文献类型：会议论文

英文题名：Design of a low-power operational amplifier for real-time signal processing system of microsensor

作者：Ru, Bei[1]

第一作者：茹蓓

通讯作者：Ru, B.

机构：[1] Institute of Computer and Information Engineering, Xinxiang University, Xinxiang, China

第一机构：新乡学院计算机与信息工程学院

会议论文集：2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010

会议日期：7 November 2010 through 9 November 2010

会议地点：Henan

语种：英文

外文关键词：Analog circuits - CMOS integrated circuits - Dielectric devices - Integrated circuit design - Metallic compounds - Metals - Microsensors - MOS devices - Oxide semiconductors - Signal processing - Transistors

摘要：A low-power complementary metal oxide semiconductor(CMOS) operational amplifier(op-amp) is proposed for real-time signal processing system of microsensor. This proposed implementation was based on traditional folded cascode op-amp architecture with positive channel metal oxide semiconductor (PMOS) differential input transistors, which is the best choice for lower-power applications. Simultaneously the wide swing cascode current mirror with sufficient output swing under the low supply voltage is applied to eliminate external bias voltages and related biasing circuit, which are beneficial to further reduce the power consumption. Combined with the theory calculation and computer simulation, the design is implemented in SMIC 1P6M 0.18um 1.8V CMOS technology, with satisfied results. The power is only 0.22mW. ?2010 IEEE.