AD7264
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Typical Connection Diagrams.................................................. 17
Application Details..................................................................... 19
Modes of Operation ....................................................................... 20
Pin Driven Mode........................................................................ 20
Gain Selection............................................................................. 20
Power-Down Modes .................................................................. 20
Control Register ......................................................................... 21
On-Chip Registers...................................................................... 22
Serial Interface ................................................................................ 23
Calibration....................................................................................... 25
Internal Offset Calibration........................................................ 25
Adjusting the Offset Calibration Register............................... 26
System Gain Calibration............................................................ 26
Application Hints ........................................................................... 27
Grounding and Layout .............................................................. 27
PCB Design Guidelines for LFCSP.......................................... 27
Outline Dimensions ....................................................................... 28
Ordering Guide .......................................................................... 28
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Specifications .................................................................. 6
Absolute Maximum Ratings............................................................ 7
ESD Caution.................................................................................. 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ........................................... 10
Terminology .................................................................................... 14
Theory of Operation ...................................................................... 15
Circuit Information.................................................................... 15
Comparators................................................................................ 15
Operation..................................................................................... 15
Analog Inputs.............................................................................. 15
VDRIVE ............................................................................................ 16
Reference ..................................................................................... 16
REVISION HISTORY
11/12—Rev. A to Rev. B
Changes to Digital Input Voltage to DGND Parameter, Table 3 ...... 7
Updated Outline Dimensions.................................................................28
7/08—Rev. 0 to Rev. A
Added AD7264-5................................................................Universal
Added LQFP Package.........................................................Universal
Changes to Figure 1.......................................................................... 1
Changes to Common-Mode Voltage Range, VCM Parameter ..... 3
Changes to Table 3............................................................................ 7
Changes to Pin Configuration and Function
Description Section.......................................................................... 8
Changes to Figure 29...................................................................... 19
Updated Outline Dimensions....................................................... 28
Changes to Ordering Guide .......................................................... 29
5/08—Revision 0: Initial Version
Rev. B | Page 2 of 28
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