Learn about two nonlinearity sources, spurious-free dynamic range (SFDR), and SNR (signal-to-noise ratio) in analog-to-digital converters (ADCs).
April 30, 2023 by Dr. Steve Arar
In this project, learn to create a digitally-controlled oscillator or DCO-based audio synthesizer with an Arduino Nano or an Arduino Uno.
April 09, 2023 by Darby Hewitt
In addition to explaining the nature of a negative voltage, this article briefly discusses how negative voltages are generated and why they are useful in circuit design.
April 02, 2023 by Robert Keim
Learn how dithering can suppress both harmonic and non-harmonic spurs and two different types of dithering systems: subtractive and non-subtractive topologies.
February 24, 2023 by Dr. Steve Arar
This article explores step-down switching power supplies that divide output current among multiple regulation subcircuits operating in parallel.
February 07, 2023 by Robert Keim
Through four different examples, learn about analog-to-digital converter (ADC) system error analysis.
January 20, 2023 by Dr. Steve Arar
Learn about characterizing different analog-to-digital converter (ADC) error sources such as resolution and accuracy.
January 08, 2023 by Dr. Steve Arar
Current sources are less familiar than voltage sources like batteries and AC wall power. Current sources usually are buried, unseen, inside electronic circuitry. Learn what they are and how they are designed.
January 02, 2023 by Harry Trietley
Learn more about integral nonlinearity (INL) in analog-to-digital converters (ADCs), like the best fit line INL definition, absolute accuracy, relative accuracy, and total unadjusted error (TUE).
December 30, 2022 by Dr. Steve Arar
Learn about the integral nonlinearity (INL) specification and how it relates to analog-to-digital converter (ADC) errors.
December 26, 2022 by Dr. Steve Arar
Quadrature networks convert a single input signal into two outputs with a 90-degree phase difference. This article explains how to design quadrature networks using all-pass filters.
December 23, 2022 by John Woodgate
Learn about eliminating missing codes through averaging, analog-to-digital converter (ADC) monotonicity, and the effect of ADC nonlinearity on the system's signal-to-noise ratio (SNR).
December 18, 2022 by Dr. Steve Arar
Learn about digital square wave generators using a ring oscillator, a 555 timer-based oscillator, and an Arduino-generated square wave oscillator.
December 11, 2022 by Nicholas St. John
Learn about an imperfection that can affect the system response, the ADC’s nonlinearity, namely the differential nonlinearity (DNL) and integral nonlinearity (INL) specifications.
December 09, 2022 by Dr. Steve Arar
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.
December 04, 2022 by Dr. Steve Arar
Learn about two calibration functions in precision ADCs: system calibration and background calibration modes.
December 02, 2022 by Dr. Steve Arar
Learn about the self-calibration or internal calibration function in an analog-to-digital converter (ADC).
November 27, 2022 by Dr. Steve Arar
MEMS silicon microphones are in everything from cellphones, hearing aids, smart speakers, computers, and vehicles. Learn the basics of how they work, their use, and what’s available.
November 25, 2022 by Harry Trietley
Learn about the two-point calibration method and the fixed-point implementation to compensate for analog-to-digital converter (ADC) offset and gain errors through an example.
November 20, 2022 by Dr. Steve Arar
Learn about RTD (resistance temperature detector) signal conditioning through a four-wire configuration, ratiometric measurement, and input RC filters.
November 18, 2022 by Dr. Steve Arar
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