Alternative Parts


Features and Benefits

  • Nonreflective, 50 Ω design
  • High isolation: 62 dB to 2 GHz
  • Low insertion loss: 1.0 dB to 2 GHz
  • High input linearity
    • 1 dB power compression (P1dB): 34 dBm (typical)
    • Third-order intercept (IP3): 53 dBm (typical)
  • High power handling
    • 33.5 dBm through path, VDD = 5 V
    • 26.5 dBm terminated path
  • Single, positive supply: 3 V to 5 V
  • CMOS-/TTL-compatible control
  • All off state control
  • 16-lead, 4 mm × 4 mm LFCSP
  • Pin-compatible with the HMC8038

Product Details

The HMC349ALP4CE is a gallium arsenide (GaAs), single-pole, double throw (SPDT) switch, specified from 100 MHz to 4 GHz.

The HMC349ALP4CE is well suited for wireless infrastructure applications by yielding high isolation of 62 dB, low insertion loss of 1.0 dB, high input IP3 of 53 dBm, and high input P1dB of 34 dBm.

The HMC349ALP4CE operates with a single, positive supply voltage from 3 V to 5 V and provides a CMOS-/TTL-compatible control interface.

The HMC349ALP4CE comes in a 16-lead, 4 mm × 4 mm, RoHS compliant, lead frame chip scale package (LFCSP).


  • Wireless infrastructure
  • Mobile radios
  • Test equipment

Product Lifecycle icon-recommended Production

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.

Evaluation Kits (1)

Tools & Simulations


Design Tools


ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

Design Resources

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PCN-PDN Information

Sample & Buy

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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.