Avago GaAs LTE power amp has high linearity
Avago Technologies has a high-gain, high-linearity power amplifier for broadband data rate applictaions in LTE basestations and femtocells.
The MGA-43128 700-800MHz amplifier has a fully matched input and the output includes integrated pre-match circuitry for matching. An integrated bypass switch controlled attenuator provides up to 18.0 dB attenuation, and the device also has a temperature-compensated power detector on chip.
The device’s linear output power is achieved by using a proprietary 0.25µm GaAs Enhancement-mode pHEMT process, which allows single 5V supply operation and useable performance down to 3.3V.
The MGA-43128 is offered in a miniature 5.0 x 5.0 x 0.85 mm surface mount, 28-lead QFN package and operates over a temperature range of -40° C to +85° C. The QFN package is lead free and halogen free, and it has a moisture sensitivity rating of MSL-2a to permit a floor-life of four weeks out of the bag.
The 700MHz MGA-43128 joins Avago’s 29dBm linear power amplifier family, following the released MGA-43228 and MGA-43328 power amplifiers that cover 2300 to 2500 MHz and 2500 MHz to 2700 MHz, respectively.