Broadband Low Noise Amplifier 0.8dB NF 50MHz to 4GHz 18dB Gain with LDO

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Part Number: LNA50M4GR is a high-linearity, low noise amplifier designed for operation from 50MHz to 4GHz in a small 15/16”x1-1/8”x0.49” shielded RF enclosure (PN: 6UDE2W6S1A2). It integrates Low Dropout Regulator (LDO) for wide voltage operation range (+6~15V). At 900 MHz, the amplifier typically provides 18 dB gain, +33 dBm OIP3 at a 45 mA bias setting, and 0.8 dB noise figure. SKU#: AK20-002D.

Proudly Made in USA by Lotus Communication Systems, INC. in Massachusetts.


  • Frequency Range: 50 MHz to 4 GHz
  • Noise Figure: 0.8 dB @ 900 MHz, typical <1dB
  • Gain: 18 dB Gain at 900MGHz
  • Output P1dB: +22 dBm CW
  • Output IP3: +33 dBm
  • DC Voltage: +6 to +15V
  • Operating Current: 45 mA
  • Stainless Steel SMA Female Connector
  • High Quality Rogers RO4350 RF PCB
  • ROHS Compliant


  • Repeaters/DAS
  • Mobile Infrastructure
  • General Purpose Wireless
  • SDR & Ham Radio
  • Test Instrumentation

Resources (PDF Datasheet) LNA50M4GR Datasheet