AD5737 Analog Devices, AD5737 Datasheet - Page 2

• Manufacturer Part Number: AD5737
• Description: Quad Channel, 12-Bit, Serial Input, 4-20mA Output DAC with Dynamic Power Control and HART Connectivity
• Manufacturer: Analog Devices

Specifications of AD5737

• Resolution (bits): 12bit
• Dac Settling Time: 15µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Ser,SPI

AD5737
TABLE OF CONTENTS
Features .............................................................................................. 1
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
Absolute Maximum Ratings ............................................................ 9
Pin Configuration and Function Descriptions ........................... 10
Typical Performance Characteristics ........................................... 13
Terminology .................................................................................... 20
Theory of Operation ...................................................................... 21
Registers ........................................................................................... 23
REVISION HISTORY
11/11—Rev. 0 to Rev. A
Change to Accuracy, External R
Changes to Power-On State of the AD5737 Section .................. 21
Changes to Readback Operation Section and Readback
Example Section.............................................................................. 30
7/11—Revision 0: Initial Version
AC Performance Characteristics ................................................ 6
Timing Characteristics ................................................................ 6
Thermal Resistance ...................................................................... 9
ESD Caution .................................................................................. 9
Current Outputs ......................................................................... 13
DC-to-DC Converter ................................................................. 17
Reference ..................................................................................... 18
General ......................................................................................... 19
DAC Architecture ....................................................................... 21
Power-On State of the AD5737 ................................................ 21
Serial Interface ............................................................................ 21
Transfer Function ....................................................................... 22
Enabling the Output ................................................................... 24
Reprogramming the Output Range ......................................... 24
Data Registers ............................................................................. 25
SET
Parameter in Table 1 ............ 4
Rev. A | Page 2 of 44
Device Features ............................................................................... 32
Applications Information .............................................................. 39
Outline Dimensions ....................................................................... 42
Control Registers ........................................................................ 27
Readback Operation .................................................................. 30
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
AI
AI
External PMOS Mode ................................................................ 38
Current Output Mode with Internal R
Precision Voltage Reference Selection ..................................... 39
Driving Inductive Loads ............................................................ 39
Transient Voltage Protection .................................................... 40
Microprocessor Interfacing ....................................................... 40
Layout Guidelines....................................................................... 40
Galvanically Isolated Interface ................................................. 41
Ordering Guide .......................................................................... 42
CC
CC
Supply Requirements—Static .......................................... 36
Supply Requirements—Slewing ...................................... 37
SET
................................ 39
Data Sheet