DIY portable headphone amplifier based on an INA1620 chip and TPS65135

INA1620 DIY headphone amplifier front

Today’s topic is going to be related to audio amplifiers. Particularly a headphone amplifier based on an INA1620 IC. There are going to be two main parts of this post – the first one about the amplifier and its construction, and the second – about my attempt to measure how well it performs. Other post … Read more