Electric test probe MOIP1000P

high-frequencyinterfacecoaxial

Product overview
The MOIP1000P SigOFIT Gen 3 Optical Isolated Probe by Micsig is a high-performance fiber-optic probe engineered for ultra-fast differential and floating voltage measurements in power semiconductor and converter testing. It delivers 1 GHz bandwidth, ≤450 ps rise time, an ultra-low 0.3 mVrms noise floor, 1% DC gain accuracy, 0.1% zero drift and an 85 kVpk common mode voltage rating for extensive galvanic isolation in high-voltage environments.

Key attributes

• 1 GHz bandwidth with up to 450 ps maximum rise time to capture fast switching transients.
• High CMRR: 180 dB at DC and 108 dB at 1 GHz to suppress common-mode noise at high switching frequencies.
• 85 kVpk common mode voltage rating for full galvanic isolation and safe high-voltage testing.
• Ultra-low noise: 0.3 mVrms noise floor, 1% DC gain accuracy, 0.1% zero drift.
• Interchangeable attenuators supporting 0.01 V to 20 kV differential signals and selectable 0 dB / 20 dB gain switching.
• Minimal input capacitance (1 pF minimum) with short coaxial test leads, optimized for GaN, SiC and IGBT testing without circuit loading concerns.
• Real-time optical power compensation and automatic calibration for continuous high-fidelity waveform output and ready-to-measure performance at power-up.
• 2 m fiber cable, DC 12 V power supply, universal BNC interface.

Applications

• Motor drive design and testing
• Power converter and switching power supply testing
• Inverter design and UPS testing
• Power device evaluation (GaN/SiC/IGBT)
• Current shunt measurement
• EMI and ESD troubleshooting

Technical specifications

• Bandwidth: 1 GHz
• CMRR: 180 dB (DC), 108 dB (1 GHz)
• Interface: BNC
• Noise (full bandwidth): < 0.3 mVrms
• Power supply: DC 12 V
• Rise time: ≤450 ps
• Input capacitance: 1 pF (minimum)
• Common mode voltage rating: 85 kVpk
• Measurement range: 0.01 V to 20 kV differential (via interchangeable attenuators)
• Gain switching: 0 dB / 20 dB
• Fiber cable length: 2 m