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RF driver amplifier consumes less power in wireless applications

Norwood, Mass.—Analog Devices Inc. has introduced the ADL5321, a low power RF driver amplifier that operates in frequencies of 2.3-GHz to 4.0-GHz for LTE, WiMAX and WiBro applications.

According to ADI, the ADL5321 boosts signal linearity and consumes less power, relative to competing RF amplifiers. When implemented in a system, such as a base station, radio, or satellite equipment, the ADL5321 eliminates up to four external passive components, which eases design complexity and enables RF designers to more quickly bring cost-effective, highly-efficient wireless infrastructure equipment to market.

The ADL5321 has an output OIP3 of 40 dBm and output compression point of 25 dBm at 2600 MHz. The ADL5321 consumes 84 mA, which is a 30% to 50% power savings over competing devices, ADI said. The ADL5321 also features on-chip active bias circuitry, which further reduces the external component count. The driver amplifier includes a Class 3A, ±4 kV, ESD (electrostatic discharge) rating.

For lower frequency applications the ADL5321 has a companion product, the ADL5320, which operates across a 400 MHz to 2700 MHz frequency range.

Pricing: $2.55 per unit in 1,000-piece quantities.
Availability: Sampling now with production quantities available
in May 2008.

Datasheet: ADL5321.

Analog Devices, www.adi.com

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