Impedance

Includes measurement, analysis, and optimisation of impedance across frequency, including input/output impedance, PDN impedance, and techniques such as shunt-through and injection methods.

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AI Data Centers Move Capacitors Back into the Spotlight

AI data centers are power hungry, pushing power density to new highs while requiring long-term reliability. The increasing power density, particularly at the board…
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Product
Picotest and Signal Edge Solutions address TAPI concerns.

You may not have heard of TAPI, but you will. By necessity, testing extreme dynamic transient conditions is becoming more and more common for…
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Product
Calibration, Embedding & De-Embedding – Achieving Highly Accurate Impedance Results

OMICRON Lab hosted their 14th Power Analysis & Design Symposium – April 9th, 2025 Watch Steve Sandler discussing how to achieve Highly Accurate Impedance…
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Video
Power Integrity Measurement Tips with the MXO5 and S10 – Capturing Large Signal Phenomena with a TPSM828303A PDN

Large signal measurements are essential to Power Distribution Network (PDN) validation. By stressing the PDN, they reveal transient phenomena that are otherwise difficult to…
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Product
How to Simulate Low Voltage, High Power 2000 Amps to a Dynamic Digital Load

Hardware engineers are learning the hard way that power integrity (PI) requires electromagnetic (EM) simulation of the printed circuit board (PCB) power delivery network…
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Product
PSRR Testing with the J2120A Line Injector

Dealing with Line Injection Issues Here is information on the Power Supply Rejection Ratio (‘PSRR’) measurement setup using the J2120A line injector. Depending on…
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Video
Setting up your PDN Impedance Measurement with Picotest Probes

Ensuring optimal performance in electronic systems requires precise measurement of Power Distribution Network (PDN) impedance. Accurate impedance measurements help identify potential issues such as…
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Video
Building Accurate PI Models with VNA Software: A How 2 Power Guide

Using VNA Software to Build Accurate Models for Power Integrity SimulationsIn power integrity (PI) simulations, accuracy and reliable component models are critical, yet vendor-supplied…
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Product
The Importance of PDN Testing (Impedance) and the Role of the Bode Analyzer

Components such as CPUs, GPUs, FPGAs, and ASICs demand clean and stable power supplies to function effectively, often across various operating conditions. This is…
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Product
Measuring Battery Impedance

Recently, Picotest has had several questions from customers working to measure battery impedance. There are numerous publications and articles about testing battery impedance, even…
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Product
DgCon 2019: Power Integrity Webinars for Addressing Power Related Noise in Distributed Systems

These presentations discuss many of the noise sources that impact sensitive circuits (such as LNAs, Clocks, and PLLs), how to measure them, and how…
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Video
Cadence and Picotest Release NISM on Cadence PSpice

September 26, 2024, Phoenix, AZ: Picotest.com, a leader in high-resolution test and measurement equipment, has announced the availability of the non-invasive stability measurement (‘NISM’)…
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Video
Quantifying PDN Impedance Flatness from Sandler NISM

Download Steve Sandler’s full paper for DesignCon 2023 A New Power Integrity Requirement to Supplement Target Impedance: Quantifying PDN Impedance Flatness Abstract: Target impedance…
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Product
Validating the Validators: Measuring the New Ultra-Low Impedance PDNs

Core power rails are now routinely in the 1 kAmp to 2 kAmp range, requiring a power distribution network (PDN) impedance in the range…
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Product
Optimizing TDR Measurements: Picotest Solutions Integrated with Tektronix Oscilloscopes

At Picotest, we take pride in supporting Tektronix’s advanced TDR (Time Domain Reflectometry) setups with our high-performance J2154A PerfectPulse® Differential TDR and TDR probes.…
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Video
Measuring Converter Input Impedance Using Picotest Tools

To design a stable input filter for a switching converter, measuring input impedance is crucial. Picotest’s J2121A High Power Line Injector simplifies this by…
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Article
Mastering 2-Port Impedance Testing with Picotest Products

Accurate low and ultra-low impedance measurement is crucial for testing and modeling electronic components and for evaluating the performance of power distribution networks (PDNs).…
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Article
Loop Analysis Directly from Time-Domain Waveform with SEPIA

Published in Signal Integrity Journal, written by Masashi Nogawa. Engineers can use a variety of methods to analyze the behavior of a voltage regulator…
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Article
Mastering 1-Port Impedance Testing with Picotest Products

Accurate impedance measurement is fundamental to modeling electronic components and testing the stability and impedance of power systems. 1-port impedance testing is a widely…
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Article
How To Measure 3-Port Impedance with Picotest Products

The accurate measurement of impedance in electronic systems is crucial for ensuring stability, reliability, and performance. Among various techniques, 3-port impedance testing stands out…
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Article
Ultra-Low Impedance Measurement: Testing and Optimizing with the J2114A

Ultra-Low Impedance Measurement: Testing and Optimizing with the J2114A – High CMRR Isolation Amplifier – Ground Loop Breaker Testing ultra-low impedance is critical to…
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Article
Achieving Better Energy Efficiency in AI Data Centers With Power Integrity Testing

Introduction Deployment of AI-based technology is happening in the Data Center. The processor-intensive servers are driving up energy demands. The table below illustrates the…
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Article
Ultra-low Impedance Testing Using the 2-Port Shunt-Through Measurement Technique

Ultra-low Impedance Testing Using the 2-Port Shunt-Through Measurement Technique Measuring ultra-low impedances (20 micro-ohm) is a challenge for any power distribution network (PDN) design…
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Article
“Probing” the Future of Power Integrity Test and Measurement

The future of power integrity is being affected by power-hungry AI accelerators and other high-performance chips. Learn how Picotest is trying to tackle the…
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Article
PDN Impedance Measurements Using Bode 500 and Picotest PDN Probes

Download or watch the presentation from Florian Hämmerle of OMICRON Lab at this year’s 13th Power Analysis & Design Symposium. The power delivery network…
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Article
How To Video – 2-Port Shunt Through Impedance Calibration with Bode 100 and P2102A

This video provides a step-by-step tutorial on setting up and calibrating a 2-port shunt through impedance measurement using the Bode 100, Picotest P2102A 2-port…
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Video
Picotest 2-port Probe Impedance Measurements

Learn how Brian Hostetler from HPE, Inc explains the measurements made on a few different power rails on a printed circuit board (PCB) assembly.…
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Article
ROHDE&SCHWARZ Power Integrity Demo

In this demonstration led by Mike Schnecker, Business Development Manager at Rohde & Schwarz, the focus is on showcasing the intricate relationship between power…
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Article
Picotest Is Exhibiting At DESIGNCON 2024

At DesignCon 2024 we will be exhibiting the following products in our booth; Other companies exhibiting at the show will also have Picotest products…
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Article
The Challenge of Measuring a 40 µohm, 2000 Amp PDN With a 2-Port Probe: How Much CMRR is Needed?

Benjamin Dannan, Signal Edge Solutions and Steve Sandler, Picotest Published in Signal Integrity Journal A two-part series of posts, firstly determining how much CMRR is needed…
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Article
VRM Modeling and Stability Analysis for the Power Integrity Engineer

In the world of power electronics, the focus is on the power supply, and the load is modeled as a simple resistor. In the…
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Article
Picotest Pocket TDR Fills Important Niche

A time domain reflectometer (TDR) is generally a large, expensive benchtop instrument that measures impedance, PCB coupons, dielectric constants, PCB signal traces, interconnects, connectors,…
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Product
Picotest Releases Line of High-Speed Transient Load Steppers for VRM and PDN Validation

In a major technological leap, Picotest, maker of custom test equipment for power integrity and power systems testing, has released a series of very…
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Article
Power Integrity: Ensuring Clean and Stable Power Supplies

The stability and cleanliness, from a noise perspective, of power sources are vital for the reliable operation of modern electronics. Power Integrity (‘PI’), is…
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Article
Load Regulation, Vout/Iout, and Output Impedance

Published October 6, 2023 Masashi Nogawa, Sr. Member of Technical Staff, Qorvo In this article, we’re taking a short break from talking about Power…
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Article
If You Design Anything with a Power Supply, You Need a Vector Network Analyzer

When it comes to designing electronic circuits and systems, ensuring stability, quality, and reliable operation is paramount. If your projects involve power supplies, voltage…
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Product
Application Note – Port Saver – The Smart DC Block

Most instruments don’t tolerate high voltages well. High bandwidth oscilloscopes, spectrum analyzers, and vector network analyzers can easily be damaged by less than 5V.…
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Article
Noise Immunity Testing: Unveiling the Power and Benefits of P2124A High-Speed Water-Cooled GaN Probe

In precision measurement and power integrity testing, engineers face the constant challenge of ensuring accurate and reliable results in high-speed modulation designs. At Picotest,…
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Article
J2154A PerfectPulse® Revolutionizing Impedance Testing – Features and Unbeatable Benefits of the New Differential TDR

Addressing the need for a low-cost single or differential TDR in a portable package, the J2154A PerfectPulse® Differential TDR emerges as a trailblazing solution,…
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Article
Test Training Available from Picotest

Did you know Picotest has published a variety of training aids for engineers looking to learn power supply and power integrity testing methods? This…
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Video

Impedance

AI Data Centers Move Capacitors Back into the Spotlight

Picotest and Signal Edge Solutions address TAPI concerns.

Calibration, Embedding & De-Embedding – Achieving Highly Accurate Impedance Results

Power Integrity Measurement Tips with the MXO5 and S10 – Capturing Large Signal Phenomena with a TPSM828303A PDN

How to Simulate Low Voltage, High Power 2000 Amps to a Dynamic Digital Load

PSRR Testing with the J2120A Line Injector

Setting up your PDN Impedance Measurement with Picotest Probes

Building Accurate PI Models with VNA Software: A How 2 Power Guide

The Importance of PDN Testing (Impedance) and the Role of the Bode Analyzer

Measuring Battery Impedance

DgCon 2019: Power Integrity Webinars for Addressing Power Related Noise in Distributed Systems

Cadence and Picotest Release NISM on Cadence PSpice

Quantifying PDN Impedance Flatness from Sandler NISM

Validating the Validators: Measuring the New Ultra-Low Impedance PDNs

Optimizing TDR Measurements: Picotest Solutions Integrated with Tektronix Oscilloscopes

Measuring Converter Input Impedance Using Picotest Tools

Mastering 2-Port Impedance Testing with Picotest Products

Loop Analysis Directly from Time-Domain Waveform with SEPIA

Mastering 1-Port Impedance Testing with Picotest Products

How To Measure 3-Port Impedance with Picotest Products

Ultra-Low Impedance Measurement: Testing and Optimizing with the J2114A

Achieving Better Energy Efficiency in AI Data Centers With Power Integrity Testing

Ultra-low Impedance Testing Using the 2-Port Shunt-Through Measurement Technique

“Probing” the Future of Power Integrity Test and Measurement

PDN Impedance Measurements Using Bode 500 and Picotest PDN Probes

How To Video – 2-Port Shunt Through Impedance Calibration with Bode 100 and P2102A

Picotest 2-port Probe Impedance Measurements

ROHDE&SCHWARZ Power Integrity Demo

Picotest Is Exhibiting At DESIGNCON 2024

The Challenge of Measuring a 40 µohm, 2000 Amp PDN With a 2-Port Probe: How Much CMRR is Needed?

VRM Modeling and Stability Analysis for the Power Integrity Engineer

Picotest Pocket TDR Fills Important Niche

Picotest Releases Line of High-Speed Transient Load Steppers for VRM and PDN Validation

Power Integrity: Ensuring Clean and Stable Power Supplies

Load Regulation, Vout/Iout, and Output Impedance

If You Design Anything with a Power Supply, You Need a Vector Network Analyzer

Application Note – Port Saver – The Smart DC Block

Noise Immunity Testing: Unveiling the Power and Benefits of P2124A High-Speed Water-Cooled GaN Probe

J2154A PerfectPulse® Revolutionizing Impedance Testing – Features and Unbeatable Benefits of the New Differential TDR

Test Training Available from Picotest