AD5737
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Readback Operation .................................................................. 30
Device Features............................................................................... 32
Fault Output................................................................................ 32
Digital Offset and Gain Control............................................... 32
Status Readback During a Write .............................................. 32
Asynchronous Clear................................................................... 32
Packet Error Checking............................................................... 33
Watchdog Timer......................................................................... 33
Alert Output................................................................................ 33
Internal Reference ...................................................................... 33
External Current Setting Resistor ............................................ 33
HART Connectivity ................................................................... 34
Digital Slew Rate Control.......................................................... 34
Dynamic Power Control............................................................ 35
DC-to-DC Converters............................................................... 35
AICC Supply Requirements—Static .......................................... 36
AICC Supply Requirements—Slewing ...................................... 37
External PMOS Mode................................................................ 38
Applications Information .............................................................. 39
Current Output Mode with Internal RSET................................ 39
Precision Voltage Reference Selection..................................... 39
Driving Inductive Loads............................................................ 39
Transient Voltage Protection .................................................... 40
Microprocessor Interfacing....................................................... 40
Layout Guidelines....................................................................... 40
Galvanically Isolated Interface ................................................. 41
Industrial HART Capable Analog Output Application ........ 42
Outline Dimensions....................................................................... 43
Ordering Guide .......................................................................... 43
Applications....................................................................................... 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Companion Products ....................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Detailed Functional Block Diagram .............................................. 3
Specifications..................................................................................... 4
AC Performance Characteristics ................................................ 6
Timing Characteristics ................................................................ 6
Absolute Maximum Ratings............................................................ 9
Thermal Resistance ...................................................................... 9
ESD Caution.................................................................................. 9
Pin Configuration and Function Descriptions........................... 10
Typical Performance Characteristics ........................................... 13
Current Outputs ......................................................................... 13
DC-to-DC Converter................................................................. 17
Reference ..................................................................................... 18
General......................................................................................... 19
Terminology .................................................................................... 20
Theory of Operation ...................................................................... 21
DAC Architecture....................................................................... 21
Power-On State of the AD5737 ................................................ 21
Serial Interface ............................................................................ 21
Transfer Function ....................................................................... 22
Registers........................................................................................... 23
Enabling the Output................................................................... 24
Reprogramming the Output Range ......................................... 24
Data Registers ............................................................................. 25
Control Registers........................................................................ 27
REVISION HISTORY
5/12—Rev. A to Rev. B
Changes to Readback Operation Section and Readback
Changes to Companion Products Section .................................... 1
Change to Table 6 ........................................................................... 12
Added Industrial HART Capable Analog Output Application
Section and Figure 65, Renumbered Sequentially ..................... 42
Updated Outline Dimensions....................................................... 43
Example Section ............................................................................. 30
7/11—Revision 0: Initial Version
11/11—Rev. 0 to Rev. A
Change to Accuracy, External RSET Parameter in Table 1............ 4
Changes to Power-On State of the AD5737 Section.................. 21
Rev. B | Page 2 of 44
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