Latest Analog Technical Articles

In this article, we’ll use phasor diagrams to compare narrowband FM and conventional AM. We’ll also discuss the…

In this article, we’ll use phasor diagrams to compare narrowband FM and conventional AM. We’ll also discuss the problem of oscillator phase noise and work through an example problem.

Using the third-order intercept point (IP3) metric, we examine how the nonlinearity of individual gain stages in a…

Using the third-order intercept point (IP3) metric, we examine how the nonlinearity of individual gain stages in a cascaded RF system affects the linearity performance of the cascade as a whole.

Using a simple example, this article examines the frequency spectra of frequency-modulated (FM) and phase-modulated (PM)…

Using a simple example, this article examines the frequency spectra of frequency-modulated (FM) and phase-modulated (PM) waves for a low modulation index.

Gain compression causes power systems to transition from linear to nonlinear operation. Learn how the 1 dB compression…

Gain compression causes power systems to transition from linear to nonlinear operation. Learn how the 1 dB compression point is used to define the limits of linear operation.

Learn about the Weaver modulator, an RF circuit that improves on older forms of SSB modulation by removing the need for…

Learn about the Weaver modulator, an RF circuit that improves on older forms of SSB modulation by removing the need for either sharp bandpass filters or quadrature phase shifters.

We explore the basic concepts of analog predistortion for linearizing RF amplifiers and review some common implementations.

We explore the basic concepts of analog predistortion for linearizing RF amplifiers and review some common implementations.

Learn about a classic amplitude modulation (AM) technique that’s been used in voice transmission for nearly a century.

Learn about a classic amplitude modulation (AM) technique that’s been used in voice transmission for nearly a century.

Learn about an important design technique for high-power RF transmitters: feed-forward linearization, which operates on…

Learn about an important design technique for high-power RF transmitters: feed-forward linearization, which operates on the principle of distortion signal cancellation.

We examine RF demodulation circuits used for both double-sideband suppressed carrier (DSB-SC) signals and double-sideband…

We examine RF demodulation circuits used for both double-sideband suppressed carrier (DSB-SC) signals and double-sideband signals with a carrier.

This article highlights a selection of circuits used for amplitude modulation, including a switching modulator built with…

This article highlights a selection of circuits used for amplitude modulation, including a switching modulator built with just one diode and a circuit that incorporates a Class C power amplifier.

Learn how the balanced modulator addresses shortcomings of the square-law modulator when generating DSB-SC and…

Learn how the balanced modulator addresses shortcomings of the square-law modulator when generating DSB-SC and conventional AM signals.

In this project article, we'll use a 555 timer IC to build an iconic musical instrument from the early days of synthesizers.

In this project article, we'll use a 555 timer IC to build an iconic musical instrument from the early days of synthesizers.

In this article, we discuss a tuning method designed specifically for Class E RF amplifiers.

In this article, we discuss a tuning method designed specifically for Class E RF amplifiers.

Learn about the advantages and disadvantages of DSB-SC amplitude modulation.

Learn about the advantages and disadvantages of DSB-SC amplitude modulation.

In this project article, we’ll create a programmable device that alerts users to changes in ambient light levels. Along…

In this project article, we’ll create a programmable device that alerts users to changes in ambient light levels. Along the way, we’ll learn about astable multivibrators and the Darlington pair.

In this article, we discuss the basics of RF modulation and how it affects the performance of communication systems.

In this article, we discuss the basics of RF modulation and how it affects the performance of communication systems.

In this article, we examine the oscillation behavior of an LED blinker circuit in QSPICE and learn how to control its…

In this article, we examine the oscillation behavior of an LED blinker circuit in QSPICE and learn how to control its ON-time and pulse repetition frequency.

Learn how to design and verify analog circuits using SLiCAP, a Python-based symbolic simulator program.

Learn how to design and verify analog circuits using SLiCAP, a Python-based symbolic simulator program.

In this article, we'll walk through the process of importing SPICE models into QSPICE and demonstrate the basics of using…

In this article, we'll walk through the process of importing SPICE models into QSPICE and demonstrate the basics of using the QSPICE waveform viewer, including measurement markers.