A High Side Current Sensing Circuit with High PSRR Based on BCD Process
This paper describes an instrumentation amplifier for bidirectional high-side current sensing applications. It uses an advanced high-voltage process to design. To achieve high power supply voltage, the circuit adds a current source under the amplifier. So the circuit has a wide power supply voltage range from 4V-40V, and the input common-mode voltage of the amplifier also can go beyond its supply rail. The bipolar transistors as the input stages devices reduce the offset voltage. The amplifier uses the folded –casecode structure to increase the slew rate. Finally, the design has passed by the high-voltage BCD simulation library.
high voltage high side current sense wide power supply range high-PSRR
Jianbin Lin Huihui Cheng Jianli Xing
Microelectronics and solid-state electronics DepartmentXiamen UniversityXiamen, China Microelectronics and solid-state electronics Department Xiamen University Xiamen, China
国际会议
厦门
英文
177-179
2011-06-24（万方平台首次上网日期，不代表论文的发表时间）