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  • HMC985A

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Attenuators Attenuators

Manufacturer : Analog Devices, Inc
Package/Case : Die
Product Categories : RF Integrated Circuits
Datasheet: HMC985A Datasheet (PDF)
RoHs Status: Pb-free Halide free
In-stock: 1215


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HMC985A Product Details

Analog Devices HMC985A Attenuators are absorptive GaAs MMIC Voltage Variable Attenuators (VVA) capable of operating from 10GHz - 50GHz. The attenuators are ideal for applications in which an analog DC control signal is used to control RF signal levels over a 35dB-40dB dynamic range. HMC985A includes two shunt-type attenuators controlled by two analog voltages, Vctl1 and Vctl2. Adjusting the Vctl1 of the first attenuation stage from -5V to 0V with Vctl2 fixed at -5V achieves excellent linearity performance at +32dB Input IP3. Connecting the Vctrl1 and Vctrl2 pins enable the attenuators to deliver the full analog attenuation range with only a small degradation in input IP3 performance.


  • Wide Bandwidth: 20 - 50 GH z
  • Excellent Linearity: +30 dB Input IP 3
  • Wide Attenuation Range: 35 dB
  • Die Size: 2.78 x 1.37 x 0.1 mm


  • Point-to-Point Radio
  • VSAT Radio
  • Test Instrumentation
  • Microwave Sensors
  • Military, ECM & Radar

HMC985A Block Diagram
(Picture: Diagram)

Technical Parameters

  • Maximum Attenuation
  • 35 dB
  • Maximum Frequency
  • 50 GHz
  • Number of Channels
  • 1 Channel
  • Impedance
  • Package/Case
  • DIE
  • Minimum Operating Temperature
  • - 40 C
  • Maximum Operating Temperature
  • + 85 C

HMC985A Datasheet

  • HMC985A-Die Technical Documentation/Data sheet

HMC985A Related Products

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Estimated Delivery Time: Dec 05 - Dec 10 days (choose Expedited at checkout).

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    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

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    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

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  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

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    Step5: Packaging Boxes

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that HMC985A is the original manufacturer or agent of ADI?
We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their HMC985A devices; we pay more attention to the channels and quality of HMC985A products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of HMC985A chips? Including ADI original factory information, RF Integrated Circuits application, HMC985A pictures?
You can use Jotrin's intelligent search engine, or filter by Attenuators ; Voltage Variable Attenuators category, or find it through Analog Devices, Inc Information page.
Q: Are the ADI's HMC985A price and stock displayed on the platform accurate?
The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for HMC985A, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of HMC985A?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the HMC985A we delivered, we will accept the replacement or return of the HMC985A only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of HMC985A.
(3)The HMC985A is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as HMC985A datasheet pdf, HMC985A-Die pin diagram?
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Analog Devices, Inc

Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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