ATTENUATORS - ANALOG - SMT
1
HMC291SE
v05.1216
4 dB LSB SILICON 2-BIT POSITIVE CONTROL
DIGITAL ATTENUATOR, 0.7 - 4.0 GHz
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
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. Specications 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.
General Description
Features
Functional Diagram
RoHS Compliant Product
4 dB LSB Steps to 12 dB
Single Positive Control Per Bit, 0/+3V or +5V
Typical Step Error : ±0.3 dB
Miniature SOT 26 Package: 9 mm2
Electrical Specications,
TA = +25°C, VDD = +3V to +5V & VCTL = 0/VDD (Unless Otherwise Stated)
Typical Applications
The HMC291SE is a general purpose broadband
2-bit positive control silicon IC digital attenuator in
6 lead SOT26 surface mount plastic package. The
insertion loss is typically in between 0.4 dB - 1 dB
through operating frequency range. The attenuator
bit values are 4 (LSB) and 8 dB for a total attenuation
of 12 dB. State error is excellent at ± 0.4 dB typical
with an IIP3 of up to 57 dBm. Two bit control voltage
inputs, toggled between 0V and +3V or +5V, are used
to select each attenuation state at less than 25 µA
each. A single VDD supply voltage of +3V to +5V
applied through an external 4.7K Ohm resistor is
required.
The HMC291SE is ideal for:
• Cellular
• PCS, ISM, MMDS
• WLL Handset & Base Station
Parameter Frequency Min. Typical Max. Units
Insertion Loss 0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
0.5
0.5
0.6
0.8
0.65
0.65
0.7
1.32
dB
dB
dB
dB
Attenuation Range 0.7 - 4.0 GHz 12 dB
Return Loss
(RF1 & RF2, All Atten. States)
0.7 - 1.4 GHz
1.4 - 4.0 GHz
20
17
25
27
dB
dB
State Error
All Attenuation States
All Attenuation States
All Attenuation States
All Attenuation States
0.7 - 1.4 GHz
1.4 - 2.3 GHz
2.3 - 2.7 GHz
2.7 - 4.0 GHz
± (0.1 + 4% of Atten. Setting Max)
± (0.2 + 2% of Atten. Setting Max)
± (0.4 + 3% of Atten. Setting Max)
± (0.4 + 4% of Atten. Setting Max)
dB
dB
dB
dB
Input Power for 0.1 dB Compression (Input P0.1dB) 5V[1]
3V
0.7 - 4.0 GHz 28
27
dBm
dBm
Input Third Order Intercept Point (IIP3)
(Two-tone Input Power = 15 dBm Each Tone)
5V
3V
0.7 - 4.0 GHz 52
52
57
54
59
56
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
0.7 - 4.0 GHz
250
300
ns
ns
[1] Compression point is above maximum input power
HMC291S* PRODUCT PAGE QUICK LINKS
Last Content Update: 11/29/2017
COMPARABLE PARTS
View a parametric search of comparable parts.
EVALUATION KITS
•HMC291S Evaluation Board
DOCUMENTATION
Data Sheet
•HMC291SE: 4 dB LSB Slilcon 2-Bit Positive Control Digital
Attenuator, 0.7 - 4.0 GHz Preliminary Data Sheet
TOOLS AND SIMULATIONS
•HMC291S S-Parameters
REFERENCE MATERIALS
Product Selection Guide
•RF, Microwave, and Millimeter Wave IC Selection Guide
2017
DESIGN RESOURCES
•HMC291S Material Declaration
•PCN-PDN Information
•Quality And Reliability
•Symbols and Footprints
DISCUSSIONS
View all HMC291S 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.
DOCUMENT FEEDBACK
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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
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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
ATTENUATORS - ANALOG - SMT
2
HMC291SE
v05.1216
4 dB LSB SILICON 2-BIT POSITIVE CONTROL
DIGITAL ATTENUATOR, 0.7 - 4.0 GHz
State Error vs. Attenuation State
Return Loss RF1, RF2 Insertion Loss
Normalized Attenuation vs. Attenuation State
Step Error vs. Frequency Relative Phase vs. Frequency
-1.5
-1
-0.5
0
0.5 1 1.5 2 2.5 3 3.5 4
+25C +85C -40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
-20
-10
0
10
20
30
40
50
60
4 dB 8 dB 12 dB
0.511.522.533.54
RELATIVE PHASE (deg.)
FREQUENCY (GHz)
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.5 1 1.5 2 2.5 3 3.5 4
4 dB 8 dB 12 dB
STEP ERROR (dB)
FREQUENCY (GHz)
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.5 1 1.5 2 2.5 3 3.5 4
4 dB 8 dB 12 dB
STATE ERROR (dB)
FREQUENCY (GHz)
-14
-12
-10
-8
-6
-4
-2
0
0.5 1 1.5 2 2.5 3 3.5 4
4 dB 8 dB 12 dB
NORMALIZED ATTENUATION (dB)
FREQUENCY (GHz)
-45
-40
-35
-30
-25
-20
-15
-10
0.5 1 1.5 2 2.5 3 3.5 4
RF1 - IL
RF1 - 4 dB
RF1 - 8 dB
RF1 - 12 dB
RF2 - IL
RF2 - 4 dB
RF2 - 8 dB
RF2 - 12 dB
RETURN LOSS (dB)
FREQUENCY (GHz)
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
ATTENUATORS - ANALOG - SMT
3
HMC291SE
v05.1216
4 dB LSB SILICON 2-BIT POSITIVE CONTROL
DIGITAL ATTENUATOR, 0.7 - 4.0 GHz
IIP3 vs. Frequency at 5V over
Temperature
Input P0.1dB vs. Frequency at 5V over
Temperature[1]
Input P0.1dB vs. Frequency at 3V over
Temperature
IIP3 vs. Frequency at 3V over
Temperature
20
21
22
23
24
25
26
27
28
29
30
+25C +85C -40C
0.7 1 1.3 1.6 1.9 2.2 2.5 2.8 3.1 3.4 3.7 4
INPUT COMPRESSION (dBm)
FREQUENCY (GHz)
20
21
22
23
24
25
26
27
28
29
30
+25C +85C -40C
0.7 1 1.3 1.6 1.9 2.2 2.5 2.8 3.1 3.4 3.7 4
INPUT COMPRESSION (dBm)
FREQUENCY (GHz)
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
+25C +85C -40C
0.7 1 1.3 1.6 1.9 2.2 2.5 2.8 3.1 3.4 3.7 4
IIP3 (dBm)
FREQUENCY (GHz)
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
+25C +85C -40C
0.7 1 1.3 1.6 1.9 2.2 2.5 2.8 3.1 3.4 3.7 4
IIP3 (dBm)
FREQUENCY (GHz)
[1] Input P0.1dB is limited by maximum test power of 28 dBm.
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
ATTENUATORS - ANALOG - SMT
4
HMC291SE
v05.1216
4 dB LSB SILICON 2-BIT POSITIVE CONTROL
DIGITAL ATTENUATOR, 0.7 - 4.0 GHz
Application Circuit
DC blocking capacitors C1 and C2 are required on RF1
and RF2. Choose C1 = C2 = 100 ~ 300 pF to allow
lowest frequency of operation to pass with minimal loss.
R1 = 4.7K Ohm is required to supply voltage to the circuit
through either PIN 3 or PIN 1.
The circuit board used in the application should use
RF circuit design techniques. Signal lines should
have 50 Ohm impedance while the package ground
leads should be connected directly to the ground
plane similar to that shown. A sufficient number
of via holes should be used to connect the top and
bottom ground planes. The evaluation circuit board
as shown is available from Analog Devices upon
request.
List of Materials for Evaluation PCB EV1HMC291SE [1]
Item Description
J1 - J2 PCB Mount SMA Connector
J5 - J8 DC Pin
R1 4.7 kOhm Resistor, 0402 Pkg.
C1, C2 0402 Pkg. Capacitor, Select for Lowest
Frequency of Operation
C3 1 nF capacitor, 0402 Pkg.
U1 HMC291SE Digital Attenuator
PCB [2] 103370 Evaluation PCB 1.5” x 1.5”
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
Evaluation Circuit Board
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
ATTENUATORS - ANALOG - SMT
5
HMC291SE
v05.1216
4 dB LSB SILICON 2-BIT POSITIVE CONTROL
DIGITAL ATTENUATOR, 0.7 - 4.0 GHz
Control & Bias VoltagesTruth Table
Absolute Maximum Ratings
Outline Drawing
Control Voltage Input (VCTL) Attenuation
Setting
RF1 - RF2
V1
8 dB
V2
4 dB
High High Reference I.L.
High Low 4 dB
Low High 8 dB
Low Low 12 dB
Max. Atten.
Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.
State Bias Condition
Low 0 to +0.2V at 500 µA Max.
High VDD ± 0.2V at 550 µA Max.
Note: VDD = +3V to 5V with ± 0.2V tolerance
Control Voltage (V1, V2) VDD + 0.5 VDC
RF Input Power +28 dBm
Bias Voltage (VDD) +8.0 Vdc
Storage Temperature -65°C to +150°C
Operating Temperature -40°C to +85°C
ESD Sensitivity (HBM) Class 1C
ESD Sensitivity (FICDM) Class IV
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED PLASTIC SILICA AND
SILICON IMPREGNATED.
2. LEAD MATERIAL: COPPER ALLOY.
3. LEAD PLATING: 100% MATTE TIN.
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. CHARACTERS TO BE HELVETICA MEDIUM, .030 HIGH, LASER OR WHITE INK,
LOCATED
APPROXIMATELY AS SHOWN.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
7. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
8. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND.
Package Information
Part Number Package Body Material Lead Finish MSL Rating Package Marking [1]
HMC291SE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] 291S
XXXX
[1] XXXX 4 digit lot number is on the bottom of package
[2] Max peak reow temperature of 260°C