GENERAL DESCRIPTION

The 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.

FEATURES

Operation: 2.3 GHz to 4.0 GHz

Gain of 14.0 dB at 2.6 GHz

OIP3 of 41.0 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 voltage: 3.3 V to 5 V

Power supply current: 37 mA to 90 mA

Dynamically adjustable bias

No bias resistor required

Thermally efficient, MSL-1 rated SOT-89 package

Operating temperature range: −40°C to +105°C

ESD rating of ±2 kV (Class 3A)

APPLICATIONS

Wireless infrastructure

Automated test equipment

ISM/AMR applications