The Agilent/Keysight 5006A Signature Analyzer is a digital circuit troubleshooting instrument that employs patented signature analysis to rapidly isolate faults in complex systems. The instrument captures a compressed four-digit signature representing the digital data stream at any logic node, then compares measured signatures against known-good references to identify faulty components or logic states without analyzing entire bit streams.
Technical Specifications
• Maximum Clock Frequency: 25 MHz
• Signature Resolution: Compressed four-digit signatures derived from 16-bit cyclic redundancy codes (CRCs) of data blocks
• Logic Family Support: Compatible with multiple logic families; TTL trigger thresholds standard with field-selectable CMOS sense input
• Minimum Pulse Width Detection: 10 nanoseconds
• Signature Memory Capacity: Thirty-two sequential signatures with recall, edit, and overwrite capability
• Composite Signature: Automatically accumulates all triggered signatures since last clear or power-up; updates when memory is edited
• Pulse Stretching: 100 millisecond stretching available for Gate and Unstable indicators
• Signature Latch: Selectable hold function retains displayed signature until replaced or manually cleared
• Unstable Signature Latch: Selectable function for capturing unstable measurement conditions
– Key Features
• Windowed signature collection enables fault isolation in specific modules or devices within complex circuits
• Probe provides real-time logic level indication (High, Low, Open) with pulsing status and 100 msec stretching
• Probe switch directly initiates signature entry into memory
• Status indicators for Composite Signature, Gate, and Unstable states
• Reference signatures obtained from operational circuits or external stimulation sources
– Typical Applications
• Production test and repair
• Depot repair operations
• Field service troubleshooting
– Compatibility & Integration
Fully programmable via HP-IB (IEEE 488) interface for remote measurement and control. Optional HP-IL interface support available.
