摘要
针对1×4的生物传感器阵列,设计了一种CMOS恒电位仪电路。采用了一种所有运算放大器共享同一运放的左半边电路的恒电位仪结构,极大地减少了读出电路的功耗与芯片版图的面积。在0.6μmCMOS工艺下,用Spectre仿真器对该电路进行了模拟,仿真结果表明:运用该恒电位仪的电流积分电路使传感器的输入输出转换具有良好的线性关系和较宽的动态响应范围。
Aimed at a 1×4 biosensor array, a CMOS potentiostat circuit is designed. A potentiostat structure is used that shared a common half circuit among all of the amplifiers,layout area and power consumption of readout circuit are reduced. Simulation is carried out with 0.6μm CMOS process by Spectre emulator. The simulation results show that good linear relation between input and output and broad dynamic respond range of biosensor is obtained by using current integral circuit with potentiostat.
出处
《传感器与微系统》
CSCD
北大核心
2009年第3期80-82,85,共4页
Transducer and Microsystem Technologies
基金
重庆市自然科学基金资助项目(2007BB2176)
