................ 1

Changes to Input-to-Output Momentary Withstand Voltage

Parameter, Table 3, UL Column, Table 4, and Note 1, Table 4 ........ 5

Changes to Ordering Guide ............................................................ 18

9/2007—Rev. A to Rev. B

Updated VDE Certification Throughout ......................................1

Changes to Table 6.............................................................................7

12/2006—Rev. 0 to Rev. A

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

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

Changes to Table 2.............................................................................4

Changes to Table 6.............................................................................7

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

Changes to Circuit Information Section ..................................... 13

Changes to Figure 27...................................................................... 15

1/2006—Revision 0: Initial Version