a 5 MHz–500 MHz 100 dB Demodulating Logarithmic Amplifier with Limiter Output AD8309 FUNCTIONAL BLOCK DIAGRAM SIX STAGES TOTAL GAIN 72dB INHI 12dB INLO LADR ATTEN 4 ؋ DET BIAS CTRL I-V TEN DETECTORS SPACED 12dB 12dB 12dB LIM LMLO LMDR TYP GAIN 18dB LMHI FEATURES Complete Multistage Log-Limiting IF Amplifier 100 dB Dynamic Range: –78 dBm to +22 dBm (Re 50 ⍀ ) Stable RSSI Scaling Over Temperature and Supplies: 20 mV/dB Slope, –95 dBm Intercept ؎0.
4 dB RSSI Linearity up to 200 MHz Programmable Limiter Gain and Output Current Differential Outputs to 10 mA, 2.
4 V p-p Overall Gain 100 dB, Bandwidth 500 MHz Constant Phase (Typical ؎80 ps Delay Skew) Single Supply of +2.
7 V to +6.
5 V at 16 mA Typi...

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