AD8421 AD [Analog Devices], AD8421 Datasheet - Page 2

• Manufacturer Part Number: AD8421
• Description: 3 nV/?Hz, Low Power
• Manufacturer: AD [Analog Devices]

AD8421
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Pin Connection Diagram ................................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 10
Theory of Operation ...................................................................... 20
REVISION HISTORY
5/12—Revision 0: Initial Version
AR and BR Grades........................................................................ 3
ARM and BRM Grades................................................................ 5
Thermal Resistance ...................................................................... 8
ESD Caution.................................................................................. 8
Architecture................................................................................. 20
Rev. 0 | Page 2 of 28
Applications Information .............................................................. 25
Outline Dimensions ....................................................................... 27
Gain Selection............................................................................. 20
Reference Terminal .................................................................... 21
Input Voltage Range................................................................... 21
Layout .......................................................................................... 21
Input Bias Current Return Path ............................................... 22
Input Voltages Beyond the Supply Rails.................................. 22
Radio Frequency Interference (RFI)........................................ 23
Calculating the Noise of the Input Stage................................. 23
Differential Output Configuration .......................................... 25
Driving an ADC ......................................................................... 26
Ordering Guide .......................................................................... 27
Data Sheet