AD5680
TABLE OF CONTENTS
Features..............................................................................................1
Rev. 0 | Page 2 of 20
Applications.......................................................................................1
Functional Block Diagram..............................................................1
General Description.........................................................................1
Product Highlights...........................................................................1
Related Devices.................................................................................1
Revision History...............................................................................2
Specifications.....................................................................................3
Timing Characteristics.....................................................................4
Absolute Maximum Ratings............................................................5
ESD Caution..................................................................................5
Pin Configuration and Function Description..............................6
Typical Performance Characteristics.............................................7
Terminology....................................................................................10
Theory of Operation......................................................................11
DAC Section................................................................................11
Resistor String.............................................................................11
Output Amplifier........................................................................ 11
Interpolator Architecture.......................................................... 11
Serial Interface............................................................................ 12
Input Shift Register.................................................................... 12
SYNC Interrupt .......................................................................... 12
Power-On Reset.......................................................................... 12
Microprocessor Interfacing....................................................... 13
Applications..................................................................................... 14
Closed-Loop Applications ........................................................ 14
Filter............................................................................................. 14
Choosing a Reference for the AD5680.................................... 15
Using a Reference as a Power Supply for the AD5680.......... 16
Using the AD5680 with a Galvanically Isolated Interface.... 16
Power Supply Bypassing and Grounding................................ 16
Outline Dimensions....................................................................... 17
Ordering Guide .......................................................................... 17
REVISION HISTORY
6/06—Revision 0: Initial Version
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