Data SheetAD8362EQUIVALENT CIRCUITSDECLVPOSVPOS50kΩCOMMVTGTVTGT50kΩINTERFACEACOMGAIN = 0.12INHI100Ω 005 COMM 02923- VGA Figure 5. Circuit C 100ΩVPOSINLORAIL-TO-RAILOUTPUT0.7VVOUTVPOS2kΩACOM 003 CLPF500ΩDECLCOMM 006 02923- COMM 02923- Figure 3. Circuit A Figure 6. Circuit D VPOSSOURCE ONLYVPOSREF BUF~35kΩVSET~0.35VVOUTVSET~35kΩINTERFACE13kΩACOMACOM5kΩ 007 004 COMMCOMM 02923- 02923- Figure 4. Circuit B Figure 7. Circuit E Rev. F | Page 9 of 33 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS EQUIVALENT CIRCUITS TYPICAL PERFORMANCE CHARACTERISTICS CHARACTERIZATION SETUP EQUIPMENT ANALYSIS CIRCUIT DESCRIPTION SQUARE LAW DETECTION VOLTAGE vs. POWER CALIBRATION OFFSET ELIMINATION TIME-DOMAIN RESPONSE OF THE CLOSED LOOP OPERATION IN RF MEASUREMENT MODE BASIC CONNECTIONS DEVICE DISABLE RECOMMENDED INPUT COUPLING Choosing Input Coupling Capacitors Single-Ended Input Drive OPERATION AT LOW FREQUENCIES CHOOSING A VALUE FOR CHPF CHOOSING A VALUE FOR CLPF ADJUSTING VTGT TO ACCOMMODATE SIGNALS WITH VERY HIGH CREST FACTORS ALTERING THE SLOPE TEMPERATURE COMPENSATION AND REDUCTION OF TRANSFER FUNCTION RIPPLE TEMPERATURE COMPENSATION AT VARIOUS WiMAX FREQUENCIES UP TO 3.8 GHz OPERATION IN CONTROLLER MODE RMS VOLTMETER WITH 90 dB DYNAMIC RANGE AD8362 EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE