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 ...

With the proliferation of digital phased arrays in commercial and aerospace and defense applications, there are many engineers working on various aspects of the design who have limited phased array ...

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 ...

LTspice provides macromodels for most of Analog Devices’ switching regulators, linear regulators, and amplifiers, as well as a library of devices for general circuit simulation. Select Analog Devices ...

Driven by aging populations and a pronounced increase in hearing loss, the market for hearing aids continues to grow, but their conspicuous size and short battery life turn many people off. As hearing ...

The AD5940 is a high precision, ultra low power, analog front end (AFE) system designed to excite and measure the current, voltage, or impedance response of a sensor. The AD5940 features two high ...

Advances in automotive technology have significantly increased the electronic content of modern automobiles to enhance safety, improve the driving experience, enrich entertainment functions, and ...