RF Amplifiers

By Analog Devices Inc 200

RF Amplifiers

ADI's ADL5531 is a broadband, fixed-gain, linear amplifier that operates at frequencies up to 500 MHz. The device can be used in a wide variety of equipment, including cellular, satellite, broadband, and instrumentation equipment.

The ADL5531 provides a gain of 20 dB, which is stable over frequency, temperature, power supply, and from device to device. This amplifier is single ended and internally matched to 50 Ω. Only input / output AC coupling capacitors, power supply decoupling capacitors, and external inductors are required for operation.

ADI's ADL5541 is a broadband 15 dB linear amplifier that operates at frequencies up to 6 GHz. The device can be used in a wide variety of CATV, cellular, and instrumentation equipment.

The ADL5541 provides a gain of 15 dB, which is stable over frequency, temperature, power supply, and from device to device. The device is internally matched to 50 Ω with an input return loss of 10 dB or better up to 6 GHz. Only input / output AC coupling capacitors, power supply decoupling capacitors, and an external inductor are required for operation.

ADI's ADL5542 is a broadband 20 dB linear amplifier that operates at frequencies up to 6 GHz. The device can be used in a wide variety of CATV, cellular, and instrumentation equipment.

The ADL5542 provides a gain of 20 dB that is stable over frequency, temperature, power supply, and from device to device. The device is internally matched to 50 Ω with an input return loss of 10 dB or better, up to 6 GHz. Only input / output AC coupling capacitors, power supply decoupling capacitors, and an external inductor are required for operation.

ADI's ADL5321 incorporates a dynamically adjustable biasing circuit that allows for the customization of OIP3 and P1dB performance from 3.3 V to 5 V without the need for an external bias resistor. This feature gives the designer the ability to tailor driver amplifier performance to the specific needs of the design. This feature also creates the opportunity for dynamic biasing of the driver amplifier, where a variable supply is used to allow for full 5 V biasing under large signal conditions and then can reduce the supply voltage when signal levels are smaller and lower power consumption is desirable. This scalability reduces the need to evaluate and inventory multiple driver amplifiers for different output power requirements from 22 dBm to 26 dBm output power levels.

ADL5531ACPZ-R7 Features ADL5541ACPZ-R7 Features
  • Fixed gain of 20 dB
  • Operation up to 500 MHz
  • Input / output internally matched to 50 Ω
  • Output IP3
    • 41 dBm at 70 MHz
    • 39 dBm at 190 MHz
  • Integrated bias control circuit
  • Output 1 dB compression: 20.6 dB at 190 MHz
  • Noise figure: 2.5 dB at 190 MHz
  • Small footprint 8-lead LFCSP
  • Single 5 V power supply
  • Fixed gain of 15 dB
  • Operation up to 6 GHz
  • Input / output internally matched to 50 Ω
  • Integrated bias control circuit
  • Output IP3
    • 44 dBm at 500 MHz
    • 40 dBm at 900 MHz
  • Output 1 dB compression: 19.7 dBm at 900 MHz
  • Noise figure of 3.5 dB at 900 MHz
  • Single 5 V power supply
  • Small footprint 8-lead LFCSP
  • 1 kV ESD (Class 1C)
ADL5542ACPZ-R7 Features ADL5321ARKZ-R7 Features
  • Fixed gain of 20 dB
  • Operation up to 6 GHz
  • Input / output internally matched to 50 Ω
  • Integrated bias control circuit
  • Output IP3
    • 46 dBm at 500 MHz
    • 40 dBm at 900 MHz
  • Output 1 dB compression: 20.6 dB at 900 MHz
  • Noise figure of 3 dB at 900 MHz
  • Single 5 V power supply
  • Small footprint 8-lead LFCSP
  • Pin compatible with 15 dB gain ADL5542
  • 1 kV ESD (Class 1C)
  • Operation: 2.3 GHz to 4.0 GHz
  • Gain of 14 dB at 2.6 GHz
  • OIP3 of 41 dBm at 2.6 GHz
  • P1dB of 25.7 dBm at 2.6 GHz
  • Noise figure: 4.0 dB at 2.6 GHz
  • Power supply: 5 V
  • Power supply current: 90 mA (typ.)
  • Internal active biasing
  • Thermally efficient SOT-89 package
  • ESD rating of ±2 kV (Class 3A)

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