Data Sheet

ADA4352-2

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Rev 0

3 of 47

TABLE OF CONTENTS

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

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

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

Simplified Application Diagram................................................................................................................................................................2

Revision History .........................................................................................................................................................................................4

Specifications.............................................................................................................................................................................................5

Absolute Maximum Ratings ....................................................................................................................................................................14

Electrostatic Discharge (ESD).............................................................................................................................................................14

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

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

Pin Configurations and Function Descriptions......................................................................................................................................16

Typical Performance Characteristics .....................................................................................................................................................17

Theory of Operation ................................................................................................................................................................................28

OVERVIEW ............................................................................................................................................................................................28

PGTIA ERRORS.....................................................................................................................................................................................29

PGTIA Measurements .....................................................................................................................................................................29

Input Offset Voltage........................................................................................................................................................................29

Input Bias Current...........................................................................................................................................................................30

Switch Off Leakage Current ...........................................................................................................................................................30

Output-Referred Offset Voltage.....................................................................................................................................................30

Kelvin Connection and TIA Accuracy.............................................................................................................................................31

Maximum Linear Input Current Range .........................................................................................................................................32

ESD Protection................................................................................................................................................................................33

MAIN AMPLIFIER (CMOS) ................................................................................................................................................................34

Applications Information ........................................................................................................................................................................36

RC Tolerancing ....................................................................................................................................................................................36

RC Tolerancing and Effect of External RC Filter ................................................................................................................................37

Frequency Response Variation with Diode Capacitance CD .............................................................................................................38

Using the ADA4352-2 LTspice Model..................................................................................................................................................41

Error Budget ........................................................................................................................................................................................41

Combining ADA4352-2 with a 16-Bit SAR ADC ..............................................................................................................................42

Typical ADA4352-2 Optical Signal Chain Application...................................................................................................................42

External RC Filter Design Considerations for SAR ADC Driving ........................................................................................................42

Using the AD4696 Easy Drive ADC’s Input Settings ......................................................................................................................43