Latest Passives Technical Articles

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 l-type impedance matching equations through the quality factor (Q factor) of RC and RL circuits and the…

Learn about l-type impedance matching equations through the quality factor (Q factor) of RC and RL circuits and the series-parallel conversion of these circuits.l-

In addition to explaining the nature of a negative voltage, this article briefly discusses how negative voltages are…

In addition to explaining the nature of a negative voltage, this article briefly discusses how negative voltages are generated and why they are useful in circuit design.

Learn about the admittance Smith chart to analyze a parallel connection of resistors, capacitors, and inductors, and see…

Learn about the admittance Smith chart to analyze a parallel connection of resistors, capacitors, and inductors, and see the circuit's behavior over the swept frequency range.

Learn how a series RLC circuit with arbitrary component values can be represented as a point on the Smith chart and how…

Learn how a series RLC circuit with arbitrary component values can be represented as a point on the Smith chart and how an impedance contour on the Smith chart can be used to describe the circuit's frequency response.

Learn how to derive the wave equations for a lossless transmission line and look at its infinite bandwidth and phase constant.

Learn how to derive the wave equations for a lossless transmission line and look at its infinite bandwidth and phase constant.

Current sources are less familiar than voltage sources like batteries and AC wall power. Current sources usually are…

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.

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.

Learn the basics of ratiometric resistance measurements in analog to digital (A/D) converters, how it's measured, and…

Learn the basics of ratiometric resistance measurements in analog to digital (A/D) converters, how it's measured, and example uses in a digital multimeter (DMM), microprocessor, and various resistive sensors.

Learn how manufacturers characterize and estimate the long-term drift (LTD) of a voltage reference for electronic…

Learn how manufacturers characterize and estimate the long-term drift (LTD) of a voltage reference for electronic component aging prediction.

Learn how analog circuits can be used to implement cold junction compensation using examples from Analog Devices and…

Learn how analog circuits can be used to implement cold junction compensation using examples from Analog Devices and Texas Instrument's TMP35 and LM335 temperature sensors, respectively.

Learn about the aging behavior of resistors and amplifiers using temperature calculations and the Arrhenius equation to…

Learn about the aging behavior of resistors and amplifiers using temperature calculations and the Arrhenius equation to understand resistor drift, resistor stability, and op-amp drift.

Learn about calculating the activation energy of the aging process and some of the contradictory opinions about the…

Learn about calculating the activation energy of the aging process and some of the contradictory opinions about the Arrhenius equation's usefulness when predicting a crystal's aging process.

Learn about the aging and stability challenges for electric components due to temperature and time using quartz crystals,…

Learn about the aging and stability challenges for electric components due to temperature and time using quartz crystals, as well as applying the extrapolation method, aging equation, and Arrhenius equation.

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.

Dive further into switched capacitor circuits by learning about charge pump circuits, what they are, how they work, their…

Dive further into switched capacitor circuits by learning about charge pump circuits, what they are, how they work, their pros and cons, and their applications.

Learn how to use non-linear models in LTspice to simulate the characteristics of transformers, a crucial part of SMPS…

Learn how to use non-linear models in LTspice to simulate the characteristics of transformers, a crucial part of SMPS (switched-mode power supply) design.

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.

This article discusses how we can examine the oscillator circuit to make sure that it has sufficient “negative…

This article discusses how we can examine the oscillator circuit to make sure that it has sufficient “negative resistance” or “oscillation allowance”.