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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Picotest Releases NISM Stability Tool for Cadence PSpice, Keysight ADS Simulators, and Hardware VNAs and Scopes

Picotest.com, a leader in high-resolution test and measurement equipment, has announced the availability of the non-invasive stability measurement (‘NISM’) software tool for circuit simulators.…
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Article
Picotest’s New P2124A PSRR/PSMR/PSNR Water-Cooled GaN Probe at OFC

Pavel Zivny, Tektronix, explains the Picotest P2124A Noise Immunity Probe test setup shown in the Tektronix booth at the OFC (Optical Networking and Communication…
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Article
Picotest Releases the World’s First Water-Cooled Electrical Probe for High-Speed Test Applications

The P2124A High Speed Line Modulator is the first water-cooled probe for electronics testing. Its creation is yet another testament to Plato’s axiom that…
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Article
Small Signal Models, Small Signal Problems

by Will McCaffrey, Northrop Grumman Published by Signal Integrity Journal The Voltage Regulator Modules (VRMs) are a vital part of any hardware design and critical…
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Article
Capacitor Model Details Key to Measurement Correlation

By Steve Sandler Abstract: Power integrity and system engineers have the task of designing, optimizing, and assessing the power distribution network impedance. EM simulators…
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Article
Ultra-Ultra-Low Impedance (4 micro-ohm) Measurements

By Benjamin Dannan Published by Signal Integrity Journal, July 26, 2022 Companies like Intel, Nvidia, AMD, Qualcomm, and Broadcom are putting more cores on a…
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Article
How Can You Measure a HUGE Inductance with DC Bias?

by Steve Sandler Published by Signal Integrity Journal, May 19, 2022 Most DC/DC converters and switching voltage regulators use filter inductors. The inductors we…
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Article
Do you need thick copper layers in PCBs for high currents? Are you sure? A Talk About Power Integrity and PCB Impacts with Steve Sandler and Robert Feranec

by Steve Sandler Published by Signal Integrity Journal, May 19, 2022 Most DC/DC converters and switching voltage regulators use filter inductors. The inductors we…
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Article
How Oscilloscopes Will Evolve Over the Next 5 Years

Signal Integrity Journal Webinar Series Title: How Oscilloscopes Will Evolve Over the Next 5 Years Date: May 5, 2022 Time: 8am PT / 11am ET Presented by: Steve…
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Article
The Simple Truth about Complex Impedance Probes

by Steve Sandler Originally presented at the 11th Power Analysis & Design Symposium (Live Virtual Event), March 9, 2022 Picotest Power Integrity continues to…
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Article
Determining FPGA Dynamic Load Current

“A Method for Dynamic Load Current Testing with a Benchtop Power Supply” by Steve Sandler Published by Signal Integrity Journal, February 15, 2022 This…
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Article
Measuring the Bulk Dielectric Constant (Dk) on a Microstrip with a TDR

by Benjamin Dannan and Steve Sandler Published by Signal Integrity Journal, January 11, 2022 Most modern circuit designs depend on accurate logic signals at the logic…
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Article
To the Moon and Back

How long does it take to turn on a light if the switch, battery, and light are on the Earth, but the cable connecting…
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Video
Cable Shield Resistance Issue in a 2-port Impedance Measurement

Steve Sandler For this extreme measurement example, I selected a simple problem that has been widely published by myself and many others, including past DesignCon papers. …
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Article
Why EM Is Replacing SPICE For Simulation of Board-Level Power Delivery

Steve Sandler For this extreme measurement example, I selected a simple problem that has been widely published by myself and many others, including past DesignCon papers. …
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Article
App Note: NISM using the P2102A Probe and E5061B VNA

By Benjamin Dannan and Steven Sandler, Picotest.com Control loop stability is critical to the performance of all systems, as it influences all closed loop…
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Article
Make Accurate Impedance Measurements Using a VNA

Three different methods can be applied to accurately measure passive components with a vector network analyzer. By Brian Walker Related To:Copper Mountain Technologies “A…
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Article
Calibrating the 2-Port Probe for Low Impedance PDN Measurements

May 18, 2021 Benjamin Dannan and Steve Sandler “High speed printed circuit board (PCB) design requires well-designed power delivery networks (PDN) to support today’s FPGAs or…
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Article
App Note: 2-Port Impedance Measurement using the P2102A Probe and Copper Mountain Technologies 2-Port VNA

By Benjamin Dannan and Steven Sandler, Picotest.com High-speed Printed Circuit Board (PCB) design requires well-designed Power Delivery Networks (PDN) to support today’s FPGAs and…
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Article
Picotest P2102A 2-Port Probe Calibration with the Copper Mountain VNA

This video looks at how to perform a full calibration on the Copper Mountain Compact 2-port VNA using the Picotest P2102A 2-port probe and…
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Video
App Note: 2-Port Impedance Measurement using the P2102A Probe and E5061B VNA

By Benjamin Dannan and Steven Sandler, Picotest.com High speed Printed Circuit Board (PCB) design requires well designed Power Delivery Networks (PDN) to support today’s…
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Article
Tektronix App Note: Measuring the Control Loop Response of a Power Supply Using an Oscilloscope

Download the latest app note from Tektronix… “Most power supplies and regulators are designed to maintain a constant voltage over a specified current range. They…
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Article
DesignCon Spring Break Webinar Series: Power Integrity: Analyze Impedance to Improve Power Delivery, SI & EMI

Overview Title: Power Integrity: Analyze Impedance to Improve Power Delivery, SI & EMI Available on demand Duration: 1 hour Summary Join DesignCon in this webinar series presented by…
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Article
App Note: 2-Port Impedance Measurement using the P2102A Probe and Bode 100 VNA

By Benjamin Dannan and Steven Sandler, Picotest.com High speed Printed Circuit Board (PCB) design requires well designed Power Delivery Networks (PDN) to support today’s…
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Article
New P2102A 2-Port Probes, Changes How Impedance is Measured for Power Integrity and PDN Applications

February 15, 2020 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has released a new 2-port ‘Browser’ probe especially designed…
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Article
Picotest Announces Online Video Training Course on Power Supply and Power Integrity Testing

January 28, 2021 Phoenix, AZ: We have released an online, on-demand training course – Master the Fundamentals of Power Integrity and Power Supply Testing. The…
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Video
Measuring pH and fF With a TDR Using a Cursor Measurement

“The time domain reflectometer (TDR) is an instrument that is often used to measure printed circuit board (PCB) test coupons and cable impedance. The…
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Article
Thinking about doing PCB Layout Simulations? This May Help

What you are expecting may be completely different from what is happening on your PCB. This hour-long video is packed with discussions about PCB…
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Video
The Goldilocks TDR

Those that know me, know that I like things that, on a scale of one to ten, go to eleven. For the youngsters out…
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Article
Why specialized PDN Cable® is Essential for your Power Integrity Impedance Testing

This short video discusses the feature set your cabling needs to get PDN impedance measurements correct. A coaxial instrument cable must do five things…
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Video
Copper Mountain Technologies’ VNAs Gain Non-Invasive Stability Measurement – NISM

July 24, 2020 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has announced the availability of new software that brings…
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Article
Just How Fast is GaN Fast?

“I recently designed an ultra-high speed, low-impedance pulse generator (Figure 1). I wanted it for evaluating oscilloscope probe performance [1], [2] and for determining…
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Article
Characterizing LED Performance with a Frequency Response Analyzer and Line Injector

This application note series by Steve Sandler explores the measurement of the dynamic resistance of an LED and how to create a usable SPICE…
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Article
New PDN Cables Support Accurate 2-Port Shunt-Through Impedance Measurement

We have released a new interconnect cable specially designed for power distribution network (PDN) impedance testing. “What’s unique about these cables is that they…
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Article
New J2161A Brings 2-Port Shunt-Through Impedance Measurement to Scopes

August 7, 2019 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has released the J2161A, 2-Way Wideband Active Splitter. This accessory…
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Article
New Common Mode Transformer Solves PDN 2-Port Shunt-Through Measurement Hurdle

We have released an updated common mode transformer, or ground loop isolator, that provides the best isolation for low-impedance power distribution network (PDN) measurements.…
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Article
Picotest Expands Line of PSRR Line Injectors Adding Inductor and Input Impedance Testing

We have released a new line injector for PSRR (power supply rejection ratio), DC-biased inductor, and DC-DC converter input impedance testing. The J2121A is…
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Article
Webinar: Copper Mountain VNA Impedance Measurement for Power Distribution Networks

Almost all modern circuits are sensitive to power quality, which to a large extent is a measurement of the power rail impedance. This is…
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Article
Capacitor Coupling for Minimum Impedance

It is well known that the mounting loop of a capacitor owns the major share in parasitic inductance [1]. A practical capacitor when mounted in…
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Article
New Fast Edge TDR in a Portable Package Supports PCB Coupon Testing and Instrument Calibration

We have released a new, low-cost, pocket-sized, fast-edge signal generator and TDR in one convenient package. “Such a high speed, precise TDR/TDT has never…
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Product

Impedance

Picotest Releases NISM Stability Tool for Cadence PSpice, Keysight ADS Simulators, and Hardware VNAs and Scopes

Picotest’s New P2124A PSRR/PSMR/PSNR Water-Cooled GaN Probe at OFC

Picotest Releases the World’s First Water-Cooled Electrical Probe for High-Speed Test Applications

Small Signal Models, Small Signal Problems

Capacitor Model Details Key to Measurement Correlation

Ultra-Ultra-Low Impedance (4 micro-ohm) Measurements

How Can You Measure a HUGE Inductance with DC Bias?

Do you need thick copper layers in PCBs for high currents? Are you sure? A Talk About Power Integrity and PCB Impacts with Steve Sandler and Robert Feranec

How Oscilloscopes Will Evolve Over the Next 5 Years

The Simple Truth about Complex Impedance Probes

Determining FPGA Dynamic Load Current

Measuring the Bulk Dielectric Constant (Dk) on a Microstrip with a TDR

To the Moon and Back

Cable Shield Resistance Issue in a 2-port Impedance Measurement

Why EM Is Replacing SPICE For Simulation of Board-Level Power Delivery

App Note: NISM using the P2102A Probe and E5061B VNA

Make Accurate Impedance Measurements Using a VNA

Calibrating the 2-Port Probe for Low Impedance PDN Measurements

App Note: 2-Port Impedance Measurement using the P2102A Probe and Copper Mountain Technologies 2-Port VNA

Picotest P2102A 2-Port Probe Calibration with the Copper Mountain VNA

App Note: 2-Port Impedance Measurement using the P2102A Probe and E5061B VNA

Tektronix App Note: Measuring the Control Loop Response of a Power Supply Using an Oscilloscope

DesignCon Spring Break Webinar Series: Power Integrity: Analyze Impedance to Improve Power Delivery, SI & EMI

App Note: 2-Port Impedance Measurement using the P2102A Probe and Bode 100 VNA

New P2102A 2-Port Probes, Changes How Impedance is Measured for Power Integrity and PDN Applications

Picotest Announces Online Video Training Course on Power Supply and Power Integrity Testing

Measuring pH and fF With a TDR Using a Cursor Measurement

Thinking about doing PCB Layout Simulations? This May Help

The Goldilocks TDR

Why specialized PDN Cable® is Essential for your Power Integrity Impedance Testing

Copper Mountain Technologies’ VNAs Gain Non-Invasive Stability Measurement – NISM

Just How Fast is GaN Fast?

Characterizing LED Performance with a Frequency Response Analyzer and Line Injector

New PDN Cables Support Accurate 2-Port Shunt-Through Impedance Measurement

New J2161A Brings 2-Port Shunt-Through Impedance Measurement to Scopes

New Common Mode Transformer Solves PDN 2-Port Shunt-Through Measurement Hurdle

Picotest Expands Line of PSRR Line Injectors Adding Inductor and Input Impedance Testing

Webinar: Copper Mountain VNA Impedance Measurement for Power Distribution Networks

Capacitor Coupling for Minimum Impedance

New Fast Edge TDR in a Portable Package Supports PCB Coupon Testing and Instrument Calibration