摘要
为改进抑制零点漂移的技术,提出了利用一种新型的器件CBT来抑制零点漂移的方法,分析了CBT的电流增益在一定范围内基本上不随温度和工作电流变化的机理,给出了输出特性曲线与基区沟道宽度、时间及温度的关系。测试结果表明:改进后的集成运算放大器的失调电流随温度变化显著减小,输出特性曲线基本不随温度变化,该器件主要应用于军事及航天领域中的精密仪器及仪表中。
In order to improve technology of restraining zero drift, a new method of utilizing a new type device CBT to suppress zero drift is put forward. The mechanism has been analyzed that the current gain of CBT doesn＇t vary basically with temperature and operation current within the specific scope. Based on this, the relationship between output characteristic curve and width of the Channel-Base, time and temperature is given. The testing result indicates that the variation of detuning current of improved integration amplifier with temperature is reduced obviously, and the output characteristic curve doesn＇t vary with temperature. The device is mainly applied for precise instruments in military and aerospace field.
出处
《辽宁工程技术大学学报（自然科学版）》
EI
CAS
北大核心
2006年第1期107-110,共4页
Journal of Liaoning Technical University (Natural Science)
基金
辽宁省教育厅高等学校科学研究基金资助项目(20050052)
