AD5737 Analog Devices, AD5737 Datasheet - Page 2
AD5737
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
Datasheet
1.AD5737.pdf
(44 pages)
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
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Part Number
Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
AD
Quantity:
101
Part Number:
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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