Irvine-based Teridian Semiconductor, a maker of systems-on-a-chip components for the energy measurement market, has been acquired by Maxim Integrated Products, the firms said this week. According to Maxim, it will pay approximately $315M in cash for Teridian. Maxim said that Teridian has a 50 percent share in the growing system-on-chip (SoC) energy measurement market. Maxim said the buy will help the firm accelerate adoption of its powerline communications products, as well as accelerate sales of its other related smart metering related products. Teridian was backed by private equity firm Golden Gate Capital.