Latest Filters Technical Articles

Learn about how power spectral density (PSD) helps us to examine the effect of a noise source on the output of a linear…

Learn about how power spectral density (PSD) helps us to examine the effect of a noise source on the output of a linear time-invariant (LTI) system.

In this article, we’ll look at the pros and cons of using a switch-based multiplier.

In this article, we’ll look at the pros and cons of using a switch-based multiplier.

This article explains why validation is particularly important when we’re processing data using a neural network.

This article explains why validation is particularly important when we’re processing data using a neural network.

This article will look at the trade-offs we face when trying to improve the linearity of a circuit.

This article will look at the trade-offs we face when trying to improve the linearity of a circuit.

In this article, we will see how we can determine the SFDR for an ADC used in a radio receiver. Also, we’ll examine the…

In this article, we will see how we can determine the SFDR for an ADC used in a radio receiver. Also, we’ll examine the ADC SNR requirement for this application.

This article will discuss the basic idea behind the synchronous demodulation technique.

This article will discuss the basic idea behind the synchronous demodulation technique.

In this article, we’ll first examine an important feature of common noise sources: the relationship between the noise…

In this article, we’ll first examine an important feature of common noise sources: the relationship between the noise root mean square (RMS) and peak-to-peak value.

In this article, we’ll first review the basic architecture of a SAR ADC and then take a look at one of its common applications.

In this article, we’ll first review the basic architecture of a SAR ADC and then take a look at one of its common applications.

This is Part 3 of a series of articles about the Moog ladder filter. In this article, we'll define the characteristics of…

This is Part 3 of a series of articles about the Moog ladder filter. In this article, we'll define the characteristics of the Moog filter, including its properties.

This article explores the Butterworth low-pass filter, also known as the maximally flat filter, from the perspective of…

This article explores the Butterworth low-pass filter, also known as the maximally flat filter, from the perspective of its pole-zero diagram.

In this second part of a series of articles, we investigate the role of the output impedance of a real-life op-amp.

In this second part of a series of articles, we investigate the role of the output impedance of a real-life op-amp.

In this first part of a series of articles, we investigate the role of the op-amp’s gain-bandwidth product (GBP).

In this first part of a series of articles, we investigate the role of the op-amp’s gain-bandwidth product (GBP).

We are analyzing the behavior of the Moog ladder filter. In this section, we will analyze the heart of the topology and…

We are analyzing the behavior of the Moog ladder filter. In this section, we will analyze the heart of the topology and express the small-signal open-loop transfer function of the filter as a whole.

Learn about one of the only audio filter topologies out there, the Moog filter!

Learn about one of the only audio filter topologies out there, the Moog filter!

This article explains how to generate and refine a Nyquist plot in LTspice and how to incorporate this plot into your AC analysis.

This article explains how to generate and refine a Nyquist plot in LTspice and how to incorporate this plot into your AC analysis.

This article continues a series on Nyquist diagrams by explaining Nyquist curves that represent the transfer function of…

This article continues a series on Nyquist diagrams by explaining Nyquist curves that represent the transfer function of a two-pole filter.

This article continues our exploration of the Nyquist plot by examining the relationship between the plot’s curve and a…

This article continues our exploration of the Nyquist plot by examining the relationship between the plot’s curve and a filter’s cutoff frequency.

Working with a low noise voltage reference? Learn more about noise specifications and relevant voltage reference ICs.

Working with a low noise voltage reference? Learn more about noise specifications and relevant voltage reference ICs.

This article introduces the Nyquist plot and explains how to interpret this alternative method of visually evaluating a…

This article introduces the Nyquist plot and explains how to interpret this alternative method of visually evaluating a system’s frequency response.