The Keysight (Agilent) 16861A is a 34-channel portable logic analyzer engineered for digital design debugging and validation in R&D, manufacturing, and field service environments. It combines a compact form factor with dual-mode analysis capability—state and timing—to capture and decode high-speed bus activity across DDR and LPDDR memory standards. The instrument features a 15-inch color touch-screen display, built-in removable SSD, and USB 3.0/LAN connectivity for data transfer and remote operation.
Technical Specifications
• Channels: 34
• State Analysis: Maximum clock rate 350 MHz (standard) or 700 MHz (Option 700); data rate to 700 Mb/s or 1400 Mb/s with Option 700
• Timing Analysis: Conventional sampling to 2.5 GHz (full-channel) or 5.0 GHz (half-channel); timing zoom to 12.5 GHz with 80 ps resolution and 256K memory depth
• Memory Depth: 2 Mb standard; upgradable to 4 Mb, 8 Mb, 16 Mb, 32 Mb, 64 Mb, or 128 Mb (maximum 128 Mpts)
• Trigger Sequencer: 1.4 GHz
• Display: 15-inch (38.1 cm) diagonal color touch-screen
• Storage and Transfer: Removable SSD drive, USB 3.0 ports, LAN port
– Key Features
• Simultaneous eye diagrams on all channels for signal integrity assessment
• Automated threshold and sample position setup for high-speed bus measurements
• Support for DDR4, DDR3, DDR2, DDR, LPDDR4, LPDDR3, LPDDR2, and LPDDR
• Single-ended and differential signal capture
• Upgradable architecture for speed and memory expansion
– Typical Applications
• Memory interface debugging and characterization
• High-speed digital bus analysis
• Protocol validation and signal integrity verification
• Manufacturing test and field service diagnostics
– Compatibility & Integration
Works with U4200A Series single-ended direct connect probes and 90-pin probes (U4201A cable required for 16861A). Requires Keysight Logic Analyzer software version 06.30 or higher. Add-on application software available for advanced analysis. Includes keyboard, mouse, accessories bag, and power cord.
