噪声重要与否，取决于它对目标电路工作的影响程度。 例如，一个开关电源在3 MHz时具有显著的输出电压纹波，如果它为之供电的电路仅有几Hz的带宽，如温度传感器等，则该纹波可能不会产生任何影响。但是，如果该开关电源为RF锁相环(PLL)供电，结果可能大不 ...

MAX4638/MAX4639为单通道8:1和双通道4:1 CMOS模拟多路复用器/解复用器。每个多路复用器均采用+1.8V至+5V单电源或±2.5V双电源供电 ...

Developing embedded software is an increasingly complex problem. As the world moves to multi-core, multi-architecture devices, software engineers need to leverage and debug different processing ...

Inertial MEMS sensors play a significant role in the massive expansion of today’s personal electronic devices. Their small size, low power, ease of integration, high level of functionality, and superb ...

IBIS表示输入/输出缓冲器信息规范。它代表了IC供应商提供给客户进行高速设计仿真的器件的数字引脚的特性或行为。这些模型 ...

Comparator ICs are designed to compare the voltages that appear at their inputs and to output a voltage representing the sign of the net difference between them. In a comparator circuit, if the ...

Op amps are very high gain amplifiers with differential inputs and single-ended outputs. They are often used in high precision analog circuits, so it is important to measure their performance ...

The difference between insignificant noise and significant noise is the degree to which the noise affects the operation of the circuit in question. For example, a switching power supply has a ...

The thermocouple is a simple, widely used component for measuring temperature. This article provides a basic overview of thermocouples, describes common challenges encountered when designing with them ...

Serial peripheral interface (SPI) is one of the most widely used interfaces between microcontroller and peripheral ICs such as sensors, ADCs, DACs, shift registers, SRAM, and others. This article ...

Even with the widespread use of rail-to-rail single supply op amps, there is still often the requirement for dual rails (for example, ±15 V) to be generated from a single (positive) input power rail ...

A design idea for a white-noise generator is realized and revised. Two low-noise amplifiers (LNAs) in cascade amplify the noise produced by a reverse-biased Zener diode operating in junction-breakdown ...