Active Voltage Probes

Engineers must commonly probe high-frequency signals with high signal fidelity. Typical passive probes with high input R and C provide good response at lower frequencies, but inappropriately load the circuit, and distort signals, at higher frequencies. Active voltage probes feature both high input R and low input C to reduce circuit loading across the entire probe/oscilloscope bandwidth. With low circuit loading, and a form factor that allows probing in confined areas, the active voltage probe becomes the everyday probe for all different types of signals and connection points.

Overview

ZS Series High Impedance Active Probes

The ZS Series probes provide high impedance and an extensive set of probe tips and ground accessories to handle a wide range of probing scenarios. The high 1 MΩ input resistance and low 0.9 pF input capacitance means this probe is ideal for all frequencies. The ZS Series probes provide full system bandwidth with all Teledyne LeCroy oscilloscopes with bandwidths of 4 GHz and lower.

 

Current Probes

Teledyne LeCroy current probes do not require the breaking of a circuit or the insertion of a shunt to make accurate and reliable current measurements. Based on a combination of Hall effect and transformer technology, Teledyne LeCroy current probes are ideal for making accurate AC, DC, and impulse current measurements.

Differential Amplifiers

Differential amplifiers are intended to act as signal conditioning preamplifiers for oscilloscopes and network and spectrum analyzers, providing differential measurement capability to instruments having only a single-ended input. The -PR2 version of each amplifier is a dual channel unit. The DXC series differential input cables are matched to the characteristics of the amplifier.

Differential Probes (<= 1.5 GHz)

Differential active probes are like two probes in one. Instead of measuring a test point in relation to a ground point (like single-ended active probes), differential probes measure the difference in voltage of a test point in relation to another test point

Differential Probes (4-6 GHz)

Differential active probes are like two probes in one. Instead of measuring a test point in relation to a ground point (like single-ended active probes), differential probes measure the difference in voltage of a test point in relation to another test point. Dx10/Dx20/Dx00A-AT 4-6 GHz differential probes are a general purpose probing solution with high input dynamic range and offset.

WaveLink 4-6 GHz Probes

Teledyne LeCroy's WaveLink 4-6 GHz Differential Probes are a general purpose probing solution with high input dynamic range and offset.

Complete Probe System

A value-priced, comprehensive bundle of all items including differential amplifier, solder-in tip, quick connect tip, square pin tip, and positioner (browser) tip, platform/cable assembly, assorted interconnect parts, mounting devices, and other accessories, and a deluxe soft carrying case to hold all items. This makes selection as easy as simply choosing the bandwidth that you require.

High Dynamic Range and Offset

The combination of bandwidth, high input dynamic range and large offset range make the Dx10 & Dx20 ideal for DDR applications.

Deluxe Soft Carrying Case

A deluxe soft carrying case conveniently holds all components of the probe system.

Wide Variety of Tips

Support for solder-in, positioner (browser) tip, quick connect, square pin, and HiTemp solder-in leads allows for flexibility when making connections.

Adjustable Browser Tip

The Adjustable Tip Module, Dx00A-AT, with two highly flexible NiTiNOL alloy tips, allows for easy probing of very dense circuitry.

Differential Probes (8-13 GHz)

Differential active probes are like two probes in one. Instead of measuring a test point in relation to a ground point (like single-ended active probes), differential probes measure the difference in voltage of a test point in relation to another test point. Dxx30 8-13 GHz differential probes medium bandwidth, general purpose probing solution with high input dynamic range and offset.

Differential Probes (13-25 GHz)

Differential active probes are like two probes in one. Instead of measuring a test point in relation to a ground point (like single-ended active probes), differential probes measure the difference in voltage of a test point in relation to another test point. Dxx05-A 13-25 GHz differential probes are the highest bandwith with high performance, large dynamic and offset range, and very low noise.

WaveLink High Bandwidth (13-25) GHz Differential Probes

Teledyne LeCroy's WaveLink 13-25 GHz Differential Probes are a high bandwidth, high performance probe solution with large dynamic and offset range and very low noise

Complete Probe System

A value-priced, comprehensive bundle of all items including differential amplifier, solder-in tips (qty. 2) and positioner (browser) tip (qty. 1), platform/cable assembly, assorted interconnect parts, mounting devices, and other accessories, and a deluxe soft carrying case to hold all items. This makes selection as easy as simply choosing the bandwidth that you require.

High Dynamic Range and Offset

Exceptionally high dynamic range (2.0Vpk-pk) at high bandwidths (up to 25 GHz) and large offset capability as well.

Deluxe Soft Carrying Case

A deluxe soft carrying case conveniently holds all components of the probe system

High-Performance Solder-in Tip

Long-length solder-in tip with field replaceable resistors. External tip resistors locate the tip resistance as close to the point of contact as possible to minimize circuit loading.

Carbon-composite Browser Tips Maximize Signal Fidelity

Carbon fiber composite pogo-pin resistive tips used in the positioner tip locate an ideal distributed resistance at the point of contact. This design is unique to Teledyne LeCroy and provides improved signal fidelity.

Superior Probe Impedance

Circuit and signal loading is reduced by more than 50% compared to other high bandwidth probes. This greatly reduces measurement impact.

High Voltage Differential Probes

Differential active probes are like two probes in one. Instead of measuring a test point in relation to a ground point (like single-ended active probes), differential probes measure the difference in voltage of a test point in relation to another test point.

High Voltage Probes

High voltage probes are suitable for a wide range of applications where high-voltage measurements must be made safely and accurately. There are several fixed-attenuation probes covering a range from 1 kV to 6 kV and varying transient overvoltage ratings. All of these high voltage probes feature a spring loaded probe tip and a variety of standard accessories to make probing high voltages safe and easy. Additionally, all of the high voltage probe have a probe sense pin to automatically configure the oscilloscope for use with the probe.

Optical Probes

Teledyne LeCroy's wide-band multi-mode optical-to-electrical converters are designed for measuring optical communications signals. Their broad wavelength range and multi-mode input optics make these devices ideal for applications including Ethernet, Fibre Channel, and ITU telecom standards. Available to support optical data rates up to 11.3 Gb/s with reference receivers, or slightly higher without reference receivers.

Passive Probes

Passive probes are the standard probe provided with most oscilloscopes. Typical passive probes provide a /10 attenuation and feature a high input resistance of 10 MOhm. This high input resistance means that passive probes are the ideal tool for low frequency signals since circuit loading at these frequencies is minimized. Passive probes are designed to handle voltages of at least 400 V, some as high as 600 V. Teledyne LeCroy passive probes feature an attenuation sense pin which tells the oscilloscope to scale the waveforms automatically requiring no user input.

Probe Parts and Kits

There are a variety of replacement and additional probe parts, tips and accessories

Transmission Line Probes

Transmission line probes are a special type of passive probe designed for use at very high frequencies. They replace the high impedance probe cable found in a traditional passive probe with a precision transmission line, with a characteristic impedance that matches the oscilloscope input (50 Ohm). This greatly reduces the input capacitance to a fraction of a picofarad, minimizing the loading of high frequency signals. A matching network at the tip increases the DC input resistance. While they have lower DC input resistance than a traditional passive probe (usually 500 Ohm) to 5 kOhm), the input impedance of these probes remains nearly constant over their entire frequency range. A traditional /10 passive probe will have a 10 MOhm) input impedance at DC, however this impedance drops rapidly with frequency, passing below the input impedance of a transmission line probe at less than 100 MHz.