N2888A AGILENT TECHNOLOGIES, N2888A Datasheet

TEST PROBE ADAPTER

N2888A

Manufacturer Part Number
N2888A
Description
TEST PROBE ADAPTER
Manufacturer
AGILENT TECHNOLOGIES
Datasheet
1.N2887A.pdf (8 pages)

Specifications of N2888A

Accessory Type
Probe Interface Adapter
For Use With
Half-Channel Soft Touch Connectorless Logic Analyzers And InfiniiMax Probe Amplifiers
Lead Free Status / RoHS Status
na
Introduction
Agilent has developed connector-
less logic analyzer probes based
on Soft touch probing technology.
Connectorless logic analyzer probing
removes the connector that is tradi-
tionally attached to the target board
and replaces it with an array of probe
pods. This reduces the probe load on
the target by eliminating the loading
associated with the physical body of
the connector.
The N2887A and N2888A InfiniiMax
Soft touch probe heads adapt from
the Agilent Pro Series (N2887A) or
Half-channel (N2888A) Soft Touch
Connectorless Logic Analyzer foot
print to the GPO input connectors of
the Agilent InfiniiMax 1130A-1134A
and 1168A-1169A Series probe
amplifier, enabling users to perform
high bandwidth (up to 4 GHz), high
density, multi-channel probing. The
InfiniiMax Soft touch probe heads
offer significant benefits in
reliability, ease-of-use and space
savings provided by the Soft touch
probing technology and the award-
winning InfiniiMax active probes.
Each adapter can support both
the Soft Touch single-ended and
differential footprints and pin-outs.
The support of both single-ended
and differential signals is achieved
by either plugging a single-ended
channel (one connector) into the “+”
N2887A InfiniiMax Soft touch
Pro probe head
input of the InfiniiMax amplifier or by
plugging the differential complements
(2 connectors) into the appropriate
“+” and “-“ inputs of the InfiniiMax
amplifier. There exists a 1:1 mapping
of Soft-touch signal and clock lines
to InfiniiMax amplifier input GPO
connectors—a total of 36 or 18 GPO
connectors is necessary to support
the possible configurations for
N2887A and N2888A respectively.
The probe adapter attaches to the PC
board using a retention module which
ensures pin-to-pad alignment and
holds the probe in place. A kit of five
retention modules is shipped with
Agilent N2887A and N2888A
InfiniiMax Soft touch Probe Head
Data Sheet
channel probe head
each InfiniiMax Soft touch probe
head. Additional kits can be ordered
using Agilent part numbers, E5405-
68702 for Soft touch Pro probe head
and E5396-68702 for Soft touch
Half-channel probe head.
Refer to the “Agilent Technologies
E5400-Pro Series Soft Touch
Connectorless Probes” user’s guide
with the Agilent literature number
E5404-97006 for details of the Pro
Series and Half-channel pin-outs,
footprint dimensions, keep-out
areas, et cetera.
N2888A Infiniimax Soft touch half-

N2888A Summary of contents

Page 1

... This reduces the probe load on the target by eliminating the loading associated with the physical body of the connector. The N2887A and N2888A InfiniiMax Soft touch probe heads adapt from the Agilent Pro Series (N2887A) or Half-channel (N2888A) Soft Touch Connectorless Logic Analyzer foot ...

Page 2

Characteristics Bandwidth(-3dB) Flatness Single Ended Equivalent Load Capacitance <1 pF Differential Equivalent Load Capacitance Single Ended Input Impedance Differential Input Impedance Channel to Channel Coupling Channel to Channel skew* Compatible Agilent InfiniiMax probes *Use N2887-60002 deskew and performance verification fixture ...

Page 3

Figure 1 The N2887A InfiniiMax Soft touch Pro probe head (the InfiniiMax probe amplifier is not included) Figure 2 Frequency response of the N2887A, 3 red = Single-ended, blue = Differential ...

Page 4

Figure 3 Differential Input Impedance plot, input C = ~0.72 pF Figure 4 Time domain differential probe response, purple = input of the probe, green = probe output, using Agilent 1169A InfiniiMax probe and DSO81304B 13 GHz oscilloscope 4 ...

Page 5

Figure 5 Time domain single-ended probe response, purple = input of the probe, green = probe output, using Agilent 1169A InfiniiMax probe and DSO81304B 13 GHz oscilloscope 5 ...

Page 6

... Figure 6 Pin assignment map of the N2887A InfiniiMax Soft touch Pro adapter Figure 7 Pin assignment map of the N2888A InfiniiMax Soft touch half-channel adapter 6 ...

Page 7

... Ordering Information Product number Description N2887A InfiniiMax Soft touch Pro Probe Head N2888A InfiniiMax Soft touch Half-channel Probe Head E5405-68702 Soft Touch Pro Retention Module Kit E5396-68702 Soft Touch Half-channel Retention Module Kit N2887-60002 Deskew and Performance Verification Fixture Multiple form factors from 20 MHz to >90 GHz ...

Page 8

... Spain 34 (91) 631 3300 Sweden 0200- Switzerland 0800 United Kingdom 44 (0) 118 9276201 Other European Countries: www.agilent.com/find/contactus Revised: July 8, 2010 Product specifications and descriptions in this document subject to change without notice. © Agilent Technologies, Inc. 2011 Printed in USA, February 25, 2011 5990-6481EN ...