AD8333

Rev. A | Page 2 of 28

TABLE OF CONTENTS

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

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

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

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

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

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

Absolute Maximum Ratings............................................................ 5

ESD Caution.................................................................................. 5

Pin Configuration and Function Descriptions............................. 6

Equivalent Input Circuits ................................................................ 7

Typical Performance Characteristics ............................................. 8

Test Circuits..................................................................................... 14

Theory of Operation ...................................................................... 17

Quadrature Generation ............................................................. 17

I/Q Demodulator and Phase Shifter ........................................ 17

Dynamic Range and Noise........................................................ 18

Summation of Multiple Channels (Analog Beamforming).. 19

Phase Compensation and Analog Beamforming................... 19

Channel Summing ..................................................................... 20

Dynamic Range Inflation .......................................................... 22

Disabling the Current Mirror and Decreasing Noise............ 22

Applications..................................................................................... 24

Logic Inputs and Interfaces....................................................... 24

Reset Input .................................................................................. 24

Connecting to the LNA of the AD8331/

AD8332/AD8334/AD8335 VGAs............................................ 24

LO Input ...................................................................................... 25

Evaluation Board ........................................................................ 25

Outline Dimensions ....................................................................... 27

Ordering Guide .......................................................................... 27

REVISION HISTORY

5/06—Rev. 0 to Rev. A

Changes to Figure 62...................................................................... 26

10/05—Revision 0: Initial Version