17.7 GHz to 19.7 GHz, Low Noise Amplifier Data Sheet ADL5725 FEATURES FUNCTIONAL BLOCK DIAGRAM Frequency range: 17.7 GHz to 19.7 GHz ADL5725 VCC1 VCC2 Typical gain of >25.1 dB GND OUTN 50 100 Low noise input SINGLE-ENDED DIFFERENTIAL INPT OUTP Noise figure: 2.4 dB typical RBIAS High linearity input DNC >1.5 dBm typical input third-order intercept (IIP3) DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN. 11.5 dBm input 1 dB compression point (P1dB) at 19.7 GHz Figure 1. Matched 50 single-ended input Matched 100 differential outputs 8-lead, 2.00 mm 2.00 mm LFCSP microwave packaging APPLICATIONS Point to point microwave radios Instrumentation Satellite communications (SATCOM) Phased arrays GENERAL DESCRIPTION The ADL5725 is a narrow-band, high performance, low noise This low noise amplifier provides noise figure performance that, in amplifier (LNA) targeting microwave radio link receiver designs. the past, required more expensive three-five (III-V) compounds The monolithic silicon germanium (SiGe) design is optimized for process technology to achieve. microwave radio link bands ranging from 17.7 GHz to 19.7 GHz. The ADL5721 and ADL5723 to ADL5726 family of narrow-band The unique design offers a single-ended 50 input impedance LNAs are each packaged in a tiny, thermally enhanced, 2.00 mm and provides a 100 balanced differential output that is ideal for 2 mm LFCSP package. The ADL5721 and ADL5723 to ADL5726 driving Analog Devices, Inc., differential downconverters and radio family operates over the temperature range of 40C to +85C. frequency (RF) sampling analog-to-digital converters (ADCs). Rev. 0 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. No Tel: 781.329.4700 2016 Analog Devices, Inc. All rights reserved. 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 14318-001ADL5725 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................6 Applications ....................................................................................... 1 Theory of Operation .........................................................................8 Functional Block Diagram .............................................................. 1 Applications Information .................................................................9 General Description ......................................................................... 1 Layout .............................................................................................9 Revision History ............................................................................... 2 Differential vs. Single-Ended Output .........................................9 Specifications ..................................................................................... 3 Evaluation Board ............................................................................ 10 AC Specifications .......................................................................... 3 Initial Setup ................................................................................. 10 DC Specifications ......................................................................... 3 Results .......................................................................................... 10 Absolute Maximum Ratings ............................................................ 4 Basic Connections for Operation ............................................. 11 Thermal Resistance ...................................................................... 4 Outline Dimensions ....................................................................... 12 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 12 Pin Configuration and Function Descriptions ............................. 5 REVISION HISTORY 4/16Revision 0: Initial Version Rev. 0 Page 2 of 12