Exar公司是全球宽带通讯IC制造商。专门为全球通讯市场提供高性能模拟和混合信号IC产品，同时也提供视频图像类IC产品。它的主要用户包括Alcatel, Cisco, 惠普, 朗讯，诺基亚和 Tellabs。公司总部在美国加州。

Exar公司由于拥有在高速模拟和混合信号领域的经验以及它对系统的了解，因而能够为高速宽带通讯市场提供物理接口和存取控制方案。除此之外，它还为数码相机等需要高速高精度数据采集操作的数字视频图像设备提供IC产品。

Exar公司的产品都是委托代工服务商代为生产，技术方面拥有bipolar, CMOS 和 BiCMOS等多种工艺，但绝大多数的产品采用CMOS工艺生产。

2017年，EXAR被Maxlinear收购。


Founded in 1971, Exar Corporation designs, develops and markets high performance integrated circuits and system solutions for the industrial, infrastructure, automotive and audio/video markets. Exar's broad product portfolio includes power management, sensing and signal conditioning, interface, LED lighting, data management and video processing solutions.

Exar strives to be the most responsive analog and mixed-signal solutions provider by leveraging our broad portfolio, experience, and IP to enable the world’s leading electronic manufacturers to connect and power their next generation products.

Exar’s mission is to leverage its extensive analog and mixed-signal portfolio experience and IP to deliver leading-edge application specific technology solutions to target markets where operational excellence and reliability are valued. Exar products are deployed in a wide array of applications such as industrial, instrumentation and medical equipment, networking and telecommunication systems, servers, LED lighting solutions, automotive infotainment systems and video and teleconferencing systems. Exar provides customers with a breadth of component products and sub-system solutions based on advanced silicon integration.

Exar has design centers in Silicon Valley, California, and Hsinchu (Taiwan) and has sales locations worldwide providing real-time customer support.