Exploring Transimpedance Amplifier Topologies: Design Considerations and Trade-offs

Lavakumar Navilipuri, Lava Kumar
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Abstract

Transimpedance amplifiers (TIAs) are crucial in converting current signals from sensors, photodiodes, and other transducers into voltage signals for processing in various electronic systems. This paper explores three TIA topologies: common emitter with negative resistive feedback, regulated cascode, and Darlington pair with negative resistive feedback. Each topology offers unique advantages and trade-offs regarding bandwidth, gain, and noise performance. We analyze the characteristics of each topology, discussing their impact on TIA design and performance. We investigate methods to optimize gain, bandwidth, and noise performance for different application requirements through theoretical analysis and circuit simulations. Our findings provide valuable insights into TIA design considerations, offering engineers a comprehensive understanding of TIA topologies and their implications for electronic system design.
探索跨阻放大器拓扑结构:设计考虑因素和权衡
跨阻放大器(TIA)在将传感器、光电二极管和其他传感器的电流信号转换为电压信号以便在各种电子系统中进行处理方面起着至关重要的作用。本文探讨了三种 TIA 拓扑:带负阻反馈的共发射极、稳压级联和带负阻反馈的达林顿对。每种拓扑结构在带宽、增益和噪声性能方面都有独特的优势和权衡。我们分析了每种拓扑结构的特点,讨论了它们对 TIA 设计和性能的影响。通过理论分析和电路仿真,我们研究了针对不同应用要求优化增益、带宽和噪声性能的方法。我们的研究结果为 TIA 设计考虑因素提供了宝贵的见解,让工程师全面了解 TIA 拓扑及其对电子系统设计的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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