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Home » NEWEST Products » New by Manufacturer » Analog Devices Inc. » ADL5511 RF RMS Detector - Analog Devices
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Analog Devices ADL5511 RF RMS Detector

Analog Devices ADL5511 RF RMS Detector

Analog Devices ADL5511 RF RMS Detector is an RF envelope and TruPwr™ rms detector. The envelope output voltage is presented as a voltage that is proportional to the envelope of the input signal. The rms output voltage is independent of the peak-to-average ratio of the input signal. The rms output is a linear-in-V/V voltage with a conversion gain of 1.9V/Vrms at 900MHz. The envelope output has a conversion gain of 1.46V/V at 900MHz and is referenced to an internal 1.1V reference voltage, which is available on the EREF pin. The ADL5511 can operate from dc to 6GHz on signals with envelope bandwidths up to 130MHz. The extracted envelope can be used for RF power amplifier (PA) linearization and efficiency enhancements and the rms output can be used for rms power measurement. The high rms accuracy and fast envelope response are particularly useful for envelope detection and power measurement of broadband, high peak-to-average signals that are used in CDMA2000, W-CDMA, and LTE systems.

Features
  • Envelope tracking RF detector with output proportional to input voltage
  • Separate TruPwr rms output
  • No balun or external tuning required
  • Excellent temperature stability
  • Input power dynamic range of 47dB
  • Input frequency range from dc to 6GHz
  • 130MHz envelope bandwidth
  • Envelope delay: 2ns
  • Single-supply operation: 4.75V to 5.25V
  • Supply current: 21.5mA
  • Power-down mode: 130μW
Applications
  • RMS power and envelope detection of W-CDMA, CDMA2000, LTE, and other complex waveforms
  • Drain modulation based power amplifier linearization
  • Power amplifier linearization employing envelope-tracking methods
Block Diagram
Block Diagram
  • Analog Devices Inc.