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AD8334-EVALZ Datasheet(PDF) 2 Page - Analog Devices |
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AD8334-EVALZ Datasheet(HTML) 2 Page - Analog Devices |
2 / 56 page AD8331/AD8332/AD8334 Rev. G | Page 2 of 56 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 4 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Pin Configurations and Function Descriptions ........................... 8 Typical Performance Characteristics ........................................... 12 Test Circuits..................................................................................... 20 Measurement Considerations................................................... 20 Theory of Operation ...................................................................... 24 Overview...................................................................................... 24 Low Noise Amplifier (LNA) ..................................................... 25 Variable Gain Amplifier ............................................................ 27 Postamplifier ............................................................................... 28 Applications Information .............................................................. 30 LNA—External Components.................................................... 30 Driving ADCs ............................................................................. 32 Overload ...................................................................................... 32 Optional Input Overload Protection ....................................... 32 Layout, Grounding, and Bypassing.......................................... 33 Multiple Input Matching ........................................................... 33 Disabling the LNA...................................................................... 33 Ultrasound TGC Application ................................................... 34 High Density Quad Layout ....................................................... 34 AD8331 Evaluation Board ............................................................ 39 General Description................................................................... 39 User-Supplied Optional Components ..................................... 39 Measurement Setup.................................................................... 39 Board Layout............................................................................... 39 AD8331 Evaluation Board Schematics.................................... 40 AD8331 Evaluation Board PCB Layers ................................... 42 AD8332 Evaluation Board ............................................................ 43 General Description................................................................... 43 User-Supplied Optional Components ..................................... 43 Measurement Setup.................................................................... 43 Board Layout............................................................................... 43 Evaluation Board Schematics ................................................... 44 AD8332 Evaluation Board PCB Layers ................................... 46 AD8334 Evaluation Board ............................................................ 47 General Description................................................................... 47 Configuring the Input Impedance ........................................... 48 Measurement Setup.................................................................... 48 Board Layout............................................................................... 48 Evaluation Board Schematics ................................................... 49 AD8334 Evaluation Board PCB Layers ................................... 51 Outline Dimensions ....................................................................... 53 Ordering Guide .......................................................................... 55 REVISION HISTORY 10/10—Rev. F to Rev. G Changes to Quiescent Current per Channel Parameter, Table 1 ................................................................................................ 6 Changes to Pin 1, Table 3................................................................. 8 Changes to Pin 1 and Pin 28, Table 4 and Pin 4 and Pin 5, Table 5 ................................................................................................ 9 Changes to Figure 6 and Table 6................................................... 10 Changes to Figure 33...................................................................... 16 Changes to Figure 64...................................................................... 22 Changes to Figure 70...................................................................... 24 Changes to Low Noise Amplifier (LNA) Section and Figure 74 .......................................................................................... 25 Changes to Figure 94...................................................................... 38 Changes to General Descriptions Section, Figure 95 Caption, Table 10, and Board Layout Section............................................. 39 Changes to Figure 96...................................................................... 40 Changes to Figure 97...................................................................... 41 Changes to Figure 98 and Figure 103........................................... 42 Deleted AD8331 Bill of Materials Section and Table 11; Renumbered Sequentially ............................................................. 43 Changes to Figure 104 ................................................................... 43 Changes to Figure 106 ................................................................... 45 Changes to Figure 107 ................................................................... 46 Changes to Figure 113 ................................................................... 47 Changes to Figure 114 and Board Layout Section ..................... 48 Deleted AD8332 Bill of Materials Section and Table 13; Renumbered Sequentially ............................................................. 48 Changes to Figure 115 ................................................................... 49 Changes to Figure 116 ................................................................... 50 Changes to Figure 117 to Figure 120 ........................................... 51 Changes to Figure 121 ................................................................... 52 Deleted AD8334 Bill of Materials Section and Table 15; Renumbered Sequentially ............................................................. 54 |
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