In this project, we design an A-weighted analog noise filter for audio frequencies. The filter provides a variable frequency gain response that is similar to…
In this project, we design an A-weighted analog noise filter for audio frequencies. The filter provides a variable frequency gain response that is similar to that of our hearing.
This article presents the design of an unweighted (Z-weighted) audio filter with a flat frequency response from 20 Hz to…
This article presents the design of an unweighted (Z-weighted) audio filter with a flat frequency response from 20 Hz to 20 kHz for the measurement of audio noise.
This project demonstrates the design and operation of a root-mean-squared (RMS) detector for inclusion in a wideband…
This project demonstrates the design and operation of a root-mean-squared (RMS) detector for inclusion in a wideband voltmeter. The RMS detector is useful for measuring certain signal types, including noise, since it provides an indication of the energy in a signal.
Design a wideband analog multimeter to measure AC voltages and currents from 20 Hz to 1 MHz with a selectable sensitivity…
Design a wideband analog multimeter to measure AC voltages and currents from 20 Hz to 1 MHz with a selectable sensitivity from 1 mV to 100 V, while the ammeter has a selectable current sensitivity of 10 mA to 10 A.
Learn about two nonlinearity sources, spurious-free dynamic range (SFDR), and SNR (signal-to-noise ratio) in…
Learn about two nonlinearity sources, spurious-free dynamic range (SFDR), and SNR (signal-to-noise ratio) in analog-to-digital converters (ADCs).
Quadrature networks convert a single input signal into two outputs with a 90-degree phase difference. This article…
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.
Learn about RTD (resistance temperature detector) signal conditioning through a four-wire configuration, ratiometric…
Learn about RTD (resistance temperature detector) signal conditioning through a four-wire configuration, ratiometric measurement, and input RC filters.
This project will explain how to develop a system to measure magnetic field emissions at frequencies up to 150 kHz from…
This project will explain how to develop a system to measure magnetic field emissions at frequencies up to 150 kHz from high-current power cables without cutting or disturbing the cable.
Learn about frequency response and bandwidth specification of MEMS accelerometers.
Learn about frequency response and bandwidth specification of MEMS accelerometers.
This article provides a general understanding of what DSP is, how it works, and what advantages it can offer. To…
This article provides a general understanding of what DSP is, how it works, and what advantages it can offer. To appreciate the advantages of DSP, let’s first have a look at the conventional method of signal processing, i.e., analog signal processing.
Learn how two methods of demodulation compare: synchronous demodulation and rectifier-type demodulation. Here we discuss…
Learn how two methods of demodulation compare: synchronous demodulation and rectifier-type demodulation. Here we discuss each method's advantages, drawbacks, and appropriate applications.
In this series of articles, we’ll discuss one of the fundamental building blocks of analog IC design: the…
In this series of articles, we’ll discuss one of the fundamental building blocks of analog IC design: the switched-capacitor circuit.
Our series on quantization noise begins with a clarification of the framework the author used to determine the scope of…
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.
In the final part of this series on modeling ADCs, we discuss one more model and also briefly cover DAC models.
In the final part of this series on modeling ADCs, we discuss one more model and also briefly cover DAC models.
In this article, we discuss another methodology of how to model ADCs in system simulations, this time by using the…
In this article, we discuss another methodology of how to model ADCs in system simulations, this time by using the effective number of bits and also adjusting our ADC by introducing a 5th order polynomial to the ideal quantizer input.
How should I and Q combining be done? Through analog or digital means? This article will discuss the basics of the analog…
How should I and Q combining be done? Through analog or digital means? This article will discuss the basics of the analog and digital IQ approaches.
Leakage current can contribute to power dissipation, especially at lower threshold voltages. Learn about six types of…
Leakage current can contribute to power dissipation, especially at lower threshold voltages. Learn about six types of leakage current that can be found in MOS transistors.
This article covers the basics of MOS transistors with a view towards better understanding the leakage current that can…
This article covers the basics of MOS transistors with a view towards better understanding the leakage current that can occur in such transistors.
In this article, we will learn how to find the optimal size of a transistor/logic gate present in a larger circuit to…
In this article, we will learn how to find the optimal size of a transistor/logic gate present in a larger circuit to provide the desired performance using the linear delay model.
Learn all about graphene field-effect transistors or GFETs. We'll cover their construction, as well as the benefits and…
Learn all about graphene field-effect transistors or GFETs. We'll cover their construction, as well as the benefits and challenges of designing with them.
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