The Teledyne LeCroy HVFO108 is a 150 MHz high-voltage fiber optic probe engineered for precision measurement of small signals floating on high-voltage buses. Optical isolation eliminates loading effects on the Device Under Test while delivering superior signal fidelity in electrically noisy environments. The probe achieves a 3.3 ns rise time (10-90%) and supports input dynamic ranges from ±1 V to ±40 V through interchangeable attenuating tips. With a common-mode voltage rating of 35 kV and gain accuracy of ±2.5% typical (±4% guaranteed), the HVFO108 is built for power electronics applications, automotive testing, and characterization of Silicon and Silicon Carbide devices.
Technical Specifications
Electrical Performance
• Bandwidth: 150 MHz (typical, with tip attached)
• Rise Time (10-90%): 3.3 ns
• Gain Accuracy: ±2.5% typical, ±4% guaranteed
• DC coupling only
• Noise Density: 570 nV/√Hz
• Common-Mode Voltage Rating: 35 kV
• Maximum Non-Destructive Voltage: 5 times operating voltage rating
Input Dynamic Range & Impedance
The probe offers five attenuation options (purchased separately):
• 1X: ±1 V, 1 MΩ || 34 pF, 7 mVrms noise
• 5X: ±5 V, 5 MΩ || 26 pF, 35 mVrms noise
• 10X: ±10 V, 8 MΩ || 23 pF, 70 mVrms noise
• 20X: ±20 V, 10 MΩ || 22 pF, 140 mVrms noise
• 40X: ±40 V, 10 MΩ || 22 pF, 280 mVrms noise
Common-Mode Rejection
• 140 dB at 100 Hz
• 120 dB up to 1 MHz
• 85 dB up to 10 MHz
– Key Features
• Fiber optic isolation reduces DUT loading and EMI susceptibility
• Interchangeable attenuation tips enable flexible measurement ranges
• ProBus oscilloscope interface with 1 m fiber optic cable included (6 m optional)
• Battery-powered operation: ~6 hours typical life; 2.5 hour recharge via USB charger, 5 hours via oscilloscope USB port
• Operating temperature: +10°C to +40°C; operating altitude to 3000 m
• ESD immunity: 8 kV contact, 10 kV air (IEC61000-4-2, criteria A)
• RF field immunity: 25 V/m, 80 MHz to 2.7 GHz (IEC61000-4-3, criteria A)
– Compatibility & Integration
Direct support for Teledyne LeCroy WaveSurfer 3000z, WaveSurfer 4000HD, HDOxxxx, WaveRunner 9000, WaveRunner 8000HD, MDA 8000HD, WavePro HD, WaveMaster / SDA / DDA 8 Zi-B, and WaveMaster 8000HD oscilloscopes.
