The Yokogawa 701989 Logic Probe is an 8-bit digital signal acquisition probe engineered for integration with Yokogawa logic analyzers. Operating at 250 MHz bandwidth, it captures and analyzes high-speed digital signals with precision. The probe connects directly to circuits under test via eight individual probe leads and dual common ground terminals, delivering low-noise measurements through 100 kΩ input impedance and 3 pF typical input capacitance.
Technical Specifications
• Model: 701989 (PBL250)
• Channels: 8-bit
• Bandwidth: 250 MHz
• Input Resistance: 100 kΩ
• Input Capacitance: 3 pF (typical)
• Minimum Detectable Signal: 300 mVp-p
• Threshold Range: ±6 V
• Maximum Non-Destructive Input: ±40 V (DC + AC peak)
• Dimensions: 94.5 mm × 40 mm × 15 m; total length approximately 1.7 m
• Weight: Approximately 200 g (excluding accessories)
• Warm-up Time: 30 minutes minimum
– Key Features
• Factory-integrated cable and probe lead set; replacement with non-Yokogawa components voids accuracy guarantees
• Eight probe leads with two common GND terminals and 250 mm ground leads
• Removable GND terminal adapter for non-adjacent ground connections
• Power supplied directly from logic analyzer probe interface; no external supply required
• Robust construction rated for ±40 V non-destructive input handling
– Typical Applications
• Real-time capture of 8-bit parallel digital signals on logic analyzers
• High-speed circuit debugging and timing analysis up to 250 MHz
• Direct-to-board probing via 2.54 pitch pin headers
• Multi-channel synchronous signal acquisition
– Compatibility & Integration
Designed for Yokogawa logic analyzer platforms. Compatible accessories include Mini Clip Passive Probe Tip (B9852CR), Logic Probe IC Pin Clips (B9852ES), and Logic Probe Accessory Kit (701909). Never disconnect probe from analyzer while connected to circuit under test. Proper instrument grounding is mandatory; probe GND shares potential with analyzer ground reference.
