Logic Analyzer


A logic analyzer captures digital data from a digital system and presents it to a user so that the user can locate failure of the digital system.

A HP 1630D Logic Analyzer showing a timing diagram.The basic problem that a logic analyzer solves is that a digital circuit is too fast to be observed by a human being, and has too many channels to be examined with an oscilloscope.

A logic analyzer would trigger on a complicated sequence of digital events, and then copy a large amount of digital data from the system under test. The best logic analyzers behaved like software debuggers (showing the flow of the computer program), or oscilloscopes.

When logic analyzers first came into use, it was common to attach several hundred "clips" to a digital system. Later, specialized connectors came into use. In modern computer systems various other tools have made logic analyzers obsolete for many uses. For example, many microprocessors have hardware support for software debuggers. Many digital designs, including those of ICs, are simulated to detect defects before the unit is constructed. The simulation usually provides logic analysis displays. Often, complex discrete logic is verified by simulating inputs and testing outputs using boundary-scan logic. None of these exactly reproduce the high-speed data capture function of a logic analyzer, but they cover most real needs for debugging digital circuits

Important logic analyzer products:

Manufacturer Model Condition Description Specs
Agilent 16701B 3rd party pre-owned Logic Analysis Expansion Frame 16701B
Agilent 16701B 3rd party pre-owned Logic Analysis Expansion Frame 16701B
Agilent 16700A 3rd party pre-owned Logic Analysis System Mainframe 16700A
Agilent 1662A 3rd party pre-owned 68 Channel Portable logic Analyzer 1662A
Agilent 1660CS 3rd party pre-owned 136 Channel Benchtop Logic Analyzers 1660CS
Agilent 1660CP 3rd party pre-owned Not-on-file(other-mfr) 1660CP
Agilent 16602A 3rd party pre-owned 102 Channel Logic Analysis System Mainframe 16602A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16601A 3rd party pre-owned 136 Channel Logic Analysis System Mainframe 16601A
Agilent 16557D 3rd party pre-owned 68-Ch 135/500MHz Logic Analyzer Module 2M Memory 16557D
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Logic Analyzers by different manufacturers: