77 GHz Flip-Chip Low Noise Amplifier

Part # TGA4705-FC


Key Features

  • Frequency range: 72 to 80 GHz
  • Noise figure: 5 dB at 77 GHz
  • Gain: 23 dB
  • Bias: Vd = 2.5 V, Id = 60 mA, Vg = +0.18 V typical
  • Technology: 0.13 um pHEMT with front-side Cu/Sn pillars
  • Chip dimensions: 2.24 x 1.27 x 0.38 mm


The TriQuint TGA4705-FC is a flip-chip low noise amplifier (LNA) designed to operate at frequencies that target the automotive radar market. The TGA4705-FC is designed using TriQuint's proven 0.13 µm pHEMT process and front-side Cu / Sn pillar technology for reduced source inductance and superior noise performance at frequencies of 72 tp 80 GHz. Die reliability is enhanced by using TriQuint's BCB polymeric passivation process.

The TGA4705-FC is a low noise amplifier that typically provides 23 dB small signal gain with 5 dB noise figure at 77 GHz. The TGA4705-FC is an excellent choice for applications requiring low noise in receive chain architectures.

The part is lead-free and RoHS compliant.


Frequency (GHz) 72 to 80
NF (dB) 5
Gain (dB) 23
Output IP3 (dBm)
P1dB (dBm)
Voltage (V) 2
Current (mA) 60
Package Style  Die

Typical Applications

Additional Information

Status Production