Details, datasheet, quote on part number: HMC939ALP4E
CategorySemiconductors => RF Integrated Circuits => 8826778
TitleAttenuators attenuator

Analog Devices HMC939A is designed as a 5-bit broadband GaAs IC digital attenuator MMIC chip. Operating from 0.1 to 40GHz, the HMC939A has a typical insertion loss of less than 5dB. The device features attenuator bit values of 1.0 (LSB), 2, 4, 8, 16 for a total attenuation of 31dB. HMC939A achieves excellent attenuation accuracy at less than ±1.0dB typical step error and an IIP3 of +43dBm. HMC939As five control voltage inputs, which can toggle between +5V and 0V, are select each attenuation state.

CompanyAnalog Devices
DatasheetDownload HMC939ALP4E datasheet
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Maximum Attenuation31 dB
Maximum Frequency33 GHz
Number of Bits5 bit
Number of Channels1 Channel
Impedance50 Ohms
Maximum VSWR-
Attenuator Step Size1 dB
Maximum Operating Temperature+ 85 C
Minimum Operating Temperature- 40 C
HMC939ALP4E photo

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Features, Applications

Typical Applications

The HMC939ALP4E is ideal for: Fiber Optics & Broadband Telecom Microwave Radio & VSAT Military Radios, Radar & ECM Space Applications Sensors Test & Measurement Equipment


1.0 dB LSB Steps 31 dB Single Positive Control Line Per Bit ±1.0 dB Typical Bit Error High Input IP3: +43 dBm 16mm2 Leadless SMT Plastic Package

The HMC939ALP4E is broadband 5-bit GaAs IC digital attenuator in low cost leadless surface mount packages. Covering to 33.0 GHz, the insertion loss is less than 5 dB typical. The attenuator bit values are 1.0 (LSB), for a total attenuation of 31 dB. Attenuation accuracy is excellent ±0.4 dB typical step error with of +43 dBm. Five control voltage inputs, toggled between +5V and 0V, are used to select each attenuation state.

Input Power for 0.1 dB Compression Input Third Order Intercept Point (Two-Tone Input Power= 8 dBm Each Tone) Switching Characteristics

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 Application Support: Phone: 1-800-ANALOG-D

HMC939ALP4E Material Declaration PCN-PDN Information Quality And Reliability Symbols and Footprints

Data Sheet 1.0 dB LSB GaAs MMIC 5-Bit Digital Attenuator, - 33 GHz Data Sheet
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