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Improving ADC SFDR Using Dithering for Communication System Applications

Improving ADC SFDR Using Dithering for Communication System Applications

Learn more about dithering, namely improving the spurious-free dynamic range (SFDR) of an analog-to-digital converter (ADC) that exhibits differential nonlinearity (DNL) errors.


Understanding Limitations to Increasing SFDR in High-speed ADCs

Understanding Limitations to Increasing SFDR in High-speed ADCs

Learn about two nonlinearity sources, spurious-free dynamic range (SFDR), and SNR (signal-to-noise ratio) in analog-to-digital converters (ADCs).


Creating a DCO-based Audio Synthesizer With an Arduino Nano

Creating a DCO-based Audio Synthesizer With an Arduino Nano

In this project, learn to create a digitally-controlled oscillator or DCO-based audio synthesizer with an Arduino Nano or an Arduino Uno.


Projects Apr 09, 2023 by Darby Hewitt
Reducing Quantization Distortion Via Subtractive and Non-subtractive Dithering

Reducing Quantization Distortion Via Subtractive and Non-subtractive Dithering

Learn how dithering can suppress both harmonic and non-harmonic spurs and two different types of dithering systems: subtractive and non-subtractive topologies.


Digital Square Wave Generator Design Via a Ring Oscillator, 555 Timer, and Arduino

Digital Square Wave Generator Design Via a Ring Oscillator, 555 Timer, and Arduino

Learn about digital square wave generators using a ring oscillator, a 555 timer-based oscillator, and an Arduino-generated square wave oscillator.


What is Dithering? Using Dithering to Eliminate Quantization Distortion

What is Dithering? Using Dithering to Eliminate Quantization Distortion

Learn how dithering can be added to a signal to improve the performance of an analog-to-digital conversion system by eliminating quantization error and distortion.


Op Amp and Transistor-based Analog Square Wave Generator Design

Op Amp and Transistor-based Analog Square Wave Generator Design

Analog oscillator circuits are commonly used to create square wave clock signals for the timing of synchronous circuits. This article covers the theory, design, and key features of analog square wave generators.


Piezoelectric Accelerometers With Integrated Electronics Piezoelectric (IEPE)

Piezoelectric Accelerometers With Integrated Electronics Piezoelectric (IEPE)

Learn about piezoelectric accelerometers with integrated electronics piezoelectrics (IEPEs), namely an IEPE's voltage mode, charge mode, and dynamic range.


How to Measure the Drive Level of a Quartz Crystal

How to Measure the Drive Level of a Quartz Crystal

Learn why the drive level of your quartz crystal oscillator is important and several methods for how to measure it.


Examining the Negative Resistance of a Quartz Crystal Oscillator

Examining the Negative Resistance of a Quartz Crystal Oscillator

This article discusses how we can examine the oscillator circuit to make sure that it has sufficient “negative resistance” or “oscillation allowance”.


Understanding the Operation of Quartz Crystal Oscillators

Understanding the Operation of Quartz Crystal Oscillators

In this article, we’ll try to develop a deeper insight into the operation of a quartz crystal oscillator.


Characterizing Frequency Deviations of Quartz Crystals: Frequency Tolerance, Frequency Stability, and Aging

Characterizing Frequency Deviations of Quartz Crystals: Frequency Tolerance, Frequency Stability, and Aging

Learn about some of the most important characteristics of quartz crystal frequency deviations.


LVDT Demodulation: Rectifier-Type vs. Synchronous Demodulation

LVDT Demodulation: Rectifier-Type vs. Synchronous Demodulation

Learn how two methods of demodulation compare: synchronous demodulation and rectifier-type demodulation. Here we discuss each method's advantages, drawbacks, and appropriate applications.


An Introduction to Switched-capacitor Circuits

An Introduction to Switched-capacitor Circuits

In this series of articles, we’ll discuss one of the fundamental building blocks of analog IC design: the switched-capacitor circuit.


What Is the Power Spectrum of Quantization Noise?

What Is the Power Spectrum of Quantization Noise?

Our series on quantization noise begins with a clarification of the framework the author used to determine the scope of his investigation into quantization noise.


Adding a Low-pass Filter to an ADC Model and DAC Modeling

Adding a Low-pass Filter to an ADC Model and DAC Modeling

In the final part of this series on modeling ADCs, we discuss one more model and also briefly cover DAC models.


Modeling ADCs Using Effective Number of Bits (ENOB)

Modeling ADCs Using Effective Number of Bits (ENOB)

Learn about the concept of ENOB (effective number of bits) and how it can be used in modeling data converters in system simulations.


How Should Data Converters Be Modeled for System Simulations?

How Should Data Converters Be Modeled for System Simulations?

This article launches a series exploring the question of how to model data converters for system simulations.


Reducing Distortion in Tape Recordings with Hysteresis in SPICE

Reducing Distortion in Tape Recordings with Hysteresis in SPICE

Summary


Tips for Achieving Low-Frequency Precision and Improved Bandwidth in Photodiode Circuits

Tips for Achieving Low-Frequency Precision and Improved Bandwidth in Photodiode Circuits

This article continues our discussion of design techniques that help us to improve the performance of transimpedance amplifiers.