Many new linear devices, including voltage references, voltage regulators and opamps have internal feedback loops, prohibiting...

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Today’s high speed systems require clean power under challenging conditions. Extremely fast current transients and high voltage stability...

BROWSER-CLASS PROBE Several companies manufacture and distribute high-frequency TDR probes. These probes are typically designed for very...

Having said all of this, the measurement of a PCB plane using a VNA may not be as straightforward as you might expect. One simple trick...

In modern electronic systems, the performance of FPGAs, CPUs, and other high-speed logic devices depends on the power distribution...

In modern electronic systems, the performance of FPGAs, CPUs, and other high-speed logic devices depends on the power distribution...

In modern electronic systems, the performance of FPGAs, CPUs, and other high-speed logic devices depends on the power distribution...

Recently, I used a shielded coaxial cable to measure power supply ripple and the results were even noisier than using an oscilloscope...

Engineers are under constant pressure to improve the performance of their products while reducing product cost. The key to doing so is a...

Since no impedance path is perfectly flat, we need to make some design adjustments. This article aims to help you make compromises that...

There are many good analyzers available for measuring PDN High performance VNAs are available from all of the major test equipment...

He presents examples of various waveform anomalies and discusses techniques and tips for observing them as well as pitfalls to avoid....

And by taking measurements across all three test domains, designers can trace power supply ripple-related problems back to root causes...

Because of their high ESL compared to ceramic, tantalum capacitors are not the optimum choice for high frequency decoupling. Paralleling...

A single tiny logic gate The first case we’ll look at is a Fairchild NC7SZ04 ultra-high-speed inverter gate. This logic gate is a single...

Although not quite as accurate as the two-port VNA impedance measurement, the current injection technique has advantages including wide...

Keep it flat Most PDN books tell you that the best performing PDN impedance looks flat over frequency.  That is because noise signals are...

Steve Sandler Answers Your PDN Questions (Power Electronics’ Q&A Series) Power Electronics received a question about why PDN is measured...

Shunt through, wideband measurements can be made from approximately 100 microohms to a few ohms. This is the measurement performed by...