Latest Filters Technical Articles

This article will review some basic structures to implement Finite Impulse Response (FIR) filters.

This article will review some basic structures to implement Finite Impulse Response (FIR) filters.

This article will review the basics of the frequency sampling method for designing FIR filters.

This article will review the basics of the frequency sampling method for designing FIR filters.

In this article, we’ll look at a fairly straightforward circuit that enables a robot or other device to detect sound.

In this article, we’ll look at a fairly straightforward circuit that enables a robot or other device to detect sound.

Learn how to implement a moving average filter and optimize it with CIC architecture.

Learn how to implement a moving average filter and optimize it with CIC architecture.

This article reviews the basics of D/A conversion and explains how multirate DSP can lead to a more efficient system.

This article reviews the basics of D/A conversion and explains how multirate DSP can lead to a more efficient system.

Good analog-to-digital conversion starts with good pre-ADC signal conditioning. Specialized devices such as the…

Good analog-to-digital conversion starts with good pre-ADC signal conditioning. Specialized devices such as the LTC6432-15 can help in this effort.

Researchers develop a wearable sensor for detecting important analytes in sweat for monitoring dehydration.

Researchers develop a wearable sensor for detecting important analytes in sweat for monitoring dehydration.

Isolation components, such as the ACPL-C799, allow you to transfer data without establishing a direct electrical…

Isolation components, such as the ACPL-C799, allow you to transfer data without establishing a direct electrical connection between two parts of a system.

In this article, we'll first study types of noise and then try to eliminate them by filtering the data. Finally, we'll…

In this article, we'll first study types of noise and then try to eliminate them by filtering the data. Finally, we'll try to find peaks in that data.

LED ring flashes and lights can be a valuable tool for photographers. In this tutorial, we are going to build our own…

LED ring flashes and lights can be a valuable tool for photographers. In this tutorial, we are going to build our own ring light out of LEDs!

This article discusses the I-V curves of passive non-linear devices such as diodes, transistors, and thyristors.

This article discusses the I-V curves of passive non-linear devices such as diodes, transistors, and thyristors.

How do you design a filter that (ideally) has the same gain for all frequencies? And, furthermore, why would you want to do this?

How do you design a filter that (ideally) has the same gain for all frequencies? And, furthermore, why would you want to do this?

An introduction to the Analog Discovery 2 by Digilent.

An introduction to the Analog Discovery 2 by Digilent.

Linear phase response, also known as constant group delay, is an important property in some filter applications.

Linear phase response, also known as constant group delay, is an important property in some filter applications.

This technical brief explains the importance of complex-conjugate poles and second-order stages in optimizing filter performance.

This technical brief explains the importance of complex-conjugate poles and second-order stages in optimizing filter performance.

This technical brief presents a simple MOSFET configuration that can be used as a voltage-controlled switch.

This technical brief presents a simple MOSFET configuration that can be used as a voltage-controlled switch.

This technical brief describes channel-length modulation and how it affects MOSFET current–voltage characteristics.

This technical brief describes channel-length modulation and how it affects MOSFET current–voltage characteristics.

ADCs (analog-to-digital converters) can be described as either Nyquist-rate or oversampled converters. The Delta-Sigma…

ADCs (analog-to-digital converters) can be described as either Nyquist-rate or oversampled converters. The Delta-Sigma ADC belongs to the oversampled family of converters. It relies upon oversampling and noise shaping to achieve high-resolution conversions.

In this article, we’ll look at the equation for differential gain and use LTspice to find the value of the…

In this article, we’ll look at the equation for differential gain and use LTspice to find the value of the channel-length-modulation parameter referred to as lambda (λ).