Power amplifier enables true premium sound quality with class-D efficiency

Available from Digi-Key, the Texas Instruments' TPA3250 device is a high-performance, class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced, integrated feedback design and proprietary, high-speed gate driver error correction (PurePath Ultra-HD). This technology allows ultra-low distortion across the audio band and superior audio quality. With a 32V power supply the device can drive up to 2W x 130W peak into a 4ohm load and 2W x 70W continuous into an 8ohm load and features a 2VRMS analog input interface that works seamlessly with high-performance DACs such as TI’s PCM5242. In addition to excellent audio performance, the device achieves both high power efficiency and very-low power stage idle losses below 1W. This is achieved through the use of 60mohm MOSFETs and an optimised gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.