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

October 15, 2019 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has released a new interconnect cable especially designed for power distribution network (PDN) impedance testing.“What’s unique about these cables is that they offer an unmatched combination of low loss, flexibility, and low shield resistance. “The cables target ultra-low impedance measurement and maintain flexibility while providing outstanding shielding, low shield resistance and 18GHz performance,” stated Steve Sandler, CEO of Picotest.The Picotest PDN Cable is designed to support the 2-port shunt-through impedance measurement. The cables target PDN applications…

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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 enables the 2-port shunt-through impedance measurement on oscilloscopes. Traditionally, this measurement has been performed on Vector Network Analyzers (VNAs) or Frequency Response Analyzer (FRAs). But oscilloscopes, such as the Tektronix Series 5 and 6 scopes, offers a software add-on (5/6-PWR software) to enable this measurement in the frequency domain. The 2-port measurement is the ‘Gold Standard’ test for Power Distribution Network impedance in the microohm…

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Picotest Bundle Supports Tektronix, Keysight, Siglent, and Rohde & Schwarz Scope FRA Features – Bode Plots and PSRR Testing

July 22, 2019 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has released a new ‘FRA Bundle’ of signal injectors that enables Bode plots and PSRR (power supply rejection ratio) measurements for Keysight, Tektronix, Siglent, and Rohde & Schwarz oscilloscopes. “Traditionally Bode plots and PSRR measurements have been made on Vector Network (VNA) or Frequency Response Analyzers (FRA). But recently scope manufactures have begun to add FRA features to oscilloscopes, expanding their measurement capabilities. While the software add-ons enable new FRA features, without our injectors end-users…

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Rohde & Schwarz ZNL VNA Gains Non-Invasive Stability Measurement

July 10, 2019 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has announced the availability of new software that brings the unique non-invasive stability test capability to the Rohde & Schwarz ZNL and ZNLE vector network analyzers. The software add-on, available now for new or existing customers, allows the instrument to perform non-invasive stability margin (“NISM”) measurement. NISM is an alternative to a Bode plot measurement that allows the user to test circuit or filter stability even when the control loop is not accessible. It determines…

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

February 25, 2019 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has released an updated common mode transformer, or ground loop isolator, that provides the best isolation for low impedance power distribution network (PDN) measurements. The new adapter, the J2102B, has an increased frequency range and eliminates the DC ground loop from 1Hz up to 6GHz. The high frequency response supports the 2-Port Shunt-Through impedance measurement required for PDNs. The J2102B works with any network analyzer or oscilloscope. The simplest and most effective method for eliminating a…

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

January 22, 2019 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has released a new line injector for PSRR (power supply rejection ratio), DC biased inductor, and DC-DC converter input impedance testing. The J2121A is especially suited to high power applications. It can be used with input bus voltages up to 400V and supply up to 20A. It supports testing up to a 1MHz bandwidth and works with any vector network analyzer (VNA). “The higher power of the J2121A provides support to military and satellite buss applications.…

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Picotest Releases Unique and Versatile PCB Clamping Solution

January 8, 2019 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has released a new, hyper-versatile, and handy clamping solution for printed circuit board soldering, testing, assembly, and probing. “Compared to ClampMan, hands-free clamping solutions have been in the dark ages. Nothing is in its class; nothing has ever been available with this level of quality, flexibility and functionality,” according to Steve Sandler, Picotest CEO. ClampMan is an ideal fit for clamping PCBs during lab tests and measurements. It can be used to clamp energized PCBs, relays,…

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NIST Traceable Certification for 10.5GHz TDR in a Flashdrive

We asked a 3rd party calibration lab to provide NIST traceable performance data for our new J2151A PerfectPulse Fast Edge Signal Generator.  Their data confirms our 10.5GHz published edge speed.  The test data also confirms the 500mV and the flatness at 1GHz and 2GHz are 0.25dB and 0.37dB respectively. For more information please see https://www.picotest.com/products_J2151A.html

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

June 6, 2018 Phoenix, AZ: Picotest.com, a leader in high resolution test and measurement equipment, has 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 before been available in this portable form, requiring only a USB power source, and at this price point,” according to Steve Sandler, Picotest CEO. The PerfectPulse signal generator provides an ultra-fast, square, 32ps edge pulse. The -500mV, 50 Ohm output signal (trimmed for accuracy) is very square, without overshoot or…

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Switched-Mode Power Supply Simulation with SPICE:

February 2, 2018, Phoenix, Arizona: In a reprint of Steve Sandler’s classic technical book, PWM models and power supply simulation solutions are described in depth–with special attention paid to practical magnetic components. All common topologies are discussed, including linear, buck and flyback converters. Practical guidance is given for EMI/RFI filtering and magnetics design and analysis. Most of the book’s code (available to book purchasers) will run, unaltered, on all of popular SPICE versions, including PSpice, LTspice, and Tina. Sometimes maligned, SPICE can provide very accurate results that correlate with real circuit…

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