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AD8318 - Logarithmic Detector/Controller

Datasheet Summary

Description

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.

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 LFCSP.
  • Power-down feature:.

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Datasheet preview – AD8318

Datasheet Details

Part number AD8318
Manufacturer Analog Devices
File Size 2.82 MB
Description Logarithmic Detector/Controller
Datasheet download datasheet AD8318 Datasheet
Additional preview pages of the AD8318 datasheet.

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Full PDF Text Transcription

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Data Sheet AD8318 1 MHz to 8 GHz, 70 dB Logarithmic Detector/Controller 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 LFCSP ► Power-down feature: <1.5 mW at 5 V ► Single-supply operation: 5 V at 68 mA ► Fabricated using high speed SiGe process APPLICATIONS ► RF transmitter PA setpoint control and level monitoring ► RSSI measurement in base stations, WLAN, WiMAX, and radars GENERAL DESCRIPTION The AD8318 is a demodulating logarithmic amplifier, capable of accurately converting an RF input signal to a corresponding decibel-scaled output voltage.
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