Charge scaling 10-bit successive approximation A/D converter with reduced input capacitance

O. Kursu, T. Rahkonen
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引用次数: 3

Abstract

A low power 10-bit successive approximation A/D converter which is designed for implantable bioelectronics is presented. The converter has a charge scaling digital-to-analog converter which also samples the input signal. The charge scaling capacitance is in a split-capacitor configuration that has a total input capacitance which is 95.5 % smaller compared to a conventional design and 25%smaller compared to a conventional split-capacitor design. The converter operates at 308 kS/s and has a single-ended structure. The circuit is simulated with a 0.35 µm 4M2P CMOS process. Simulation results for the proposed A/D converter are presented.
减小输入电容的电荷缩放10位连续近似A/D转换器
介绍了一种用于植入式生物电子学的低功耗10位连续近似A/D转换器。该转换器具有电荷缩放数模转换器,该转换器还对输入信号进行采样。电荷缩放电容采用分路电容配置,其总输入电容比传统设计小95.5%,比传统分路电容设计小25%。转换器的工作速度为308 k /s,具有单端结构。采用0.35µm 4M2P CMOS工艺对电路进行了仿真。给出了所提出的A/D转换器的仿真结果。
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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