Logic Analyzers

What Is a Logic Analyzer

A logic analyzer captures digital signals from a system under test and displays them as logic states versus time. Signals are sampled relative to a user-defined threshold, allowing the analyzer to determine whether each channel is in a logic high or logic low state.

Captured data is stored in deep acquisition memory and displayed as timing diagrams, state transitions, or decoded protocol frames. This allows engineers to identify logic errors, timing violations, bus contention, and communication faults that are difficult to diagnose using other instruments.

Logic Analyzer Architecture and Operation

Logic analyzers are designed to handle large numbers of digital channels while maintaining precise timing accuracy. Core architectural components include:

• High-speed digital comparators for logic threshold detection
• Deep acquisition memory for long capture windows
• Advanced trigger engines for event-based acquisition
• Clocking systems for synchronous and asynchronous capture
• Digital signal processing for protocol decoding and analysis

These systems allow engineers to isolate specific events and analyze system behavior under real operating conditions.

Types of Logic Analyzers We Offer

Timing Logic Analyzers

Timing logic analyzers sample all input channels against an internal clock. They are used to analyze relative timing relationships, propagation delays, and asynchronous signal behavior.

These analyzers are ideal for troubleshooting race conditions, setup and hold violations, and general digital timing issues.

State Logic Analyzers

State logic analyzers sample input signals based on an external clock or system bus clock. This allows accurate capture of bus transactions and state changes synchronized to system operation.

State analysis is commonly used for debugging microprocessor buses, memory interfaces, and synchronous digital systems.

Portable and Modular Logic Analyzers

Portable and modular logic analyzers provide flexibility for field diagnostics, bench debugging, and integration into automated test systems. These units often support USB or network connectivity and offer scalable channel counts.

They are commonly used in service environments and compact development labs.

Mixed Signal Analysis Systems

Mixed signal analysis systems combine logic analyzer functionality with analog measurement capabilities. These systems allow engineers to correlate digital logic states with analog signal behavior for deeper system-level insight.

They are especially valuable for debugging embedded systems that integrate digital logic with analog front ends.

Key Technical Parameters Engineers Evaluate

When selecting a logic analyzer, engineers focus on several critical performance characteristics:

• Number of digital channels supported
• Maximum timing and state sample rates
• Memory depth and capture duration
• Trigger capabilities and complexity
• Logic threshold voltage support
• Protocol decoding options
• Data export and analysis features

Selecting a logic analyzer with sufficient channel count and timing resolution is essential for accurate system-level debugging.

Logic Analyzer Brands We Sell

Aumictech supplies logic analyzers from established manufacturers trusted in digital and embedded system development.

• Tektronix
Logic analyzers and mixed signal platforms for embedded and digital system analysis

• Keysight Technologies
High-performance logic analyzers with advanced triggering and protocol decoding

• Agilent Technologies
Legacy and laboratory-grade logic analyzers widely used in development environments

• LeCroy
Digital and mixed signal analysis systems supporting complex protocol debugging

• Yokogawa
Precision digital analysis tools used in industrial and research applications

Used and Laboratory-Grade Logic Analyzers

Many logic analyzers remain valuable for years due to their stable architectures and protocol support. Professionally sourced used and refurbished logic analyzers provide a cost-effective solution for maintaining development capability and supporting legacy systems.

These instruments are commonly deployed in universities, semiconductor labs, embedded development teams, and electronics service facilities.

Why Logic Analyzers Are Critical

As digital systems continue to increase in complexity, observing logic behavior across multiple signals becomes essential. Logic analyzers enable engineers to visualize digital interactions, verify protocol compliance, and diagnose timing-related faults that cannot be detected through software alone.

From embedded firmware development to high-speed digital system validation, logic analyzers remain a foundational tool for reliable and efficient hardware debugging.