AD5620/AD5640/AD5660
TABLE OF CONTENTS
Features .............................................................................................. 1
Internal Reference ...................................................................... 17
Output Amplifier........................................................................ 17
Serial Interface............................................................................ 17
Input Shift Register .................................................................... 18
Applications....................................................................................... 1
Product Highlights ........................................................................... 1
Functional Block Diagram .............................................................. 1
General Description......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
AD5620/AD5640/AD5660-2-3 .................................................. 3
AD5620/AD5640/AD5660-1...................................................... 5
Timing Characteristics ................................................................ 7
Absolute Maximum Ratings............................................................ 8
ESD Caution.................................................................................. 8
Pin Configurations and Function Descriptions ........................... 9
Typical Performance Characteristics ........................................... 10
Terminology .................................................................................... 16
Theory of Operation ...................................................................... 17
D/A Section................................................................................. 17
Resistor String............................................................................. 17
Interrupt .......................................................................... 18
SYNC
Power-On Reset.......................................................................... 19
Power-Down Modes .................................................................. 19
Microprocessor Interfacing....................................................... 19
Applications Information.............................................................. 21
Using a REF19x as a Power Supply for the
AD5620/AD5640/AD5660 ....................................................... 21
Bipolar Operation Using the AD5660..................................... 21
Using the AD5660 as an Isolated, Programmable, 4 mA to
20 mA Process Controller......................................................... 22
Using the AD5620/AD5640/AD5660 with a Galvanically
Isolated Interface ........................................................................ 22
Power Supply Bypassing and Grounding................................ 23
Outline Dimensions....................................................................... 24
Ordering Guide .......................................................................... 25
REVISION HISTORY
12/10—Rev. E to Rev. F
Changes to Ordering Guide .......................................................... 25
5/06—Rev. A to Rev. B
Updated Formatted ............................................................Universal
Updated Temperature Range ............................................Universal
Changes to Table 2.............................................................................3
Changes to Table 5.............................................................................8
Replaced Figure 17, Figure 18, and Figure 19............................. 12
Changes to Ordering Guides .................................................. 23, 24
7/10—Rev. D to Rev. E
Moved Using the AD5660 as an Isolated, Programmable, 4 mA
to 20 mA Process Controller Section........................................... 22
Moved Power Supply Bypassing and Grounding Section......... 23
Changes to Ordering Guide .......................................................... 25
3/10—Rev. C to Rev. D
9/05—Rev. 0 to Rev. A
Changes to Ordering Guide .......................................................... 24
Changes to Specifications.................................................................5
Changes to Outline Dimensions .................................................. 23
10/09—Rev. B to Rev. C
Changes to Ordering Guide .......................................................... 23
7/05—Revision 0: Initial Version
Rev. F | Page 2 of 28