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Analog Devices Offer 44 GHz Silicon Switches with Industry’s Lowest Insertion-Loss in Compact Land Grid Array Package

Energy Metering IC

Analog Devices has released two 44 GHz single-pole, double-throw (SPDT) switches, the ADRF5024 and ADRF5025 in advanced Silicon-on-Insulator (SOI) technology. The two new switches are broadband, with the ADRF5024 yielding flat frequency response from 100 MHz to 44 GHz, while the ADRF5025 from 9 kHz to 44 GHz, with repeatable characteristics better than 1.7 dB insertion loss and 35 dB channel to channel isolation. Both parts support 27 dBm power handling for both through and hot-switching conditions.

The new switches come in a compact, highly reliable, 2.25 mm x 2.25 mm surface-mount-technology (SMT) compatible package, exhibiting electrical performance beyond incumbent solutions, which will benefit radio frequency (RF) and microwave design experts, saving bias power, eliminating peripheral components and achieving higher integration in systems such as phased arrays, portable instrumentation, high resolution body scanners and next generation millimeter-wave communication infrastructure for emerging 5G and high-constellation satellite networks.

The ADRF5024 and ADRF5025 employ inherent reflective architecture and are characterized for operating temperature range of –40°C to 105°C. All pins incorporate robust Electro-Static-Discharge (ESD) protection. The devices are nominally powered by ±3.3 V, drawing low supply current of less than 120 µA typical. The devices use standard positive logic control voltages, simplifying the interface design.

The ADRF5024 and ADRF5025 are ideal replacements for PIN diode-based counterparts, as no external components are necessary for bias generation or matching, and signal pins are internally biased at ground (GND) reference to eliminate the need for direct-current (DC) blocking capacitors.

The ADRF5024 is optimized for fast switching applications with speeds less than 10 ns and edge rates at 2 ns. Whereas the ADRF5025 is optimized for ultrawideband applications with good low frequency characteristics down to 9 kHz. The other characteristics are the same so the parts are drop-in alternative to each other and can be used interchangeably on the same printed circuit board (PCB) footprint.

Free Dev kit   
Key Features
  • Ultrawideband frequency range: 100 MHz to 44 GHz / 9kHz to 44 GHz (ADRF5025)
  • Reflective design
  • Low insertion loss with impedance match
  • dB typical to 18 GHz / 0.9 dB typical to 18 GHz (ADRF5025)
    • 1.4 dB typical to 40 GHz
    • 1.7 dB typical to 44 GHz
  • Low insertion loss without impedance match
    • 0.9 dB typical to 18 GHz
    • 1.7 dB typical to 40 GHz
    • 2.1 dB typical to 44 GHz / 2.2 dB typical to 44 GHz (ADRF5025)
  • High input linearity
    • P1dB: 27.5 dBm typical
    • IP3: 50 dBm typical
  • High RF input power handling
    • Through path: 27 dBm
    • Hot switching: 27 dBm
  • No low frequency spurious
  • RF settling time (50% VCTRL to 0.1 dB of final RF output): 17 ns / 3.4 μs (ADRF5025)
  • 12-terminal, 2.25 mm × 2.25 mm LGA package
Data

Click below to view a brief overview of the ADRF5024 & ADRF5025 devices

 

Fully populated and connectorized evaluation boards using 4-layer, 62 mil thick, RO4003 PCB material are available for the ADRF5024 and ADRF5025 44 GHz SPDT switches.

 

 

For normal operation, two supply voltages +3.3V and -3.3V can be applied to the VDD and VSS test points respectively, while their ground voltages are connected to the GND test point. Control input voltage, 0V or +3.3V, can be applied to the CTRL test point to select the switch state between RFC-RF1 and RFC-RF2.

The RF input signal can be applied at the edge-launch, 2.4 mm RF connector labelled RFC and the RF output signals can be measured at the edge-launch, 2.4 mm connectors labelled RF1 and RF2.

Anglia are offering customers a FREE evaluation board and samples of the ADRF5024 & ADRF5025 44 GHz SPDT switches from Analog Devices, please fill in the form below to register your interest now.

To register for FREE evaluation board and samples of the ADRF5024 & ADRF5025 44GHz SPDT switches from Analog Devices, please fill in the form below

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FREE samples for UK and Ireland customers only, subject to availability.

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