AD8307
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Typical Performance Characteristics ............................................. 6
Log Amp Theory .............................................................................. 9
Progressive Compression .......................................................... 10
Demodulating Log Amps .......................................................... 11
Intercept Calibration.................................................................. 12
Offset Control ............................................................................. 12
Extension of Range..................................................................... 13
Interfaces.......................................................................................... 14
Enable Interface .......................................................................... 14
Input Interface ............................................................................ 14
Offset Interface ........................................................................... 15
Output Interface ......................................................................... 15
Theory of Operation ...................................................................... 17
Basic Connections...................................................................... 17
Input Matching ........................................................................... 17
Narrow-Band Matching ............................................................ 18
Slope and Intercept Adjustments ............................................. 19
Applications Information .............................................................. 20
Buffered Output.......................................................................... 20
Four Pole Filter ........................................................................... 20
1 μW to 1 kW 50 Ω Power Meter............................................. 21
Measurement System with 120 dB Dynamic Range.............. 21
Operation at Low Frequencies.................................................. 22
DC-Coupled Applications......................................................... 22
Operation Above 500 MHz....................................................... 23
Outline Dimensions ....................................................................... 24
Ordering Guide .......................................................................... 24
REVISION HISTORY
10/06—Rev. B to Rev. C
Updated Format..................................................................Universal
Changes to Table 1............................................................................ 3
Changes to Table 3............................................................................ 5
Changes to Offset Interface........................................................... 15
Changes to Output Interface......................................................... 15
Updated captions to Outline Dimensions................................... 24
Changes to Ordering Guide .......................................................... 24
6/03—Rev. A to Rev. B
Renumbered TPCs and Figures........................................Universal
Changes to Ordering Guide ............................................................ 3
Changes to Figure 24...................................................................... 17
Deleted Evaluation Board Information ....................................... 18
Updated Outline Dimensions ....................................................... 19
Rev. C | Page 2 of 24
AD [ ANALOG DEVICES ]
