Low Noise Amplifier/Attenuator with Gain Control

The ABA3130 is a low noise amplifier with gain control that accepts a single-ended RF input in the 50 MHz to 1.1 GHz frequency range and provides a balanced RF output with minimal degradation in signal quality. This highly integrated device amplifies the input signal using a highly linear, low noise amplification stage. The overall linearity is maintained across a wide gain control range, ensuring low distortion effects on the output signal. Requiring a single +5 V supply, the ABA3130 design is implemented using highreliability GaAs MESFET process. The small, surface mount QFN packaging makes this device ideal for use in Cable TV set-top boxes and television receiver front-ends.


  • -33 to +5 dB Gain (user adjustable)
  • Accepts single-ended or differential inputs
  • Differential output
  • 37 dB of Gain Control Range
  • Wideband Operation: to Above 1.1 GHz
  • 4.5 dB Typical Noise Figure at 5 dB Gain
  • Single +5 V Supply
  • RoHS Compliant/Lead-Free Package
  • 3 mm x 3 mm x 1 mm QFN Package
Data Sheets ABA3130: Low Noise Amplifier/Attenuator with Gain Control ABA3130_204328A.pdf (514 KB)
ProductName : ABA3130
Description : Low Noise Amplifier/Attenuator with Gain Control
Gain Typ. (dB) : 4.3
Supply Current Typ. (mA) : 80
Supply Voltage (V) : 5
Noise Figure Typ. (dB) : 4.5 (at Max Gain)
CTB (dBc) Typ : -63
CSO (dBc) Typ : -62
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