Datasheet for HMC985A:
- Manufacturer Part Number : HMC985A
- Manufacturer : AD
- Description : GaAs MMIC Voltage-Variable Attenuator, 20 - 50 GHz IC
- Series : HMC985A-Die
- Reference Price : USD 0
- Our Price : We have a better price, contact us by email
- Product Type : Attenuators
- Function : Voltage Variable Attenuators
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : CHIPS OR DIE
- Pins : 0
- MFG Package Case : X
- Part Type : OTH
- Standard Packing Type : Tray
- Standard Packing Quantity : 25
- Working Temperature : -55 to 85C
- Other Part Number : HMC985A
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- Wide Bandwidth: 20 - 50 GHz
- Excellent Linearity: +30 dB Input IP3
- Wide Attenuation Range: 35 dB
- Die Size: 2.78 x 1.37 x 0.1 mm
The HMC985A is an absorptive Voltage Variable Attenuator (VVA) which operates from 20 - 50 GHz and is ideal in designs where an analog DC control signal must be used to control RF signal levels over a 35 dB dynamic range. It features two shunt-type attenuators which are controlled by two analog voltages, Vctrl1 and Vctrl2. Optimum linearity performance of the attenuator is achieved by first varying Vctrl1 of the first attenuation stage from -5V to 0V with Vctrl2 fixed at -5V. The control voltage of the second attenuation stage, Vctrl2, should then be varied from -5V to 0V with Vctrl1 fixed at 0V.
Furthermore, if the Vctrl1 and Vctrl2 pins are connected together it is possible to achieve the full analog attenuation range with only a small degradation in input IP3 performance. Applications include AGC circuits and temperature compensation of multiple gain stages in microwave point to point and VSAT radios.
Applications:
- Point-to-Point Radio
- VSAT Radio
- Test Instrumentation
- Microwave Sensors
- Military, ECM & Radar
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.