Datasheet

AD5410/AD5420 Data Sheet
Rev. F | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Companion Products ....................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 3
Specifications ..................................................................................... 4
AC Performance Characteristics ................................................ 6
Timing Characteristics ................................................................ 6
Absolute Maximum Ratings ............................................................ 8
ESD Caution .................................................................................. 8
Pin Configuration and Function Descriptions ............................. 9
Typical Performance Characteristics ........................................... 11
Terminology .................................................................................... 16
Theory of Operation ...................................................................... 17
Architecture ................................................................................. 17
Serial Interface ............................................................................ 17
Power-On State ........................................................................... 20
Transfer Function ....................................................................... 20
Data Register ............................................................................... 20
Control Register .......................................................................... 20
Reset Register .............................................................................. 21
Status Register ............................................................................. 21
AD5410/AD5420 Features ............................................................ 22
Fault Alert .................................................................................... 22
Asynchronous Clear (CLEAR) ................................................. 22
Internal Reference ...................................................................... 22
External Current Setting Resistor ............................................ 22
Digital Power Supply .................................................................. 22
External Boost Function ........................................................... 22
HART Communication ............................................................. 23
Digital Slew Rate Control .......................................................... 23
I
OUT
Filtering Capacitors ............................................................ 25
Feedback/Monitoring of Output Current ............................... 25
Applications Information .............................................................. 27
Driving Inductive Loads ............................................................ 27
Transient Voltage Protection .................................................... 27
Layout Guidelines....................................................................... 27
Galvanically Isolated Interface ................................................. 27
Microprocessor Interfacing ....................................................... 28
Thermal and Supply Considerations ....................................... 28
Industrial, HART Compatible Analog Output Application . 29
Outline Dimensions ....................................................................... 30
Ordering Guide .......................................................................... 30