Specifications
2
16850 Series Portable Logic Analyzer Selection Guide
Specifications and 
characteristics
16851A 16852A 16853A 16854A
Channels 34 68 102 136
Maximum timing sample rate 
(half/full channel)
5 GHz (200 ps) with up to 256 M depth
2.5 GHz (400 ps) with up to 128M depth
High-speed timing zoom 12.5 GHz (80 ps) with 256 Kb depth
Trigger sequencer 1.4 GHz
Maximum state clock rate 700 MHz with Option 700
350 MHz standard
Maximum state data rate 1400 Mb/s with Option 700
700 Mb/s standard
Maximum memory depth  2 M default
4 M with Option 004
8 M with Option 008
16 M with Option 016
32 M with Option 032
64 M with Option 064
128 M with Option 128
Supported signal types Single-ended, differential
Automated threshold/sample 
position
Yes
Simultaneous eye diagrams, all 
channels
Yes
Probe compatibility Direct connect single-ended flying lead
Mictor and Soft Touch Pro connectorless
90-pin connector single-ended and differential 
probes for flying lead, Mictor, Soft Touch, Soft 
Touch Pro, and Samtec connections (used in 
conjunction with a U4201A cable)
Select DDR2/3 BGA probes and probe cables
Select DDR3 Addr/Cmd slot interposer probes
• 80 ps resolution (12.5 GHz) Timing 
Zoom with 256 K samples allows 
you to observe signal timing in 
proximity to the trigger point
• Up to 1.4 Gbps state data rate 
tracks high speed parallel and 
serial buses in your design 
• Gain signal integrity insight on all 
channels using exclusive 
“eye scan” 
• Four models with 34/68/102/136 
channels provide the measure-
ment flexibility for a wide range of 
applications
• Application support for many 
aspects of today’s complex designs 
bring target insight FPGA dynamic 
probe, and digital VSA (vector 
signal analysis) 
• Powerful, customizable triggering 
quickly isolates problems
• Proven, easy to use interface 
speeds debug
• Standard 15 inch touch screen 
allows viewing of multiple buses 
and signals
• Standard 3-year warranty










