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Tailoring the Design of Transimpedance Amplifiers to Infrared Sensor Apps (Part 1) (Download)

Dec. 12, 2024
Log in to download the PDF of this article on TIAs and their application in laser rangefinders and LiDAR systems.

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The performance requirements of transimpedance amplifiers (TIAs) vary significantly between applications. In high-speed communications, wide bandwidth is important, creating challenges in designing for high stability. In most applications, noise performance is critical to overall system sensitivity, and gain requirements vary. 

Large-area photodiodes present higher input capacitance, which may require the design of compensation circuits, and environmental considerations include the ability to maintain acceptable performance over a wide range of temperatures. Size, power consumption, and cost are other ever-present issues. Part 1 considers TIA performance priorities and tradeoffs for two of the three applications discussed in the series: laser rangefinders and LiDAR systems.