ZS Series High Impedance Active Probes
Media contact: Patrick Brightman - SGW (973) 263-5475
Editors’ Technical contact: Dan Monopoli (845) 578-6094
Customer contact: LeCroy Customer Care Center (800) 453-2769
LeCroy Announces High Impedance ZS Series Active Probes
with Extensive Probe Tip and Grounding Accessories
Chestnut Ridge, NY, October 2nd, 2006
LeCroy® Corporation introduces a new family of single-ended active probes featuring a high input resistance
of 1 MΩ and low input capacitance of 0.9 pF. These two new probes, the ZS1500 (1.5 GHz) and ZS1000
(1 GHz) maintain full system bandwidth at the probe tip when used with the newest WaveRunner Xi,
WaveSurfer Xs, 1 GHz, and 600 MHz oscilloscopes.* Additionally, the ZS family of probes has the most
extensive range of standard and optional probe tips and ground accessories of any probe in its class to
address the full spectrum of today’s difficult probing scenarios.
The ZS probe series also features a unique form factor and mechanical design that is not only small, but also
specifically designed for probing consecutive square pins. With this form factor, several square pins can be
probed by interlocking the probes, making for the ultimate hands-free probing solution.
High Impedance (High Input R, Low Input C) Minimizes Circuit Loading
Anytime a probe is connected to a circuit, the circuit is loaded down. Standard passive probes feature a high
input resistance and are designed to minimize the loading at low frequencies; however, at higher
frequencies, the input capacitance (~10X that of the ZS Series) of the probe begins to load the circuit. The
solution to this problem is to use a high impedance active probe like the ZS series. These probes, with their
high 1 MΩ input resistance and low 0.9 pF input capacitance, minimize the circuit loading across the entire
probe and oscilloscope bandwidth.
Extensive Standard and Available Probe Tips Make Probing Easy
With probe tips and ground leads designed for both general purpose and specific uses, the ZS series probes
are extremely versatile, going above and beyond the probing capabilities of passive probes or other active
probes on the market today. Unlike other High Z, Active FET probes, The ZS Series has a wide variety of
standard and available tip accessories:
• Sharp Probe Tip (standard) is ideal for general purpose browsing.
• Bent Sharp Tip (available) is perfect to probe in tight spaces.
• Discrete SMD Tip (available) creates a reliable connection on surface mount resistors, capacitors, or
• IC Lead Tip (available) assists in probing small geometry IC legs. The IC Lead Tip can be wedged
between two legs; and the insulated back side of this tip prevents any shorting between test points.
Various additional flexible leads and clips, such as right-angle leads, Y-adapters, and sprung hooks, are also
supplied to allow for probing test points that may be spaced farther apart.
The standard configuration of tips and ground connections for both the ZS1000 and ZS1500 includes:
Sharp Probe Tip 4
Offset Ground Lead 2
Sprung Hooks 2
Ground Blade 1
Copper Pads 2
Right Angle Connector 1
Right Angle Short Lead 1
Right Angle Long Lead 1
Y Lead Adapter 1
Color Marking Bands 1 (Set)
Innovative Grounding Solutions Provide the Highest Signal Fidelity
Making a good ground connection is just as important as accessing the right test point. Keeping the ground
loop short is critical. The ZS probes provide several grounding capabilities to provide the highest signal
fidelity by shortening the ground loop and eliminating the effect of that loop on the signal. The following
ground connections are provided as standard or are available for any ZS Series probe:
• Ground Blade/Copper Pad (standard) consists of a unique ground blade that connects to a copper
pad installed on the component to be probed. This provides the shortest ground loop possible and
provides a pulse response which cannot be achieved with traditional long ground leads.
• Offset Ground (standard) is a “twisted-Z” shape to probe signal and ground points that are extremely
• Right Angle Connector (standard) can plug directly onto the probe or at the end of a flexible lead
and will fit directly on top of a square pin for a stable connection to that pin.
• Bendable Pogo Tip Ground (available) can be shaped to access a ground point that is hard to
• Solder-In Ground (available) is a short length of wire fitted with a pin that connects directly to the
ground socket of the ZS probe; great for when the same ground point is used repeatedly
• Square Pin Ground Spring (available) is great for connecting to ground directly next to or behind the
square pin being probed
Great High Impedance Probes with Extensive Tip and Ground Accessories
Overall the ZS series probes feature the right electrical characteristics and probe accessories to address a
large number of measurement scenarios. The high input resistance and low input capacitance minimize
circuit loading across the entire probe bandwidth. The wide range of probe tips and ground accessories
allow for probing many types of test points in today’s circuits. These specifications and accessories combine
to make the ZS series of high impedance active probes the right tool for a wide range of probing scenarios.
Engineers who would like to know more can contact LeCroy at 1-800-5LeCroy (1-800-553-2769) or visit
* The ZS probe series is compatible with all LeCroy X-Stream oscilloscopes running the latest firmware.