2 GHz to 6 GHz, 25 W
Power Amplifier Module
Data Sheet
HMC7748
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
rights of third parties that may result from its use. Specifications subject to change without notice. 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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2016 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
58 dB typical small signal gain
43 dBm typical saturated output power
48 dBm typical output IP3
6 dB maximum noise figure
Operates from 12 V and 28 V supplies
Built-in bias sequencing
Enable pin to provide shutdown capability
APPLICATIONS
Telecom infrastructure
Test instrumentation
Military
FUNCTIONAL BLOCK DIAGRAM
12949-001
REGULATION
AND
BIAS SEQUENCING
BIAS
SEQUENCING
28V12V
EN
RF IN RF OUT
GND
HMC7748
Figure 1.
GENERAL DESCRIPTION
The HMC7748 is a multistage power amplifier (PA) that
provides 25 W of saturated output power across the band of
2 GHz to 6 GHz. It draws 0.7 A from a 12 V supply and up to
4 A from a 28 V supply. Input signals of as much as −8 dBm are
acceptable, and the module has small signal gain of 60 dB.
The 12 V supply is regulated internally and generates the
negative voltage required for the gate bias. Built-in bias sequencing
prevents the drain voltages for the amplifier stages from being
applied without the negative voltage present, which protects the
amplifiers if 28 V is applied without 12 V supply applied.
An external enable pin causes the module to remain in shutdown
mode unless the pin is pulled to ground. This pin provides a
means of turning the amplifiers off and on without cycling the
power supplies.
