HMC712ALP3CE
v02.0617
GaAs MMIC VOLTAGE-VARIABLE
ATTENUATOR, 5 - 26.5 GHz
Typical Applications
Features
Wide Bandwidth: 5 - 26.5 GHz
Excellent Linearity: +28 dBm Input P1dB
Wide Attenuation Range: 28 dB
Absorptive Topology
The HMC712ALP3CE is ideal for:
• Point-to-Point Radio
• VSAT Radio
• Test Instrumentation
• Microwave Sensors
• Military, ECM & Radar
Singe or Dual Control Operation
16 Lead 3x3mm SMT Package: 9mm²
Functional Diagram
General Description
The HMC712ALP3CE is an absorptive Voltage Var-
iable Attenuator (VVA) which operates from 5 - 26.5
GHz and is ideal in designs where an analog DC
control signal must be used to control RF signal
levels over a 28 dB amplitude range. It features two
shunt-type attenuators which are controlled by two
analog voltages, Vctrl1 and Vctrl2. Optimum linearity
performance of the attenuator is achieved by first
varying Vctrl1 of the 1st attenuation stage from -5V
to 0V with Vctrl2 fixed at -5V. The control voltage of
the 2nd attenuation stage, Vctrl2, should then be
varied from -5V to 0V, with Vctrl1 fixed at 0V. The
HMC712ALP3CE is housed in a RoHS compliant
3x3 mm QFN leadless package
Furthermore, if the Vctrl1 and Vctrl2 pins are
connected together it is possible to achieve the
full analog attenuation range with only a small
degradation in input IP3 performance. Applications
include AGC circuits and temperature compensation
of multiple gain stages in microwave point-to-point and
VSAT radios.
Electrical Specifications, TA = +25° C, 50 Ohm system
Parameter
Min.
Typ.
Max.
Units
5 - 10 GHz
10 - 15 GHz
15 - 26.5 GHz
2.3
3
4.2
3.5
4
5.7
dB
dB
dB
Insertion Loss
5 - 10 GHz
10 - 15 GHz
15 - 26.5 GHz
19
21
23
27
32
37
dB
dB
dB
Attenuation Range
Input Return Loss
12
10
28
dB
dB
Output Return Loss
Input Power for 1 dB Compression (any attenuation)
dBm
Input Third Order Intercept
(Two-tone Input Power = 10 dBm Each Tone)
32
dBm
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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.
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For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
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