AD8331ARQ-REEL Analog Devices Inc, AD8331ARQ-REEL Datasheet - Page 2

• Manufacturer Part Number: AD8331ARQ-REEL
• Description: IC VGA SINGLE W/PREAMP 20-SSOP
• Manufacturer: Analog Devices Inc
• Series: X-AMP®r
• Type: Variable Gain Amplifierr

Specifications of AD8331ARQ-REEL

• Rohs Status: RoHS non-compliant
• Design Resources: Interfacing the High Frequency AD8331 to AD9215 (CN0096)
• Applications: Signal Processing
• Mounting Type: Surface Mount
• Package / Case: 20-QSOP
• For Use With: AD8331-EVALZ - BOARD EVAL FOR AD8331

AD8331/AD8332/AD8334
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 4
Absolute Maximum Ratings ............................................................ 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ........................................... 12
Test Circuits ..................................................................................... 20
Theory of Operation ...................................................................... 24
Applications Information .............................................................. 30
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
ESD Caution .................................................................................. 7
Measurement Considerations ................................................... 20
Overview ...................................................................................... 24
Low Noise Amplifier (LNA) ..................................................... 25
Variable Gain Amplifier ............................................................ 27
Postamplifier ............................................................................... 28
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
Rev. G | Page 2 of 56
AD8331 Evaluation Board ............................................................ 39
AD8332 Evaluation Board ............................................................ 43
AD8334 Evaluation Board ............................................................ 47
Outline Dimensions ....................................................................... 53
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
Ultrasound TGC Application ................................................... 34
High Density Quad Layout ....................................................... 34
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
General Description ................................................................... 43
User-Supplied Optional Components ..................................... 43
Measurement Setup.................................................................... 43
Board Layout ............................................................................... 43
Evaluation Board Schematics ................................................... 44
AD8332 Evaluation Board PCB Layers ................................... 46
General Description ................................................................... 47
Configuring the Input Impedance ........................................... 48
Measurement Setup.................................................................... 48
Board Layout ............................................................................... 48
Evaluation Board Schematics ................................................... 49
AD8334 Evaluation Board PCB Layers ................................... 51
Ordering Guide .......................................................................... 55