The LeCroy HVD3605 is a high-voltage differential probe engineered for precision measurement of floating differential signals in power electronics, motor drives, and automotive applications. It delivers 100 MHz bandwidth with automatic attenuation scaling (200:1 and 2000:1) via ProBus integration, eliminating external power supplies. The probe accommodates differential voltages up to 7600 V (DC + peak AC) with common-mode rejection reaching 85 dB at DC–60 Hz, and supports maximum input voltages of ±7600 Vpk to earth with 6000 Vrms rating. Gain accuracy of 1% (low-frequency, guaranteed) and noise performance of <65 mVrms (200x attenuation) and <320 mVrms (2000x attenuation, referred to input) enable reliable measurements in noisy industrial environments. Input impedance of 48 MΩ || 2.5 pF between inputs and 24 MΩ || 5.0 pF to ground minimizes loading effects. The probe is rated CAT I per IEC/EN 61010-031/A1:2008 and CAT III 1000 Vrms, with slew rate capability of 1000 V/ns and rise time of 4.3 ns.
Technical Specifications
• Bandwidth: 100 MHz
• Attenuation: 200:1, 2000:1 (automatic scaling)
• Gain Accuracy: 1% (LF, guaranteed)
• Differential Voltage Range: 700 V (low attenuation) / 7000 V (high attenuation), DC + peak AC
• Maximum Measurable Differential Voltage: 7600 V (DC + peak AC)
• Common Mode Voltage Range: ±7600 V (DC + peak AC), 6000 Vrms
• Maximum Safe Input: 8485 V (DC + peak AC), 6000 Vrms
• Input Impedance: 48 MΩ || 2.5 pF (between inputs); 24 MΩ || 5.0 pF (input to ground)
• Rise Time (10–90%): 4.3 ns
• Slew Rate: 1000 V/ns
• Noise: <65 mVrms (200x), <320 mVrms (2000x, referred to input)
• CMRR (typical): 85 dB (DC–60 Hz), 70 dB (10 kHz), 64 dB (1 MHz, 200x), 50 dB (1 MHz, 2000x)
• Output Termination: 1 MΩ
– Key Features
• AC or DC input coupling
• ProBus interface with integrated power and communication
• Automatic V/div attenuation scaling
• CAT I safety rating; CAT III 1000 Vrms
• Operating temperature: 0°C to 50°C
– Typical Applications
• Automotive power electronics and motor drive development
• High-voltage floating differential measurements
• General power converter and inverter characterization
– Compatibility & Integration
The probe integrates directly with LeCroy oscilloscopes via the ProBus interface, enabling automatic gain scaling without manual setup.
