Latest Filters Industry Articles

Learn how surface-mount adapter evaluation modules (EVMs) help ease the transition to analog ICs with advanced package types.

Learn how surface-mount adapter evaluation modules (EVMs) help ease the transition to analog ICs with advanced package types.

Learn five alternatives to spread spectrum for EMI mitigation in switched-mode power supplies: passive and active EMI…

Learn five alternatives to spread spectrum for EMI mitigation in switched-mode power supplies: passive and active EMI filtering, slew rate control, advanced packaging, and PCB layout optimization.

Switching noise jitter (SNJ) is an important concept to digest and a tricky problem to manage. Learn the background of…

Switching noise jitter (SNJ) is an important concept to digest and a tricky problem to manage. Learn the background of SNJ and how employing innovative filtering technology can smooth the way.

In this installation of the "Protect Your Ports! Top Design Tips to Keep Your Communications Connected" series, we'll…

In this installation of the "Protect Your Ports! Top Design Tips to Keep Your Communications Connected" series, we'll discuss low-speed interfaces and power supply circuits—including audio/video ports, DC power supplies, and more—as well as various methods of how to protect them.

This article is the first in the "Protect Your Ports! Top Design Tips to Keep Your Communications Connected" series from…

This article is the first in the "Protect Your Ports! Top Design Tips to Keep Your Communications Connected" series from Littelfuse.

Learn about the widely used methods for filtering and processing data samples in the time domain while taking a closer…

Learn about the widely used methods for filtering and processing data samples in the time domain while taking a closer look at the Dual Biquad IIR engine of the PowerQuad unit in the LPC55S69 MCU. 

This article compares the noise performance of two different amplifiers and optimizes noise performance through the use…

This article compares the noise performance of two different amplifiers and optimizes noise performance through the use of passive filtering.

Autonomous drones and robots utilize small motors. These fast-spinning mini motors require miniature encoders and IC…

Autonomous drones and robots utilize small motors. These fast-spinning mini motors require miniature encoders and IC package sizes. This article shows how an optical sinusoidal encoder provides a higher resolution and increased speeds with a 2x3 mm dual simultaneous-sampling SAR-ADC.

In part 12 of Resolving the Signal, we look at a power-supply noise design example to discuss which supplies are most…

In part 12 of Resolving the Signal, we look at a power-supply noise design example to discuss which supplies are most critical when trying to increase a system's PSR. From that example, we offer best practices to maintain low power-supply noise and debugging tips for a system's overall noise performance.

Part 11 of the Resolving the Signal series explores how power supplies contribute to unwanted noise, how to measure and…

Part 11 of the Resolving the Signal series explores how power supplies contribute to unwanted noise, how to measure and quantify that noise, and how noise ends up impacting system performance.

Part 10 of the Resolving the Signal series covers how clocks affect precision ADCs, touching on clock jitter, clock…

Part 10 of the Resolving the Signal series covers how clocks affect precision ADCs, touching on clock jitter, clock intermodulation and best PCB layout practices for clocking.

Part 9 of the Resolving the Signal series analyzes several different methods for reducing reference noise's effect in…

Part 9 of the Resolving the Signal series analyzes several different methods for reducing reference noise's effect in systems and examines the difference of reference noise's impact on low- and high-resolution ADCs.

This article shows how to implement an analog PID controller, including adjusting of the angular position of a DC motor…

This article shows how to implement an analog PID controller, including adjusting of the angular position of a DC motor shaft, editing the design to control its speed, and tuning PID parameters for reliable performance.

This 12-part article series focuses on the impact of noise in delta-sigma ADCs. Part 7 shows how to analyze different…

This 12-part article series focuses on the impact of noise in delta-sigma ADCs. Part 7 shows how to analyze different amplifiers' effect on the noise of the same ADC.

Part 6 of this 12-part Resolving the Signal series focuses on output- versus input-referred noise, adding an amplifier at…

Part 6 of this 12-part Resolving the Signal series focuses on output- versus input-referred noise, adding an amplifier at the input of an ADC, and low- versus high-resolution ADCs as they relate to amplifier noise.

Part 5 of this 12-part series continues to explore effective noise bandwidth as it relates to delta-sigma ADCs and…

Part 5 of this 12-part series continues to explore effective noise bandwidth as it relates to delta-sigma ADCs and system-level design by stepping through a simple example using a two-stage filter to understand how to calculate the ENBW and how system changes affect the ENBW.

Part 4 of this “Resolving the Signal” article series covers noise in delta-sigma ADCs focuses on understanding basic…

Part 4 of this “Resolving the Signal” article series covers noise in delta-sigma ADCs focuses on understanding basic effective noise bandwidth (ENBW) topics.

In part 2 of this series, I'll continue the fundamental ADC noise discussion by covering how to measure ADC noise, noise…

In part 2 of this series, I'll continue the fundamental ADC noise discussion by covering how to measure ADC noise, noise specifications in ADC data sheets, and absolute versus relative noise parameters.

In this article, I show that designers can achieve 10 GHz bandwidth when using a THA in front of one of Analog Dialogue's…

In this article, I show that designers can achieve 10 GHz bandwidth when using a THA in front of one of Analog Dialogue's RF market converters.