AD8362-EVAL 데이터 시트보기 (PDF) - Analog Devices
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AD8362-EVAL Datasheet PDF : 36 Pages
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AD8362
TABLE OF CONTENTS
Specifications ................................................................................... 3
Absolute Maximum Ratings .......................................................... 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Description ............................. 7
Equivalent Circuits.......................................................................... 8
Typical Performance Characteristics............................................ 9
Characterization Setup ................................................................. 14
Equipment ................................................................................... 14
Analysis........................................................................................ 14
Circuit Description........................................................................ 15
Square-Law Detection ............................................................... 15
Effect of Input Coupling on the Intercept Value .................... 16
Offset Elimination ...................................................................... 16
Voltage vs. Power Calibration ................................................... 17
Effect of Signal Waveform ......................................................... 17
Operation at Low Frequencies.................................................. 17
Time-Domain Response of the Closed Loop ......................... 17
Alteration of the Internal Target Voltage................................. 18
Effects at Each End of Dynamic Range ................................... 18
Input Protection.......................................................................... 19
Power-Enable Response Time .................................................. 19
Using the AD8362 ......................................................................... 20
Basic Connections ...................................................................... 20
Main Modes of Operation............................................................ 21
Operation in Measurement Modes............................................. 22
Law Conformance Error............................................................ 22
Alternative Input Coupling Means .......................................... 23
Using a Narrow-Band Input Match ......................................... 23
Uncertainties in RIN and Power Calibration............................ 24
Choosing the Right Value for CHPF and CLPF..................... 24
Use of Nonstandard Target Voltages........................................ 24
Adjusting the Intercept .............................................................. 25
Altering the Slope....................................................................... 25
Envelope Elimination Mode ..................................................... 26
Operator in Controller Modes .................................................... 27
Use of an Input Balun ................................................................ 27
General Applications .................................................................... 29
RMS Voltmeter with >100 dB Dynamic Range...................... 29
RF Power Meter with 80 dB Range .......................................... 30
High Slope Detectors Centered on a Narrow Window ......... 31
AD8362 Evaluation Board ........................................................ 32
Outline Dimensions...................................................................... 34
Ordering Guide .......................................................................... 34
REVISION HISTORY
3/04—Data Sheet Changed from Rev. A to Rev. B.
Updated Format.................................................................Universal
Changes to Specifications............................................................... 3
Changes to the Offset Elimination Section................................ 16
Changes to the Operation at Low Frequencies Section............ 17
Changes to the Time-Domain Response of the Closed Loop
Section............................................................................................. 17
Changes to Equation 13................................................................ 24
Changes to Table 5......................................................................... 31
6/03—Data Sheet Changed from Rev. 0 to Rev. A.
Updated Ordering Guide................................................................ 5
Change to Analysis Section.......................................................... 12
Updated AD8362 Evaluation Board Section ............................. 26
2/03—Revision 0: Initial Version
Rev. B | Page 2 of 36
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