A simple and effective method to achieve the successful start-up of a current reference  

作　　者：韩蕾 王玉军 张小兴 戴宇杰 吕英杰 

机构地区：[1]Institute of Microelectronics,Nankai University [2]Nanda Qiangxin Co.Ltd.

出　　处：《Journal of Semiconductors》2012年第8期123-126,共4页半导体学报（英文版）

摘　　要：Start-up design is a critical issue in current reference as it is very closely related to production yield. However, its function is difficult to predict using normal transaction simulations before the device is put into diffusion. In this paper, we discuss a simple and effective simulation approach which ensures a successful start-up process in a self-biased temperature independent current reference. The circuit is implemented in a class-D power amplifier with a 0.35 #m BiCMOS process and the experimental result validates that, by using this method, the start-up success rate can be greatly improved to 100%.Start-up design is a critical issue in current reference as it is very closely related to production yield. However, its function is difficult to predict using normal transaction simulations before the device is put into diffusion. In this paper, we discuss a simple and effective simulation approach which ensures a successful start-up process in a self-biased temperature independent current reference. The circuit is implemented in a class-D power amplifier with a 0.35 #m BiCMOS process and the experimental result validates that, by using this method, the start-up success rate can be greatly improved to 100%.

关 键 词：temperature independent current reference bi-stable circuit start-up process simulation method yield improvement 

分 类 号：TN722.75[电子电信—电路与系统]