Optical isolation probe with wide bandwidth, high voltage, and high CMRR
FF-1500 is effective for measuring the actual operating signal of device ON/OFF switching in power conversion and power supply circuits, including inverters with GaN and SiC for high-speed operation. It is ideal for high-side gate signal measurements and current measurements from the voltage at both ends of a shunt resistor, where high-voltage common-mode noise can affect the measurement.
FF-1500 probe head
- ＞1.5GHz bandwidth
- ＞180dB CMRR
- ±60kV common mode voltage
- Supports various differential input voltages by selecting probe tip cables
- Universal BNC connection - use with any oscilloscope
Product Overview
Probe head and Interface box
FF-1500 consists of a probe head for measuring signals and a Interface box, with complete isolation between them achieved by a optic fiber cable. The probe head consists of a wideband input amplifier and an EO converter, which are powered by an 18650 battery (take-out rechargeable, sold separately). The Interface box on the signal output side has a BNC connector to accommodate any oscilloscope with a 50Ω input. A probe control unit (PS-02, etc.) is separately required to control the Interface box.
Probe Tip Cable
Probe tip cables with various attenuation ratios can be selected according to the differential voltage to be measured. These tip cables is connected to Probe head with SMA connecter. The tip of the probe tip cable is compatible with a low Ls,Cp MMCX connector (P) for high quality measurement in a wide bandwidth. Connectivity accessories are available as well as connections to MMCX(J)-compliant test points on the evaluation board.
Electrical Specifications
| SMA Input | FF-MMCX-1V | FF-MMCX-10V | FF-MMCX-25V | FF-MMCX-50V | ||
|---|---|---|---|---|---|---|
| Bandwidth | ＞1.5GHz | ＞1.3GHz | ||||
| Rise time | ＜280ps | |||||
| Input Attenuation | 1× | 10× | 25× | 50× | ||
| Input impedance | 200kΩ // 4pF | 50Ω | 2MΩ // 3.4pF | 4.9MΩ // 2.1pF | 10MΩ // 2pF | |
| Common Mode Voltage | ±60kV(DC+ACpeak) | |||||
| Maximum Differential Input Voltage | ±1V | ±10V | ±25V | ±50V | ||
| Maximum non-destructive differential input voltage | 5V | 50V | 100V | |||
| Degree of pollution | 2 | |||||
| Common mode rejection ratio (CMRR) |
DC | ＞180dB | ||||
| 1MHz | 165dB | 145dB | 142dB | 135dB | ||
| 100MHz | 110dB | 95dB | 85dB | 78dB | 75dB | |
| 200MHz | 100dB | 85dB | 82dB | 75dB | 70dB | |
| 500MHz | 90dB | 80dB | 76dB | 70dB | ||
| 1GHz | 90dB | 65dB | 58dB | 50dB | ||
| DC Accuracy | ＜2% ±DC offset voltage | |||||
| Noise | SMA input (1X)：＜2mVrms | |||||
| DC offset voltage | SMA input (1X)：＜1.5mV (after auto-zero) | |||||
| Propagation delay | 2m fiber cable：15ns Probe specific value: printed on the label on the interface box and on the chip cable. Approx. 500 ps |
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| Battery life | ＞30h＠22℃ to 25℃, ＞20h＠0℃, ＞4h＠50℃, Depends on probe head operating temperature (continuous operation) |
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| Output termination and coupling | DC50Ω | |||||
| Battery type | 18650 Li-ion with protection circuit, rechargeable, 3.7 V certified (sold separately) | |||||
| Laser Certification | Laser Class 1 IEC/EN 60825-1:2014, US 21CFR Part 1010, US 21CFR Part 1040 | |||||
Environmental Specifications
| Specifications | |||
|---|---|---|---|
| Temperature range | Operating | Probe head | 0℃ to +50℃ |
| Interface box | 0℃ to +40℃ | ||
| Tip Cables & Adapters | -40℃ to +85℃ | ||
| Non-operating | Probe head & Interface box |
-20℃ to +71℃ | |
| Tip Cables & Adapters | -40℃ to +85℃ | ||
| Maximum relative humidity | Operating | Probe head | 5% to 85%RH (relative humidity) at up to +40°C, 5% to 45%RH above +40°C up to +50°C, non-condensing |
| Interface box | 5% to 85% RH (relative humidity) at up to +40°C, non-condensing |
Non-operating | Probe head & Interface box |
5% to 85%RH (relative humidity) at up to +40°C, 5% to 45%RH above +40°C up to +71°C, non-condensing |
| Tip Cables & Adapters | 5% to 85% RH (relative humidity) at up to +85°C, non-condensing |
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| Maximum altitude | Operating | 3,000m | |
| Non-operating | 15,000m | ||
Order Information
Select base probe Step2
Select probe tip cable Step3
Select connectivity accessories Step4
Select positioning system Step5
Select probe control unit
Step1：Select base probe
| Model | Specifications |
|---|---|
| FF-1500-INT | Optical isolated probe, 1.5GHz, ＞180dB, 2m fiber cable
(2-footer, Probe control unit cable (0.5m) and color ring included.) An 18650 battery for Probe head is sold separately. |
Step2：Select probe tip cable
| Model | Specifications |
|---|---|
| FF-MMCX-1V | Probe tip cable, MMCX, ±1V, ＞1.5GHz, 1x attenuation, 50 Ω terminated for shunt measurements |
| FF-MMCX-10V | Probe tip cable, MMCX, ±10V, ＞1.3GHz, 10x attenuation |
| FF-MMCX-25V | Probe tip cable, MMCX, ±25V, ＞1.3GHz, 25x attenuation |
| FF-MMCX-50V | Probe tip cable, MMCX, ±50V, ＞1.3GHz, 50x attenuation |
Step3：Select connectivity accessories
| Model | Specifications | Figure |
|---|---|---|
| FF-SQ-MMCX5 | 5x MMCX to 2x 0.025" (0.635mm) socket, -40°C to +125°C |  |
| FF-HTSPAD-MMCX3 | 3x MMCX solder-in cable adapter HT, 50Ω RF micro coax to flex solder-in pad, -40°C to +155°C (green=0Ω, yellow=36Ω, red=75Ω) |
 |
| FF-HTS-MMCX2 | 2x MMCX solder-in cable adapter HT, MMCX socket with 50Ω RF micro coax cable and open ends, -40°C to +155°C |
 |
| FF-UFL-MMCX2 | 2x MMCX cable adapter, MMCX socket with 50Ω RF micro coax cable to UF. L plug, -40°C to +125°C |
 |
| FF-2XR-MMCX | MMCX to 2x XR mini-hook |  |
| 972416100 | 2-pole test clip SMD for use with FF-SQ-MMCX5 |  |
| P25-2 | Pico HookTM red use with FF-SQ-MMCX5 |  |
| P25-0 | Pico HookTM black use with FF-SQ-MMCX5 |  |
| D010031 | 50Ω BNC feed-through for 1MΩ input oscilloscopes |  |
Step4：Select positioning system
| Model | Specifications | Figure |
|---|---|---|
| FF-2FOOTER | Probe positioner 2-Footer (Bipod), included in probe's scope of delivery |  |
| FF-3DPOS200 | 3D positioner with steel base, 200mm span width and FF-1500 probe holder, max 10kV |
 |
| FF-HAL10kV-3 | FF-1500 Probe Holder, max 10kV, for use PMK's 3D probe positioning system and SKID probes and PCB board holder systems, no stand-alone use |
 |
Step5：Select probe control unit
*FF-1500 requires the PS-02, PS-03 or AP-01.
| Model | Specifications |
|---|---|
| 889-09V-PS2 | PS-02 (2 channels, with USB interface for remote control) |
| 889-09V-PS2-L | PS-02-L (2 channels, with LAN and USB interface for remote control) |
| 889-09V-PS3 | PS-03 (4 channels, with USB interface for remote control) |
| 889-09V-PS3-L | PS-03-L (4 channels, with LAN and USB interface for remote control) |
| 889-09V-AP01 | AP-01 (battery pack, 1 channel, no remote control) |
| 890-520-900 | Probe control unit cable (0.5 m), included in probe's scope of delivery |
| 890-520-915 | Probe control unit cable (1.5 m) |
