Manufacturer’s Guide on how to select a / D converter

Have you ever studied the A / D converter data sheet in depth? This is an adventure, even for people with analog engineering backgrounds, and it can be daunting for many manufacturers from digital and software backgrounds. The parameter table is helpful, but for manufacturers, understanding the work at hand is more important than filtering […]

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Two situations to avoid in mixed signal design

Mixed signal refers to digital and analog signal. The first principle is to reduce the area of current loop as much as possible; the second principle is that the system only uses one reference plane. On the contrary, if there are two reference planes in the system, a dipole antenna may be formed (Note: the […]

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How to choose the right model of digital multimeter

Digital multimeter is the most basic and important instrument that every electronic engineer, professional, beginner or amateur wants to have in the work area. Its main features are high accuracy, strong resolution, perfect test function, fast measurement speed, intuitive display, strong filtering ability, low power consumption and easy to carry. Since the 1990s, the digital […]

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Design of AD conversion by PIC Single Chip Microcomputer

AD conversion Let’s first look at R1 and R2. R2 is an adjustable resistor. If we increase R2, the voltage on pin ra1 will be higher. The smaller R2 is, the smaller the voltage on pin ra1 is. How does the SCM know the voltage change. This requires AD conversion. It is to convert analog […]

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