传感器自动修调系统设计  

Design of Sensor Automatic Trimming System

作　　者：肖峰 张彬 刘泽栋 孙曦东 XIAO Feng;ZHANG Bin;LIU Zedong;SUN Xidong(The 47th Institute of China Electronics Technology Group Corporation,Shenyang 110000,China)

机构地区：[1]中国电子科技集团公司第四十七研究所,沈阳110000

出　　处：《微处理机》2022年第1期5-8,共4页Microprocessors

摘　　要：传感器电路在生产流片中,受到工艺条件等非理想因素影响,一些参数偏离设计值,会导致流片后芯片精度及性能达不到设计预期。为弥补这一电路设计期望与芯片最终性能之间的差距、快速完成修调工作,通过系统、硬件、软件三个层面的详细论证,综合设计一款传感器自动修调系统。系统由控制板、修调电路板及上位机显示控制部分三大块组成,用到单片机及各种电路模块、传感器、外围电路等。上位机显示控制部分采用VB编写,界面简洁友好、操作简单。经实验调试,系统实现了多参数、高精度采集,能够快速完成修调工作,保证修调完的传感器满足性能要求。The sensor circuit, when during taping out, is affected by the non-ideal factors such as process conditions, and some parameters deviate from the design values, which will lead to the chip precision and performance after taping out can not meet the design expectations. In order to make up the gap between the design expectation and the final performance of the chip circuit, and complete the trimming work quickly, a sensor automatic trimming system is designed through detailed demonstration of system,hardware and software comprehensively. The system consists of three parts:control board, trimming circuit board and upper computer display control part, which uses MCU, various circuit modules, sensors, peripheral circuits and so on. The upper computer display control part is written in VB, with simple and friendly interface and simple operation. After experimental debugging, the system realizes multi-parameter and high-precision acquisition, and can quickly complete the trimming work to ensure that the sensor after trimming meets the performance requirements.

关 键 词：传感器 自动修调 DAC模块 ADC模块 单片机 串口通讯 

分 类 号：TN47[电子电信—微电子学与固体电子学]