Add to Signal Chain Designer

ADL5511:  DC to 6 GHz ENVELOPE AND TruPwr™ RMS Detector

Product Details

Product Status:Recommended for New Designs

The ADL5511 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 1.9 V/V rms at 900 MHz. The envelope output has a conversion gain of 1.46 V/V at 900 MHz and is referenced to an internal 1.1 V reference voltage, which is available on the EREF pin.

The ADL5511 can operate from dc to 6 GHz on signals with envelope bandwidths up to 130 MHz.

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.

The ADL5511 operates from −40°C to +85°C and is available in a 16-lead, 3 mm × 3 mm LFCSP package.


  • 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


  • 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 47 dB
  • Input frequency range from dc to 6 GHz
  • 130 MHz envelope bandwidth
  • Envelope delay: 2 ns
  • Single-supply operation: 4.75 V to 5.25 V
  • Supply current: 21.5 mA
  • Power-down mode: 130 μW

Functional Block Diagram for ADL5511


Title Content Type File Type
ADL5511: DC to 6 GHz Envelope and TruPwr RMS Detector Data Sheet (Rev B, 05/2014) (pdf, 435 kB) Data Sheets PDF
UG-312: ADL5511-EVALZ: Evaluation Board  (pdf, 140 kB) User Guides PDF
RF Source Booklet  (PDF, 4353 kB)
RF IC Product Overview - Version P (02/2014)
Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADL5511 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
ADL5511-EVALZ Status: Production Evaluation Board $100.19 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

View Sales and Distribution Offices

content here.
content here.

Review this Product