AD8309 Datasheet (Analog Devices) - 5 MHz.500 MHz 100 dB Demodulating Logarithmic Amplifier with Limiter Output

AD8309, 5 MHz.500 MHz 100 dB Demodulating Logarithmic Amplifier with Limiter Output

The AD8309 is a complete IF limiting amplifier, providing both an accurate logarithmic (decibel) measure of the input signal (the RSSI function) over a dynamic range of 100 dB, and a programmable limiter output, useful from 5 MHz to 500 MHz.

It is easy to use, requiring few external components.

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AD8309 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 Output