AD8226

Data Sheet

Rev. C | Page 2 of 28

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Pin Configuration............................................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Absolute Maximum Ratings............................................................ 7

Thermal Resistance ...................................................................... 7

ESD Caution.................................................................................. 7

Pin Configuration and Function Descriptions............................. 8

Typical Performance Characteristics ............................................. 9

Theory of Operation ...................................................................... 19

Architecture................................................................................. 19

Gain Selection............................................................................. 19

Reference Terminal .................................................................... 20

Input Voltage Range................................................................... 20

Layout .......................................................................................... 20

Input Bias Current Return Path ............................................... 21

Input Protection ......................................................................... 22

Radio Frequency Interference (RFI)........................................ 22

Applications Information .............................................................. 23

Differential Drive ....................................................................... 23

Precision Strain Gage................................................................. 24

Driving an ADC ......................................................................... 24

Outline Dimensions....................................................................... 25

Ordering Guide .......................................................................... 25

REVISION HISTORY

9/12—Rev. B to Rev. C

Changes to CMRR, Voltage Offset, Input Offset Current, and

Gain Error Parameters, Table 2....................................................... 3

Changes to CMRR, Voltage Offset, and Input Offset Current

Parameters, Table 2........................................................................... 5

3/11—Rev. A to Rev. B

Added AD8235/AD8236 to Table 1 ............................................... 1

Changes to Endnote 1, Table 2........................................................ 4

Change Endnote 2 Placement in Total Noise Equation, Table 3 ...... 5

Added G > 1 BRZ, BRMZ Max Parameter.................................... 6

Changes to Endnote 1, Table 3........................................................ 6

Changes to Figure 18...................................................................... 11

Changes to Figure 37...................................................................... 14

Changes to Figure 42...................................................................... 15

Updated Outline Dimensions....................................................... 25

7/09—Rev. 0 to Rev. A

Added BRZ and BRM Models ..........................................Universal

Changes to Features Section ............................................................1

Changes to Table 1.............................................................................1

Changes to General Description Section .......................................1

Changes to Gain vs. Temperature Parameter, Output Parameter,

and Operating Range Parameter, Table 2...........................................4

Changes to Common-Mode Rejection Ratio (CMRR) Parameter

Parameter, Table 3 .........................................................................5

Changes to Gain vs. Temperature Parameter, Table 3 ..................6

Changes to Gain Selection Section .............................................. 19

Changes to Reference Terminal Section and Input Voltage

Range Section.............................................................................. 20

Changes to Ordering Guide.......................................................... 25

1/09—Revision 0: Initial Version