Current sources are less familiar than voltage sources like batteries and AC wall power. Current sources usually are buried, unseen, inside electronic circuitry.…
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.
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 thermocouple signal conditioning and thermocouple nonlinearity through two different monolithic thermocouple…
Learn about thermocouple signal conditioning and thermocouple nonlinearity through two different monolithic thermocouple amplifier solutions: the AD849x family and the LT1025.
Learn about temperature drift in electronic circuits, namely in resistors and amplifiers. We'll also cover how the effect…
Learn about temperature drift in electronic circuits, namely in resistors and amplifiers. We'll also cover how the effect of flicker noise comes into play and how drift limits the effectiveness of signal averaging.
Learn about piezoelectric accelerometers with integrated electronics piezoelectrics (IEPEs), namely an IEPE's voltage…
Learn about piezoelectric accelerometers with integrated electronics piezoelectrics (IEPEs), namely an IEPE's voltage mode, charge mode, and dynamic range.
Learn about charge amplifier limitations at low frequencies, the effects of time constants, and how the drift phenomenon…
Learn about charge amplifier limitations at low frequencies, the effects of time constants, and how the drift phenomenon can also introduce errors in low-frequency measurements.
Learn about charge amplifiers which are used for charge output conversion of a piezoelectric sensor into a usable voltage signal.
Learn about charge amplifiers which are used for charge output conversion of a piezoelectric sensor into a usable voltage signal.
Learn about how system nonlinearity creates distortion in audio signals that impacts the sounds we hear. We will examine…
Learn about how system nonlinearity creates distortion in audio signals that impacts the sounds we hear. We will examine sine waves, harmonics, and intermodulation distortion.
Learn about frequency response and bandwidth specification of MEMS accelerometers.
Learn about frequency response and bandwidth specification of MEMS accelerometers.
How does an amplifier's input offset voltage impact the accuracy of a current sense resistor's measurement? And how does…
How does an amplifier's input offset voltage impact the accuracy of a current sense resistor's measurement? And how does amplifier output swing affect your shunt resistor value? Learn this and more in this technical article.
In this article, we’ll discuss why a discrete implementation cannot provide a high accuracy in resistive current sensing.
In this article, we’ll discuss why a discrete implementation cannot provide a high accuracy in resistive current sensing.
What's the difference between high-side and low-side resistive current sensing? This article explains the basics, as well…
What's the difference between high-side and low-side resistive current sensing? This article explains the basics, as well as when each is the more appropriate design choice.
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.
Learn where demodulator circuits are needed and how you can convert the AC output of an LVDT (linear variable…
Learn where demodulator circuits are needed and how you can convert the AC output of an LVDT (linear variable differential transformer) into DC signals using a diode rectifier.
In this article, we'll discuss instrumentation amplifiers (in-amps) which have high common-mode rejection and provide…
In this article, we'll discuss instrumentation amplifiers (in-amps) which have high common-mode rejection and provide high and equal input impedances. We will also look at the advantages and disadvantages of a commonly-used in-amp often referred to as the three-op amp in-amp.
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.
Learn about the concept of ENOB (effective number of bits) and how it can be used in modeling data converters in system…
Learn about the concept of ENOB (effective number of bits) and how it can be used in modeling data converters in system simulations.
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