Linear phase response, also known as constant group delay, is an important property in some filter applications.
Linear phase response, also known as constant group delay, is an important property in some filter applications.
This technical brief explains the importance of complex-conjugate poles and second-order stages in optimizing filter performance.
This technical brief explains the importance of complex-conjugate poles and second-order stages in optimizing filter performance.
This technical brief covers the basic characteristics of a digital modulation scheme known as quadrature phase shift keying.
This technical brief covers the basic characteristics of a digital modulation scheme known as quadrature phase shift keying.
Learn about the basics, signal conditioning, digital output, and hardware specs of passive infrared sensors.
Learn about the basics, signal conditioning, digital output, and hardware specs of passive infrared sensors.
ADCs (analog-to-digital converters) can be described as either Nyquist-rate or oversampled converters. The Delta-Sigma…
ADCs (analog-to-digital converters) can be described as either Nyquist-rate or oversampled converters. The Delta-Sigma ADC belongs to the oversampled family of converters. It relies upon oversampling and noise shaping to achieve high-resolution conversions.
In this article, we’ll look at the equation for differential gain and use LTspice to find the value of the…
In this article, we’ll look at the equation for differential gain and use LTspice to find the value of the channel-length-modulation parameter referred to as lambda (λ).
In this article, we’ll discuss MOSFET small-signal output resistance as we make our way toward predicting the gain of…
In this article, we’ll discuss MOSFET small-signal output resistance as we make our way toward predicting the gain of the actively loaded differential pair.
In this article, we’ll discuss two benefits of using an active load: improved biasing conditions and…
In this article, we’ll discuss two benefits of using an active load: improved biasing conditions and differential-to-single-ended conversion.
Learn about a fairly simple yet highly beneficial modification to the drain-resistor-based version of the MOSFET…
Learn about a fairly simple yet highly beneficial modification to the drain-resistor-based version of the MOSFET differential pair.
In this article, we’ll examine the most straightforward version of this foundational integrated-circuit amplifier topology.
In this article, we’ll examine the most straightforward version of this foundational integrated-circuit amplifier topology.
This article describes the bridge-amplifier configuration and explains why it’s especially handy when you don’t have…
This article describes the bridge-amplifier configuration and explains why it’s especially handy when you don’t have a negative voltage supply.
In this article, we’ll compare active and passive filters and look at some common second-order active topologies.
In this article, we’ll compare active and passive filters and look at some common second-order active topologies.
In this article, we'll review the basic concepts in digital filter design. We'll also briefly discuss the advantages of…
In this article, we'll review the basic concepts in digital filter design. We'll also briefly discuss the advantages of FIR filters over IIR designs, e.g. stability and linear-phase response. Finally, we'll go over an introduction to designing FIR filters via the window method.
Part Three in this three-article series shows you how to generate values for a discrete sinusoid and continuously convert…
Part Three in this three-article series shows you how to generate values for a discrete sinusoid and continuously convert this data into an analog signal without overburdening the CPU.
Part Two in this three-article series explores the SAM4S DAC. We’ll look at hardware configuration, electrical…
Part Two in this three-article series explores the SAM4S DAC. We’ll look at hardware configuration, electrical characteristics, and the application programming interface.
Classifying signals is a way to organize the signals that surround us. It focuses design, testing requirements,…
Classifying signals is a way to organize the signals that surround us. It focuses design, testing requirements, measurement tools, and expected results. There are many ways to classify signals!
In this article we’ll use the SAM4S Xplained Pro development platform to get some hands-on experience with a PWM DAC.
In this article we’ll use the SAM4S Xplained Pro development platform to get some hands-on experience with a PWM DAC.
In this article we will take a closer look at how to effectively low-pass filter a PWM signal into an analog voltage.
In this article we will take a closer look at how to effectively low-pass filter a PWM signal into an analog voltage.
If your microcontroller doesn’t have a digital-to-analog converter, you can make a passable replacement with nothing…
If your microcontroller doesn’t have a digital-to-analog converter, you can make a passable replacement with nothing more than a pulse-width-modulated signal and a low-pass filter.
If you choose to buffer with MOSFETs instead of BJTs, you need to consider the relationship between gate capacitance and…
If you choose to buffer with MOSFETs instead of BJTs, you need to consider the relationship between gate capacitance and instability.
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