传感器自动修调系统设计

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...

Design of Sensor Automatic Trimming System

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.