DC to 6 GHz Envelope and TruPwr RMS Detector Data Sheet ADL5511 FEATURES FUNCTIONAL BLOCK DIAGRAM VPOS Envelope tracking RF detector with output proportional to 15 input voltage ADL5511 20pF Separate TruPwr rms output 400 BIAS AND POWER- ENBL 4 14 FLT4 DOWN CONTROL No balun or external tuning required Excellent temperature stability 100 G = 1.7 11 VRMS RMS Input power dynamic range of 47 dB RFIN 2 Input frequency range from dc to 6 GHz 250 10k ENVELOPE G = 1.5 10 VENV 130 MHz envelope bandwidth FLT1 3 5pF Envelope delay: 2 ns 250 9 EREF Single-supply operation: 4.75 V to 5.25 V 400 0.8pF 0.4pF Supply current: 21.5 mA VPOS VPOS Power-down mode: 130 W 13 6 7 8 12 16 1 5 FLT2 COMM FLT3 NC APPLICATIONS Figure 1. RMS power and envelope detection of W-CDMA, CDMA2000, LTE, and other complex waveforms CH1 HIGH Drain modulation based power amplifier linearization VRMS 20mV Power amplifier linearization employing envelope-tracking methods VENV RF INPUT CH1 200mV CH2 30.8mV M 100ns A CH4 1.60V CH3 200mV CH4 234mV T 68ns Figure 2. RMS and Envelope Response to a 20 MHz QPSK-Based LTE Carrier (Test Model E-TM1 1 20MHz) GENERAL DESCRIPTION The ADL5511 is an RF envelope and TruPwr rms detector. The ADL5511 can operate from dc to 6 GHz on signals with The envelope output voltage is presented as a voltage that is envelope bandwidths up to 130 MHz. proportional to the envelope of the input signal. The rms The extracted envelope can be used for RF power amplifier output voltage is independent of the peak-to-average ratio (PA) linearization and efficiency enhancements and the rms of the input signal. output can be used for rms power measurement. The high rms The rms output is a linear-in-V/V voltage with a conversion accuracy and fast envelope response are particularly useful for gain of 1.9 V/V rms at 900 MHz. The envelope output has a envelope detection and power measurement of broadband, high conversion gain of 1.46 V/V at 900 MHz and is referenced to peak-to-average signals that are used in CDMA2000, W-CDMA, an internal 1.1 V reference voltage, which is available on the and LTE systems. EREF pin. The ADL5511 operates from 40C to +85C and is available in a 16-lead, 3 mm 3 mm LFCSP package. Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. Tel: 781.329.4700 20112017 Analog Devices, Inc. All rights reserved. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 09602-002 09602-001ADL5511* PRODUCT PAGE QUICK LINKS Last Content Update: 07/14/2017 COMPARABLE PARTS DESIGN RESOURCES View a parametric search of comparable parts. ADL5511 Material Declaration PCN-PDN Information EVALUATION KITS Quality And Reliability ADL5511 Evaluation Board Symbols and Footprints DOCUMENTATION DISCUSSIONS Data Sheet View all ADL5511 EngineerZone Discussions. ADL5511: DC to 6 GHz Envelope and TruPwr RMS Detector Data Sheet SAMPLE AND BUY User Guides Visit the product page to see pricing options. UG-312: ADL5511-EVALZ: Evaluation Board TECHNICAL SUPPORT REFERENCE MATERIALS Submit a technical question or find your regional support Product Selection Guide number. RF Source Booklet DOCUMENT FEEDBACK Submit feedback for this data sheet. This page is dynamically generated by Analog Devices, Inc., and inserted into this data sheet. A dynamic change to the content on this page will not trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently modified.