Datasheet

AD5628/AD5648/AD5668 Data Sheet
Rev. J | Page 2 of 30
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 4
AC Characteristics ........................................................................ 7
Timing Characteristics ................................................................ 8
Absolute Maximum Ratings ............................................................ 9
Thermal Resistance ...................................................................... 9
ESD Caution .................................................................................. 9
Pin Configurations and Function Descriptions ......................... 10
Typical Performance Characteristics ........................................... 12
Terminology .................................................................................... 20
Theory of Operation ...................................................................... 22
DAC Section ................................................................................ 22
Resistor String ............................................................................. 22
Internal Reference ...................................................................... 22
Output Amplifier ........................................................................ 23
Serial Interface ............................................................................ 23
Input Shift Register .................................................................... 24
SYNC
Interrupt .......................................................................... 24
Internal Reference Register ....................................................... 25
Power-On Reset .......................................................................... 25
Power-Down Modes .................................................................. 25
Clear Code Register ................................................................... 25
LDAC
Function .......................................................................... 27
Power Supply Bypassing and Grounding ................................ 27
Outline Dimensions ....................................................................... 28
Ordering Guide .......................................................................... 30
REVISION HISTORY
1/2017—Rev. I to Rev. J
Changes to Table 5 ............................................................................ 9
Added Thermal Resistance Section and Table 6; Renumbered
Sequentially ....................................................................................... 9
Changes to Figure 3 ........................................................................ 10
11/2014—Rev. H to Rev. I
Changes to Ordering Guide .......................................................... 29
2/2014—Rev. G to Rev. H
Changes to Figure 1 .......................................................................... 1
Change to Figure 6 ......................................................................... 10
Change to Table 7 ........................................................................... 10
Changes to Figure 45, Figure 46, and Figure 47 ......................... 17
Changes to Ordering Guide .......................................................... 29
1/2013—Rev. F to Rev. G
Added WLCSP Reference TC of 15 ppm/°C, Table 2 .................. 5
Changes to Ordering Guide .......................................................... 29
8/2011—Rev. E to Rev. F
Added 16-Ball WLCSP ...................................................... Universal
Added Figure 6 and Table 7; Renumbered Sequentially ........... 10
Changes to Figure 32 and Figure 33............................................. 15
Updated Outline Dimensions ....................................................... 26
Changes to Ordering Guide .......................................................... 28
1/2011—Rev. D to Rev. E
Changes to AD5628 Relative Accuracy, Zero-Code Error, Offset
Error, and Reference TC Parameters, Table 1 ................................ 3
Changes to AD5628 Relative Accuracy, Zero-Code Error, Offset
Error, and Reference TC Parameters, Table 2 ................................ 5
Changes to Output Voltage Settling Time, Table 3 ....................... 6
Added Figure 53; Renumbered Sequentially .............................. 17
Change to Output Amplifier Section ........................................... 21
Changes to Ordering Guide .......................................................... 28
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