Introducing the Micsig SigOFIT™ Probe, designed with exclusive optical isolation technology for unparalleled signal accuracy. With up to 100MHz bandwidth and a common-mode rejection ratio (CMRR) of 180dB at DC, this probe ensures precise testing of differential signals from ±0.01V to ±6250V. It’s the ideal tool for high-voltage, high-bandwidth applications such as GaN and SiC device testing, motor drive design, and power converters.
Perfect for engineers working on high-frequency, high-voltage applications, the SigOFIT probe provides true signal integrity, even in the most demanding conditions.
Design of motor drive, power converter, electronic ballast
Design of GaN, SiC, IGBT Half/Full bridge devices
Design of inverter, UPS and switching power supply
Safety test for high voltage, high bandwidth applications
Power device evaluation
Current shunt measurements
EMI & ESD troubleshooting
Floating measurements
Product Images
Real Optical Isolation Technology
Safe to Test GaN
Best Probe for Third-Gen Semiconductor
Highest Accuracy
Present True Signal
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Real Optical Isolation Technology
Lasers transmit signals + Power over fibre (no batteries needed, the power supply is more pure), realizes continuous test for 365 days.
Safe to Test GaN
The test leads of SigOFIT probe are short and with coaxial cable transmission, the input capacitance is as low as 1pF minimum, very safe to test GaN.
Best Probe for Third-Gen Semiconductor
SiC & GaN device can switch high voltages in a few nanoseconds, the signal may have high-energy high-frequency harmonics.
Even at the highest bandwidth, the SigOFIT probe still have nearly 100dB CMRR, perfectly suppressed the oscillation caused by high-frequency common-mode noise, no redundant components. It's the best choice for 3rd-gen semiconductor test & measurement.
Highest Accuracy
As the ultimate referee of signal fidelity, SigOFIT optical-fibre isolated probe delivers highest test accuracy. It has excellent amplitude-frequency characteristics, DC gain accuracy ≤1%, while noise ≤ 0.45mVrms. Zero drift<0.1% (works 5 mins later), gain drift also <1%.
Present True Signal
SigOFIT probe has highest common mode rejection ratio, or CMRR, up to 122dB at 200MHz, over 100dB at 1GHz. It's the ultimate referee of signal fidelity measured by other voltage probes.
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