HMC347B

RECOMMENDED FOR NEW DESIGNS

GaAs, SPDT Switch, Nonreflective, 0.1 GHz to 20 GHz

Analog Devices HMC347B Product Info

10 February 2026 5

Features

Broadband frequency range: 0.1 GHz to 20 GHz
Nonreflective, 50 Ω design
Low insertion loss: 1.7 dB typical to 20 GHz
High isolation: 46 dB typical to 20 GHz
High input linearity
- Input P1dB: 25 dBm typical
- Input IP3: 41 dBm typical

High power handling
- 27 dBm through path
- 25 dBm terminated path
10-pad, 1.3 mm × 0.85 mm × 0.102 mm CHIP

Part details & applications

The HMC347B is a broadband, nonreflective gallium arsenide (GaAs), pseudomorphic high electron mobility transistor (pHEMT) SPDT monolithic microwave integrated circuit (MMIC) chip. The switch operates from 0.1 GHz to 20 GHz with an insertion loss of 1.7 dB and an isolation of 46 dB to 20 GHz due to the implementation of on-chip, via hole structures

The switch operates with two negative control voltage inputs (VCTL = −5 V or 0 V), requires no supply, and has no current consumption. All electrical performance data is acquired with the RFx pads of the HMC347B connected to 50 Ω transmission lines via one 3.0 mil × 0.5 mil ribbon of minimal length.

Applications

Test instrumentations
Microwave radios and very small aperture terminals (VSATs)
Military radios, radars, electronic counter measure (ECMs)
Broadband telecommunications systems

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