AD8302

a FEATURES Measures Gain/Loss and Phase up to 2.7 GHz Dual Demodulating Log Amps and Phase Detector Input Range –60 dBm to 0 dBm in a 50 ⍀ System Accurate Gain Measurement Scaling (30 mV/dB) Typical Nonlinearity < 0.5 dB Accurate Phase Measurement Scaling (10 mV/Degree) Typical Nonlinearity < 1 Degree Measurement/Controller/Level Comparator Modes Operates from Supply Voltages of 2.7 V–5.5 V Stable 1.8 V Reference Voltage Output Small Signal Envelope Bandwidth from DC to 30 MHz APPLICATIONS RF/IF PA Linearization Precise RF Power Control Remote System Monitoring and Diagnostics Return Loss/VSWR Measurements Log Ratio Function for AC Signals LF–2.7 GHz RF/IF Gain and Phase Detector AD8302 FUNCTIONAL BLOCK DIAGRAM INPA OFSA AD8302 VIDEO OUTPUT – A + + 60dB LOG AMPS (7 DETECTORS) –– COMM PHASE DETECTOR MFLT VMAG MSET PSET OFSB INPB VPOS 60dB LOG AMPS (7 DETECTORS) VIDEO OUTPUT – B BIAS – + 1.8V x3 VPHS PFLT VREF PRODUCT DESCRIPTION The AD8302 is a fully ...