Datasheet

AD5641 Data Sheet
Rev. D | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Timing Characteristics ................................................................ 4
Absolute Maximum Ratings ............................................................ 5
ESD Caution .................................................................................. 5
Pin Configuration and Function Descriptions ............................. 6
Typical Performance Characteristics ............................................. 7
Terminology .................................................................................... 12
Theory of Operation ...................................................................... 13
Digital-to-Analog Section ......................................................... 13
Resistor String ............................................................................. 13
Output Amplifier ........................................................................ 13
Serial Interface ............................................................................ 13
Input Shift Register .................................................................... 13
SYNC
Interrupt .......................................................................... 13
Power-On Reset .......................................................................... 14
Power-Down Modes .................................................................. 14
Microprocessor Interfacing ....................................................... 15
Applications ..................................................................................... 16
Choosing a Reference as Power Supply for the AD5641....... 16
Bipolar Operation Using the AD5641 ..................................... 16
Using the AD5641 with a Galvanically Isolated Interface .... 17
Power Supply Bypassing and Grounding ................................ 17
Outline Dimensions ....................................................................... 18
Ordering Guide .......................................................................... 19
REVISION HISTORY
2/12—Rev. C to Rev. D
Added 6-Lead LFCSP ......................................................... Universal
Changes to Title, Features Section, General Description Section,
Table 1, and Product Highlights Section, ...................................... 1
Changes to Table 4 ............................................................................ 5
Added Figure 4; Renumbered Sequentially .................................. 6
Changes to Table 5 ............................................................................ 6
Change to Choosing a Reference as Power Supply for the
AD5641 Section .............................................................................. 16
Updated Outline Dimensions ....................................................... 18
Changes to Ordering Guide .......................................................... 19
10/07—Rev. B to Rev. C
Added B Grade .................................................................... Universal
Changes to Offset Error and Gain Error Specifications .............. 3
Changes to Table 4 ............................................................................ 5
Changes to Typical Performance Characteristics ......................... 7
Changes to Ordering Guide .......................................................... 18
7/05—Rev. A to Rev. B
Change to Galvanically Isolated Interface Section ..................... 18
Changes to Figure 44 ...................................................................... 18
3/05—Rev. 0 to Rev. A
Changes to Timing Characteristics ................................................. 4
Changes to Absolute Maximum Ratings ........................................ 5
Changes to Full-Scale Error Section ............................................... 7
Changes to Figures 28 and 30 ....................................................... 12
Change to Resistor String Section ................................................ 13
Changes to Power-Down Mode Section ..................................... 14
1/05—Revision 0: Initial Version