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

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...

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Bibliographic Details
Published inJournal of semiconductors Vol. 33; no. 8; pp. 123 - 126
Main Author 韩蕾 王玉军 张小兴 戴宇杰 吕英杰
Format Journal Article
LanguageEnglish
Published 01.08.2012
Subjects
Circuits
Devices
Diffusion
D类功率放大器
Power amplifiers
Semiconductors
Simulation
创业过程
启动电流
启动设计
模拟方法
模拟设备
电路实现
自偏置
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ISSN1674-4926
DOI10.1088/1674-4926/33/8/085008

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Summary: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%.
Bibliography:Han Lei, Wang Yujun, Zhang Xiaoxing, Dai Yujie, and La Yingjie 1 Institute of Microelectronics, Nankai University, Tianjin 300457, China 2Nanda Qiangxin Co. Ltd., Tianjin 300457, China
11-5781/TN
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%.
temperature independent current reference; bi-stable circuit; start-up process; simulation method; yield improvement
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ISSN:1674-4926
DOI:10.1088/1674-4926/33/8/085008