Recent advances in semiconductor-process technology and circuit-design techniques have brought down the prices of switched-capacitor filters (SCFs) by a factor of three. As an example, five-pole Butterworth low-pass filters sell for less t...

Much literature and software has been published on the design and the implementation of standard filter responses. When a nonstandard filter response is required, it is often left to the circuit designer to produce a solution using his or ...

Abstract: Adding optimization circuitry to a lowpass filter allows the filter to adjust its cutoff frequency dynamically, preserving the step-response time for relatively low cutoff frequencies. A common problem when desi...

Tuned-bandpass applications often incorporate switched-capacitor filters—these filters enable a sweep of the bandpass center frequency by simply sweeping the applied clock rate. Such an arrangement allows a processor-controlled system to...

Abstract: An application showing how the use of a microprocessor supervisor can be used to program a dual section filter. Using the time delay from the reset circuit and strapping it to the power-fail comparator with a delay circuit, the f...

Much literature and software has been published on the design and the implementation of standard filter responses. When a nonstandard filter response is required, it is often left to the circuit designer to produce a solution using his or ...

Abstract: In a sampled data system, frequency components greater than half the sampling rate "alias" (shift) into the frequency band of interest. Most of the time, aliasing in an undesirable side effect, so the "undersampled" higher freque...

最大限度地減少組件的...

Abstract: The MAX4450 operational amplifier configured in a 3-pole, low-pass Sallen-Key filter provides a Butterworth response with a bandwidth of -3dB at 5.25MHz. This circuit can be used for video anti-aliasing and reconstruction filteri...

Abstract: The MAX4390 operational amplifier configured in a 3-pole, low-pass Sallen-Key filter that provides a Butterworth response with a bandwidth of -3dB at 5.25MHz. This circuit can be used for video anti-aliasing and reconstruction fi...

Abstract: This article is an excellent introduction to analog filters. It covers the basic first and second order filter types as well as the advantages and disadvantages of passive and active filters. It derives and analyzes the basic biq...

Abstract: This article shows how to design analog filters. It starts by covering the fundamentals of filters, goes on to introduce the basic types like Butterworth, Chebyshev, and Bessel, and then guides the reader through the design proce...

摘要：數(shù)字電位器是一種應(yīng)用普遍的器件，本文介紹如何使用數(shù)字電位器構(gòu)建一個(gè)可調(diào)帶寬的低通濾波器。 ...

摘要：本應(yīng)用筆記介紹如何利用MAX4382 3通道放大器構(gòu)建雙電源供電的低成本、三通道、三極點(diǎn)、低通Sallen-Key濾波器。該電路提供巴特沃斯濾波器頻響特性，具有30MHz帶寬，非常適合HD...

Abstract: The application note describes using a digital potentiometer, passive components such as resistors and capacitors, and an operational amplifier to build a digitally controlled phase-shift circuit. Although written specifically fo...

均衡技術(shù)拼合數(shù)模轉(zhuǎn)換...

Abstract: Interleaving multiple analog-to-digital converters (ADCs) is usually performed with the intent to increase a converters effective sample rate, especially if there are no or only few off-the-shelf ADCs available that fulfill the d...

模數(shù)轉(zhuǎn)換器1Gsps...

Abstract: In the mid 1970s, a new data converter architecture was introduced to the analog and mixed-signal community, called pipeline ADCs. The following article takes the knowledge of advantages and disadvantages of the pipeline architec...

Abstract: High-speed applications using ultra-fast data converters in their design often require an extremely clean clock signal to make sure an external clock source does not contribute undesired noise to the overal dynamic performance of...