AD8318 Datasheet (Analog Devices) - Logarithmic Detector/Controller

AD8318, Logarithmic Detector/Controller

The AD8318 is a demodulating logarithmic amplifier, capable of accurately converting an RF input signal to a corresponding decibel-scaled output voltage.

It employs the progressive compression technique over a cascaded amplifier chain, each stage of which is equipped with a detector cell.

The device

AD8318 Features

* Wide bandwidth: 1 MHz to 8 GHz

* High accuracy: ±1.0 dB over 55 dB range (f < 5.8 GHz)

* Stability over temperature: ±0.5 dB

* Low noise measurement/controller output (VOUT)

* Pulse response time: 10 ns/12 ns (fall/rise)

* Integrated temperature sensor

* Small footprint