ADA4350ARUZ-R7 datasheet(3/38 Pages) AD

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ADA4350

Data Sheet

Rev. B | Page 2 of 37

TABLE OF CONTENTS

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

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

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

Functional Block Diagram .............................................................. 1

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

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

±5 V Full System........................................................................... 3

±5 V FET Input Amplifier........................................................... 4

±5 V Internal Switching Network and Digital Pins................. 5

±5 V ADC Driver ......................................................................... 6

5 V Full System ............................................................................. 8

5 V FET Input Amplifier ............................................................. 9

5 V Internal Switching Network and Digital Pins.................. 10

5 V ADC Driver.......................................................................... 11

Timing Specifications ................................................................ 13

Absolute Maximum Ratings.......................................................... 15

Thermal Resistance .................................................................... 15

Maximum Power Dissipation ................................................... 15

ESD Caution................................................................................ 15

Pin Configuration and Function Descriptions........................... 16

Typical Performance Characterisitics.......................................... 17

Full System .................................................................................. 17

FET Input Amplifier .................................................................. 19

ADC Driver................................................................................. 22

Test Circuits..................................................................................... 26

Theory of Operation ...................................................................... 27

Kelvin Switching Techniques.................................................... 27

Applications Information .............................................................. 28

Configuring the ADA4350.......................................................... 28

Selecting the Transimpedance Gain Paths Manually or

Through the Parallel Interface.................................................. 28

Selecting the Transimpedance Gain Paths Through the

SPI Interface (Serial Mode)....................................................... 28

SPICE Model............................................................................... 30

Transimpedance Amplifier Design Theory ................................ 32

Transimpedance Gain Amplifier Performance ...................... 34

The Effect of Low Feedback Resistor RFx ................................ 35

Using The T Network to Implement Large Feedback

Resistor Values............................................................................ 36

Outline Dimensions....................................................................... 37

Ordering Guide .......................................................................... 37

REVISION HISTORY

3/16—Rev. A to Rev. B

Change to Table 15 ......................................................................... 29

12/15—Rev. 0 to Rev. A

Changes to Table 1............................................................................ 3

Changes to Table 5............................................................................ 8

Deleted Figure 4; Renumbered Sequentially............................... 14

Changes to Table 10........................................................................ 15

Changes to Table 14........................................................................ 29

4/15—Revision 0: Initial Version

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