The MAPS-010146 is a GaAs pHEMT 4-bit digital phase shifter with an integrated CMOS driver in a 4mm PQFN plastic surface mount package. Step size is 22.5º providing phase shift from 0º to 360º in 22.5º steps. This design has been optimized to minimize variation in attenuation over the phase shift range. The MAPS-010146 is ideally suited for use where high phase accuracy with minimum loss variation over the phase shift range are required. The 4mm PQFN package provides a smaller footprint than is typically available for a digital phase shifter with an internal driver. Typical applications include communications antennas and phased array radars.