The oscilloscope can be viewed as essentially a voltmeter that incorporates a dynamic display. But the oscilloscope can also make use of a current probe to convert current information into corresponding voltage potentials displayed in units of Amperes. The current-to-voltage conversion takes place within the current probe which operates like the electrician’s clamp-on ammeter. The […]
Basics of oscilloscope probes – Part one
Engineers know what an oscilloscope probe is. It basically permits the user to measure the voltage at any terminal or wire and display the waveform. It usually incorporates a needle point that is capable of getting into a tight place without shorting out to another pin, wire or grounded surface. And it can be equipped […]
High-speed differential probes handle DDR5, LPDDR5 memory signals
The MX0023A InfiniiMax RC is a new high-speed differential probing solution for Double Data Rate 5 (DDR5) and Low Power Double Data Rate 5 (LPDDR5) memory. As data rates of mobile bus systems increase, the edge speed of the signal gets faster, thus requiring higher bandwidth probe solutions. At the same time, many systems deploy […]
Basics of active and differential scope probes
By far the most used oscilloscope probes are the passive 10:1 attenuation probe. It is appropriate when the frequency of the signal under investigation is less than 600 MHz. Impedance matching from the probe tip to channel input port is critical. A mismatch gives rise to reflections, collisions and loss of data. At dc to […]
Probing Small Signals on a High-Voltage Bus
Subtleties of scope probes can lead to garbled measurements when examining power circuits. KEN JOHNSON, DAVID MALINIAK, TELEDYNE LECROY CORP. When an oscilloscope is used for debugging, validation, or device characterization, measurements generally take place with the help of a scope probe. There are several types of scope probes because manufacturers optimize different types for […]
Saelig to stock Teledyne LeCroy HVD3000A Series 1-6kV high-voltage differential probes
The Teledyne LeCroy HVD3000A High-voltage Differential Probes – the 1kV HVD310xA, the 2kV HVD3206A, and the 6kV HVD3605A — are now stocked by Saelig Co. Inc. These probes provide excellent CMRR over a broad frequency range to simplify the measurement challenges found in noisy, high common-mode power electronics environments. The probe’s design makes it easy […]
First 56-GBd optical probes for real-time scopes help troubleshoot 400G PAM4 components
The industry’s first 56 GBd 400G PAM4 optical probe is designed for use with Tektronix DPO70000SX Series real-time oscilloscopes. The new 59 GHz DPO7OE2 single-mode optical probe delivers the performance and advanced debug capabilities designers need to troubleshoot 400G PAM4 components and reduce time to market. Compared to 100G with NRZ modulation, 400G with PAM4 […]
Scope optical modules boast high sensitivity, low noise
Two new optical modules for the Tektronix DSA8300 sampling oscilloscope offer the industry’s highest sensitivity and lowest noise, helpful for analyzing 400G designs moving into production. Tektronix also announced enhanced support for the latest 400G PAM4 TDECQ measurements with a software package optimized for 4 channel parallel processing for high throughput manufacturing test. “As 400G […]
Optical probe, analysis software excels at dissecting PAM4 modulation
The DPO7OE1 is a calibrated optical probe and analysis software package for use with real-time oscilloscopes. Developed by Tektronix, it is optical reference receiver-(ORR) compliant for 28-GBaud PAM4 applications and supports IEEE/OIF-CEI standard specific measurements. It complements Tektronix optical PAM4 analysis tools for sampling oscilloscopes, giving design teams efficient test solutions for all stages of […]
