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.
This article explains how Arduino works from an electronic design perspective. It also explains the role of every part of…
This article explains how Arduino works from an electronic design perspective. It also explains the role of every part of the Arduino.
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.
How cheap MCUs are turning ubiquitous sensors into the next IoT frontier.
How cheap MCUs are turning ubiquitous sensors into the next IoT frontier.
Part One in this three-article series focuses on using the SAM4S timer/counter peripheral to precisely control the…
Part One in this three-article series focuses on using the SAM4S timer/counter peripheral to precisely control the DAC’s sampling rate.
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.
Learn LabVIEW FPGA by programming the on-board Xilinx FPGA of the student-focused embedded device NI myRIO.
Learn LabVIEW FPGA by programming the on-board Xilinx FPGA of the student-focused embedded device NI myRIO.
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.
Learn how to read electrical signals and data from an analog device using the Step Response technique in Part 5 of the…
Learn how to read electrical signals and data from an analog device using the Step Response technique in Part 5 of the Building Raspberry Pi Controllers series.
Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an…
Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an EFM8 microcontroller, a DAC, and the MAX31855 thermocouple-to-digital converter.
One of the most common analog-to-digital converters used in applications requiring a sampling rate under 10 MSPS is the…
One of the most common analog-to-digital converters used in applications requiring a sampling rate under 10 MSPS is the Successive Approximation Register ADC. This ADC is ideal for applications requiring a resolution between 8-16 bits.
The techniques discussed in previous articles can help us to understand and remedy stability problems observed in a…
The techniques discussed in previous articles can help us to understand and remedy stability problems observed in a common circuit used to amplify photodiode signals.
Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC).…
Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC). In order to understand these fully, concepts such as quantisation, and the Nyquist Criterion must be understood to a certain degree.
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