摘要
线性度是D/A转换器静态误差的重要指标,包括积分非线性误差和微分非线性误差两个参数。高速高精度D/A转换器线性度的测量需要考虑较多因素,包括仪表精度、D/A转换器输出端接方式,甚至负载热效应等。提出了一种结合D/A转换器内部设计结构,并使外部负载的影响降至较低水平的最优线性度测试方法。该方法减少了发码数量,提高了测试效率,并且降低了负载温漂导致的热失衡所引入的误差。
Linearity,including INL and DNL,is an important parameter of D/A converter.In linearity measurement,many factors should be considered,such as resolution of test instrument,output end-connection mode of D/A converter,and load thermal effect.An optimal linearity measurement method with minimized load effect was presented,in combination with the architecture of D/A converter,which reduced code quantity,improved measurement efficiency and minimized errors induced by heat unbalance due to load temperature shift.
出处
《微电子学》
CAS
CSCD
北大核心
2013年第3期435-439,448,共6页
Microelectronics
基金
模拟集成电路重点实验室基金资助项目(9140C091110903)
国家自然科学基金资助项目(61176030)
