← 返回 JSSC 论文列表JSSC 2009第5期Other0.35μm CMOS
Transimpedance Amplifier for High Sensitivity Current Measurements on Nanodevices
一种用于纳米器件高灵敏度电流测量的跨阻放大器
输入等效噪声52fA/√Hz @100kHz, 检测能力达亚attofarad级
跨阻放大器纳米器件电流测量低噪声阻抗谱
▸低噪声时间连续反馈环路处理高达数十nA的静态电流
▸采用主动电流减少器实现数百GΩ的高线性等效电阻
▸嵌套米勒补偿网络确保MHz带宽内的强稳定性
Abstract
ember , IEEE, Alessandro Molari, and Marco Sampietro
Abstract—The paper presents a very high sensitivity tran-
simpedance amplifier in standard CMOS 0.35
m technology
suited for sensing current signals from molecular and nanodevices
systems. The circuit, based on an integrator followed by a dif-
ferentiator configuration, features i) a low-noise time-continuous
feedback loop to cope with possible standing currents from the
device under test as high as few tens of nA without limiting the
signal dy