Soft Touch Connectorless
Logic Analyzer Probes
Agilent models Half-size Soft Touch: E5396A, E5398A
Soft Touch: E5387A, E5390A, E5394A
Pro Series: E5402A, E5404A, E5405A, E5406A
Maximize Reliability, Minimize
Intrusion with Connectorless
Logic Analyzer Probes
Accurate, easy logic analyzer
measurements start at the
probe tips. The Agilent E5300A
Series and E5400A Pro Series soft
touch probes meet the demand
for accuracy and reliability while
providing a connectorless
attachment to your device. Quick,
easy and repeatable signal access
is achieved without designing in
a connector. From basic state and
timing analysis to resolving signal
integrity problems in high-speed,
low-amplitude signals, these
low-intrusive probes help digital
design engineers tackle their
debug challenges.
Make Reliable Connections
The probe’s micro spring-pin
technology provides reliable
contact to signal pads, even when
probing uneven printed circuit
boards or contaminated surfaces.
Soft touch probes eliminate the
need for gold plating or special
board processes, stiffeners,
handling and cleaning.
Features Benefits
Top mount retention module Improves reliability and accommodates varying circuit
board thicknesses
Pliable micro spring-pin design Easily attach; get reliable contact even for contaminated
or uneven board surfaces
High density signal access in a small Easily integrate into compact designs with 17-channel or
footprint 34-channel models. A low profile (right angle) version is
also available.
Easy routing layout Streamline design flow and eliminate stubs; ensure
constant differential mode impedance
< 0.7 pF capacitive loading, Acquire high-speed signals without
> 2.5 Gbits/s rate impacting performance of your circuit
Supports differential or single-ended Obtain differential capability; overcome signal integrity
signals problems at high speeds
Table 1. Breakthrough soft touch connectorless probes features and benefits
Save Circuit Board Space
The Agilent E5400 Pro Series
supports the new industrystandard interface for smaller
connectorless probing. Their
www.agilent.com/find/softtouch
Figure 1. Soft touch connectorless technology is available for Agilent’s entire line of logic analyzers.
footprint is 30% smaller than
our original soft touch probes.
They also do not require any
keepout area on the back side of
the board, resulting in even
greater space saving.
www.agilent.com
Simplify Signal Routing
The soft touch probe footprint
allows flow-through routing of
differential pair transmission
lines as seen in Figure 2. This
maintains constant separation
between the two traces in each
pair, thus ensuring constant
differential-mode impedance.
Also, flow-through routing
eliminates stubs.
Minimize Signal Disturbance
< 0.7 pF capacitive loading
ensures that your high-speed
target system continues to
maintain its tight timing margins
with the soft touch probe attached.
Logic Analyzer Compatibility
Agilent E5402A, E5405A,
E5406A, E5387A and E5390A are
compatible with logic analyzers
with 90-pin cable connectors
• 16950A, 16950B, 16951B
• 16760A
Agilent E5404A, E5394A are
compatible with logic analyzers
with 40-pin cable connectors
• 16910A/16911A
• 16800 Series
• 1680 Series
• 1690 Series
Related Literature
Publication Title Publication Type Publication Number
Probing Solutions for Logic Analysis Systems Product Overview 5968-4632E
Agilent Technologies 16900 Series Color Brochure 5989-0420EN, ENUS
Logic Analysis Systems
Agilent 16800 Series Logic Analyzers Color Brochure 5989-5062EN
Soft Touch Connectorless Probes User’s Guide E5387-97005
Pro Series Connectorless Probes User’s Guide E5404-97004
www.agilent.com/find/softtouch
Retainer used for alignment and retention only
4-point “crown” tip makes reliable
connection, even through contamination
Individual micro spring-pins adjust to
target planarity
Figure 4. The probe’s micro spring-pin technology provides reliable contact to signal
pads, even when probing uneven printed circuit boards or contaminated surfaces.
Figure 3. 34-channel soft touch
connectorless footprint comparisonFigure 2. E5394A 34-bit routing
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Product specifications and descriptions in this
document subject to change without notice.
© Agilent Technologies, Inc. 2006
Printed in USA, November 1, 2006
5988-8128EN
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