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analog gain

时间: 2023-11-08 20:50:59 浏览: 201

Trade off and Optimization in Analog CMOS Design

This book details the significant performance tradeoffs available in analog CMOS design and guides the designer towards optimum design by describing: An interpretation of MOS modeling for the analog designer, motivated by the EKV MOS model, using tabulated hand expressions and figures that give performance and tradeoffs for the design choices of drain current, inversion coefficient, and channel length; performance includes effective gate-source bias and drain-source saturation voltages, transconductance efficiency, transconductance distortion, normalized drain-source conductance, capacitances, gain and bandwidth measures, thermal and flicker noise, mismatch, and gate and drain leakage current Measured data that validates the inclusion of important small-geometry effects like velocity saturation, vertical-field mobility reduction, drain-induced barrier lowering, and inversion-level increases in gate-referred, flicker noise voltage In-depth treatment of moderate inversion, which offers low bias compliance voltages, high transconductance efficiency, and good immunity to velocity saturation effects for circuits designed in modern, low-voltage processes Fabricated design examples that include operational transconductance amplifiers optimized for various tradeoffs in DC and AC performance, and micropower, low-noise preamplifiers optimized for minimum thermal and flicker noise A design spreadsheet, available at the book web site, that facilitates rapid, optimum design of MOS devices and circuits

Analog gain是指通过调节ISO来控制相机的感光度。在摄影中，ISO值越高，感光度越高，图像中的细节和噪点也会增加。而ADC（analog digital converter）是将模拟信号转换为数字信号的设备，它将相机感光元件捕捉到的模拟信号转换为数字信号，以供后续处理和存储。Digital gain是在数字信号中对图像进行放大的过程，它是在数字域中对图像像素值进行调整，而不是通过增加感光度来实现。所以，analog gain、ADC和digital gain是相机中不同的概念和功能，分别涉及到感光度的调节、模拟信号转换和数字信号处理。\[1\] #### 引用[.reference_title] - *1* *2* *3* [手机镜头，噪声建模，ISP，ISO与analog gain](https://blog.csdn.net/NCU_wander/article/details/126521720)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item] [ .reference_list ]

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