HMC941ALP4E* Product Page Quick Links
Last Content Update: 11/01/2016
Comparable Parts
View a parametric search of comparable parts
Documentation
Data Sheet
•HMC941ALP4E: 0.5 dB LSB GaAs MMIC 5-Bit Digital
Attenuator, 0.1 - 33 GHz Data Sheet
Design Resources
•HMC941ALP4E Material Declaration
•PCN-PDN Information
•Quality And Reliability
•Symbols and Footprints
Discussions
View all HMC941ALP4E EngineerZone Discussions
Sample and Buy
Visit the product page to see pricing options
Technical Support
Submit a technical question or find your regional support
number
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.
THIS PAGE INTENTIONALLY LEFT BLANK
Preliminary
AT TENUATORS - SM T
1
HMC941ALP4 / 941ALP4E
v00.1115
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 33 GHz
Electrical Specications, TA = +25° C, With Vdd = +5V, Vss = -5V, P0 - P4 = 0/ +5V
Typical Applications
The HMC941ALP4 / HMC941ALP4E is ideal for:
• Fiber Optics & Broadband Telecom
• Microwave Radio & VSAT
• Military Radios, Radar & ECM
• Space Applications
• Sensors
• Test & Measurement Equipment
0.5 dB LSB Steps to 15.5 dB
Single Positive Control Line Per Bit
±0.5 dB Typical Bit Error
High Input IP3: +45 dBm
16mm2 Leadless SMT Plastic Package
The HMC941ALP4 & HMC941ALP4E are broadband 5-bit
GaAs IC digital attenuators in low cost leadless sur-
face mount packages. Covering 0.1 to 33.0 GHz, the
insertion loss is less than 4 dB typical. The attenuator
bit values are 0.5 (LSB), 1, 2, 4, 8, for a total attenu-
ation of 15.5 dB. Attenuation accuracy is excellent
at ±0.3 dB typical step error with an IIP3 of +45 dBm.
Five control voltage inputs, toggled between +5V and
0V, are used to select each attenuation state.
Parameter Frequency (GHz) Min. Typ. Max. Units
Insertion Loss
0.1 - 18.0 GHz
18.0 - 26.5 GHz
26.5 - 33.0 GHz
3.0
4.0
5.0
4.5
6.0
6.5
dB
dB
Attenuation Range 0.1 - 33.0 GHz 15.5 dB
Return Loss (RF1 & RF2, All Atten. States) 0.1 - 33.0 GHz 12 dB
Attenuation Accuracy: (Referenced to Insertion Loss)
0.5 - 7.5 dB States
8 - 15.5 dB States
0.1 - 33.0 GHz
0.1 - 33.0 GHz
± (0.3 + 4%) of Atten. Setting Max
± (0.3 + 8%) of Atten. Setting Max
dB
dB
Input Power for 0.1 dB Compression 0.1 - 0.5 GHz
0.5 - 33.0 GHz
22
27
dBm
dBm
Input Third Order Intercept Point
(Two-Tone Input Power= 0 dBm Each Tone)
0.1 - 0.5 GHz
0.5 - 33.0 GHz
42
45
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON/tOFF (50% CTL to 10/90% RF)
0.1 - 33.0 GHz
60
90
ns
ns
Idd 0.1 - 33.0 GHz 2.5 4.5 6.5 mA
Iss 0.1 - 33.0 GHz -7. 0 -5.0 -3.0 mA
General Description
Features
Functional Diagram
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.
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
Preliminary
AT TENUATORS - SM T
2
0.5 dB LSB GaAs MMIC 5-BIT DIGITAL
ATTENUATOR, 0.1 - 33 GHz
Control Voltage
Bias Voltages & Currents
Absolute Maximum Ratings
State Bias Condition
Low 0 to 0.8V @ 1 µA
High 2 to 5V @ 1 µA
Vdd +5V @ 4.5 mA
Vss -5V @ 5 mA
RF Input Power (0.1 to 33.0 GHz) +27 dBm
Control Voltage (P0 to P4) Vdd + 0.5V
Vdd +7 Vdc
Vss -7 Vdc
Channel Temperature 150 °C
Continuous Pdiss (T = 85 oC)
(derate 6.8 mW/oC above 85 oC) 0.445 W
Thermal Resistance 146 °C/W
Storage Temperature -65 to + 150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED
L AND PATT ERN .
v00.1115
HMC941ALP4 / 941ALP4E
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
Truth Table
Control Voltage Input Attenuation
State
RF1 - RF2
P4
8 dB
P3
4 dB
P2
2 dB
P1
1 dB
P0
0.5 dB
High High High High High Reference I.L.
High High High High Low 0.5 dB
High High High Low High 1 dB
High High Low High High 2 dB
High Low High High High 4 dB
Low High High High High 8 dB
Low Low Low Low Low 15.5 dB
Any Combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
Preliminary
