DC to >50 GHz Medium Power Amplifier with AGC

Part # TGA4803

Last Time Buy   End of Life announced June 21, 2016 (16-0141)
Last Time Buy January 6, 2017.
Contact your local sales representative for assistance.

Key Features

  • 0.15um pHEMT technology
  • DC to > 50GHz linear bandwidth
  • 8dB Gain, 14dBm @ P1dB
  • Group delay ripple +/- 6 ps to 50 GHz
  • < 10 ps edge rates (20/80)
  • 3.5 Vpp 43 Gb/s NRZ PRBS
  • Bias: Vd=6.5 V, 100 mA
  • Chip size: 1.90 x 1.09 x 0.10 mm


The TriQuint TGA4803 is a medium power wideband AGC amplifier that typically provides 8 dB small signal gain with 3 dB AGC range. Typical input and output return loss is > 10dB. Typical Noise Figure is 5 dB at 3 GHz. Typical saturated output power is 17 dBm. Small signal 3 dB BW is > 50 GHz. RF ports are DC coupled enabling the user to customize system corner frequencies.

The TGA4803 is an excellent choice for 43 Gb/s NRZ applications. The TGA4803 is capable of driving a single Electro-Absorptive optical Modulator (EAM) with electrical Non-Return to Zero (NRZ) data. In addition, the TGA4803 may also be used as a transmit pre-driver or a receive gain block. Drain bias may be applied through the output port for best efficiency or through the on-chip drain termination. Three stages in cascade demonstrated 3.8 Vpp output voltage swing with 350 mV at the input when stimulated with 43 Gb/s 2^31-1 PRBS NRZ data.

The TGA4803 requires off-chip decoupling and blocking components. Each device is 100% DC and RF tested on-wafer to ensure performance compliance. The device is available in die form and is lead-free and RoHS compliant.


Frequency (GHz) DC to 50+
Vpp (V) 3.5
Gain (dB) 8
3 dB Bandwidth (GHz) > 50
Voltage (V) 6.5
Current (mA) 100
Package Style  Die
RoHS  Yes
Lead Free  Yes
Halogen Free  Yes

Typical Applications

Additional Information

Status Last Time Buy