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ATTENUATORS - DIGITAL - SMT
5
5 - 36
HMC290 / 290E
2 dB LSB GaAs MMIC 2-BIT DIGITAL
ATTENUATOR, 0.7 - 4.0 GHz
v01.0605
General Description
Features
Functional Diagram
2 dB LSB Steps to 6 dB
Single Positive Control Per BIT
±0.2 dB Typical Bit Error
Miniature SOT 26 Package: 9 mm
2
Electrical Speci cations,
T
A
= +25° C, Vdd = +3V to +5V & Vctl = 0/Vdd (Unless Otherwise Stated)
Typical Applications
The HMC290 & HMC290E are broadband 2 - bit
positive control GaAs IC digital attenuators in 6 lead
SOT26 surface mount plastic packages. Covering 0.7
to 4 GHz, the insertion loss is typically less than 0.7
dB. The attenuator bit values are 2 (LSB) and 4 dB for
a total attenuation of 6 dB. Accuracy is excellent at ±
0.2 dB typical with an IIP3 of up to +52 dBm. Two bit
control voltage inputs, toggled between 0 and +3 to
+5 volts, are used to select each attenuation state at
less than 50 uA each. A single Vdd bias of +3 to +5
volts applied through an external 5K Ohm resistor is
required. Occupying less than 9 mm, this is the small-
est 2 - bit digital attenuator available.
The HMC290 / HMC290E is ideal for:
• Cellular
• PCS, ISM, MMDS
• WLL Handset & BaseStation
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
0.7
0.8
0.9
1.2
dB
dB
dB
dB
Attenuation Range 0.7 - 4.0 GHz 6 dB
Return Loss (RF1 & RF2, All Atten. States)
0.7 - 2.7 GHz
2.7 - 4.0 GHz
16
15
20
18
dB
dB
Attenuation Accuracy: (Referenced to Insertion Loss)
2, 4 dB States
6 dB States
0.7 - 4.0 GHz
0.7 - 4.0 GHz
± 0.2 + 2% of Atten. Setting Max
± 0.3 + 2% of Atten. Setting Max
dB
dB
Input Power for 0.1 dB Compression
5V
3V
0.7 - 4.0 GHz 27
24
dBm
dBm
Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)
5V
3V
0.7 - 4.0 GHz 52
50
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
0.7 - 4.0 GHz 400
420
ns
ns
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
