Latest Digital Filters Industry Articles

This article investigates the Transform Engine, another part of the PowerQuad, which enables the LPC55S69 MCU to compute…

This article investigates the Transform Engine, another part of the PowerQuad, which enables the LPC55S69 MCU to compute a Fast Fourier Transform (FFT).

This article discusses an algorithm to find the optimum adjusted point in a two-dimensional space with orthogonal input…

This article discusses an algorithm to find the optimum adjusted point in a two-dimensional space with orthogonal input vectors. The algorithm solves equations for intersecting circles based on measured data points.

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 explains how to use an NTC or a PTC thermistor with an ADC, along with the various process techniques to…

This article explains how to use an NTC or a PTC thermistor with an ADC, along with the various process techniques to convert ADC measured results into a usable temperature value.

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.

Learn how the updated serial standard, JESD204C, addresses lane speed as well as inefficient 8B/10B coding and the impact…

Learn how the updated serial standard, JESD204C, addresses lane speed as well as inefficient 8B/10B coding and the impact those changes have when working on high-speed data converter board designs.

This design solution evaluates the accuracy of thermocouples used for high-temperature measurements as well as resistance…

This design solution evaluates the accuracy of thermocouples used for high-temperature measurements as well as resistance temperature detectors (RTDs) used for local cold-junction-compensation (CJC) points.

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 8 of the Resolving the Signal series dives further into how different noise sources impact precision delta-sigma…

Part 8 of the Resolving the Signal series dives further into how different noise sources impact precision delta-sigma ADCs by focusing on reference noise and ADC noise, and how gain affects reference 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 part 2 of this article, we will focus on key specifications and features in the context of wearable devices, condition…

In part 2 of this article, we will focus on key specifications and features in the context of wearable devices, condition monitoring, and IoT applications.

Integrated RF agile transceivers are not only widely employed in software-defined radio (SDR) architectures in cellular…

Integrated RF agile transceivers are not only widely employed in software-defined radio (SDR) architectures in cellular telephone base stations, such as multiservice distributed access system (MDAS) and small cell, but also for wireless HD video transmission for industrial, commercial, and military applications, such as unmanned aerial vehicles (UAVs).

In this article, we show measured improvements of over 10 dB at 10 kHz offsets using the AD9164 DAC.

In this article, we show measured improvements of over 10 dB at 10 kHz offsets using the AD9164 DAC.

In this multipart industrial IoT series, we will break down and explore the fundamental aspects of the edge node…

In this multipart industrial IoT series, we will break down and explore the fundamental aspects of the edge node interpretation within the larger IoT framework: sensing, measuring, interpreting, and connecting data, with additional consideration for power management and security.

This article examines the common assumption that the clock-performance requirement for an RF sampling ADC is much more…

This article examines the common assumption that the clock-performance requirement for an RF sampling ADC is much more stringent compared to a heterodyne approach.