AD8315

Data Sheet

Rev. D | Page 2 of 22

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

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

 

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

 

Absolute Maximum Ratings............................................................ 5

 

ESD Caution.................................................................................. 5

 

Pin Configuration and Function Descriptions............................. 6

 

Typical Performance Characteristics ............................................. 7

 

Theory of Operation ...................................................................... 12

 

Basic Theory................................................................................ 12

 

Controller-Mode Log Amps ..................................................... 13

 

Control Loop Dynamics............................................................ 13

 

Practical Loop ............................................................................. 15

 

A Note About Power Equivalency ........................................... 15

 

Basic Connections...................................................................... 16

 

Range on VSET and RFIN ........................................................ 16

 

Transient Response .................................................................... 16

 

Mobile Handset Power Control Example ............................... 18

 

Enable and Power-On................................................................ 18

 

Input Coupling Options ............................................................ 19

 

Using the Chip Scale Package ................................................... 19

 

Evaluation Board ........................................................................ 19

 

Outline Dimensions ....................................................................... 21

 

Ordering Guide .......................................................................... 21

 

REVISION HISTORY

8/2016—Rev. C to Rev. D

Changes to Figure 2 and Table 4..................................................... 6

Added Figure 3; Renumbered Sequentially .................................. 6

Updated Outline Dimensions ....................................................... 21

Changes to Ordering Guide .......................................................... 21

6/2006—Rev. B to Rev. C

Updated Format..................................................................Universal

Changes to Ordering Guide .......................................................... 23

1/2003—Rev. 0 to Rev. B

Edits to Product Description Section ............................................ 1

Edit to Functional Block Diagram ................................................. 1

Edits to Specifications ...................................................................... 2

Edits to Absolute Maximum Ratings ............................................. 3

Ordering Guide Updated................................................................. 3

TPC 9 Replaced with New Figure .................................................. 5

Edits to TPC 27 ................................................................................. 8

Edit to Figure 1.................................................................................. 9

Edit to Figure 3 ............................................................................... 10

Edit to Equation 9........................................................................... 10

Edit to Equation 10......................................................................... 10

Edit to Equation 11......................................................................... 10

Edits to Example section ............................................................... 10

Edit to Basic Connections Section ............................................... 12

Edits to Input Coupling Options Section.................................... 14

Table III Becomes Table II............................................................. 15

Table II Recommended Components Deleted ........................... 15

Using the Chip-Scale Package Section Added............................ 15

Edits to Evaluation Board Section................................................ 15

Figure 12 Title Edited..................................................................... 16

Figure 13 Title Edited..................................................................... 16

8-Lead Chip Scale Package (CP-8) Added .................................. 17

Updated Outline Dimensions....................................................... 17

10/1999—Revision 0: Initial Version