ADL5321 Datasheet | Analog Devices

FEATURES Operation: 2.3 GHz to 4.0 GHz Gain of 14.0 d B at 2.6 GHz OIP3 of 41.0 d Bm at 2.6 GHz P1d B of 25.7 d Bm at 2.6 GHz Noise figure: 4.0 d B at 2.6 GHz Power supply voltage: 3.3 V to 5 V Power supply current: 37 m A to 90 m A 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 k V (Class 3A) APPLICATIONS Wireless infrastructure Automated test equipment ISM/AMR applications GENERAL DESCRIPTION The ADL5321 incorporates a dynamically adjustable biasing circuit that allows for the customization of OIP3 and P1d B 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 d Bm to 26 d Bm output power levels. The ADL5321 is also rated to operate across the wide temperature range of - 40°C to +105°C for reliable performance in designs that experience higher temperatures, such as power amplifiers. The ¼ watt driver amplifier covers the 2.3 GHz to 4.0 GHz wide frequency range and only requires a few external ponents to be tuned to a specific band within that wide range. This high performance, broadband RF driver amplifier is well suited for a variety of wired and wireless applications including cellular infrastructure, ISM band power amplifiers, defense equipment, and instrumentation equipment. A fully populated evaluation board is available. 2.3 GHz to 4.0 GHz ¼ Watt RF Driver Amplifier FUNCTIONAL BLOCK...