2.3 GHz to 4.0 GHz

RF Driver Amplifier

ADL5321

Rev. 0

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FEATURES

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 typical

Internal active biasing

Thermally efficient SOT-89 package

ESD rating of ±2 kV (Class 3A)

FUNCTIONAL BLOCK DIAGRAM

RFIN

GND RFOUT

1

2

BIAS

3

GND

ADL5321

(2)

Figure 1.

GENERAL DESCRIPTION

The ADL5321 is a broadband, linear driver RF amplifier that

operates at frequencies from 2.3 GHz to 4.0 GHz. The device

can be used in a wide variety of wired and wireless applications,

including ISM, WLL, PCS, GSM, CDMA, and W-CDMA.

The ADL5321 operates with a 5 V supply voltage and a supply

current of 90 mA.

The ADL5321 is fabricated on the GaAs HBT process. The

device is packaged in a low cost SOT-89 that uses an exposed

paddle for excellent thermal impedance. It operates from −40°C

to +85°C, and a fully populated evaluation board is available.

The ADL5320 is a companion part to the ADL5321 that operates at

similar performance from 400 MHz to 2700 MHz.