AD5700/AD5700-1

Data Sheet

Rev. D | Page 2 of 24

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Characteristics ................................................................ 5

Absolute Maximum Ratings............................................................ 6

Thermal Resistance ...................................................................... 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

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

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

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

FSK Modulator ........................................................................... 13

Connecting to HART_OUT ..................................................... 14

FSK Demodulator ...................................................................... 14

Connecting to HART_IN or ADC_IP .................................... 14

Clock Configuration .................................................................. 15

Supply Current Calculations..................................................... 16

Power-Down Mode.................................................................... 16

Full Duplex Operation............................................................... 16

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

Supply Decoupling ..................................................................... 17

Transient Voltage Protection .................................................... 17

Typical Connection Diagrams.................................................. 18

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

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

REVISION HISTORY

5/13—Rev. C to Rev. D

2/13—Rev. B to Rev. C

Changed 2 V to 5.5 V Power Supply to 1.71 V to 5.5 V Power

Supply, Features Section .................................................................. 1

Reference Voltage Parameter Test Conditions/Comments,

Table 2 ................................................................................................ 3

Summary Statement, Table 3........................................................... 5

Changes to Pin 18 Description and EPAD Mnemonic and

Description, Table 6.......................................................................... 7

Changes to Figure 9 and Figure 13............................................... 10

Changes to Figure 28...................................................................... 18

Change to Figure 30 ....................................................................... 20

7/12—Rev. A to Rev. B

Added Internal Oscillator and External Clock Parameters

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

Added Supply Current Calculations Section.............................. 16

Added Transient Voltage Protection Section, Figure 26, and

Figure 27; Renumbered Sequentially........................................... 17

Changes to Typical Connection Diagrams Section ................... 18

Changes to Figure 29...................................................................... 19

Changes to Figure 30...................................................................... 20

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

4/12—Rev. 0 to Rev. A

Change to Transmit Impedance Parameter, RTS Low, Table 2...4

Changes to Figure 3, Figure 4, Figure 5, and Figure 7..................9

Changes to Figure 10 and Figure 11 ............................................ 10

Changed AD5755 to AD5755-1 Throughout............................. 17

Change to Figure 27 ....................................................................... 18

2/12—Revision 0: Initial Version