PMK Firefly® Optically Isolated Voltage Probe
The PMK FireFly® high voltage optically isolated probe offers industry leading performance that combines the ability to accurately resolve high bandwidth, small differential signals in the presence of large common mode voltages with its ultra-high common mode rejection performance across its entire bandwidth. With >1.5GHz bandwidth, wide differential input range, unmatched common mode rejection ratio CMRR up to >180dB (1 billion to 1 rejection), and a 60kV common mode, FireFly® is the ideal measurement solution for both GaN and SiC device characterization and system level design development.
- Ideal measurement solution for both GaN and SiC high-side VGS
- >1.5MHz Bandwidth, <300pS risetime
- ±60kV common mode voltage
- >180dB CMRR from DC to 500kHz, 80dB at 1GHz
- Quiet operation, no fan
- Universal use with BNC connector
- Wide range of differential input voltage tips
- 2m or 10m cable length
PMK’s optically isolated interface and unique compact angled probe head design are the key attributes that set FireFly® apart from the other solutions in the market, providing very stable and accurate measurements over a wide temperature range and easy access to the measurement points in tight spaces.
The compact angled probe head design allows for shorter tip cables to be used, resulting in higher signal fidelity measurements and reduced stresses placed on the measurement test point. FireFly®’s wide selection of probe tip connections and accessories offer reliable, hands-free, high-fidelity connectivity to the measurement points. Using industry standard MMCX and square pins connections allow FireFly® to easily interface to test boards that have already been designed with these test points.
FireFly® has a universal BNC output connector and is compatible with any oscilloscope with a 50Ω input impedance or 1MΩ input impedance and a 50Ω feed-through termination, allowing FireFly® to be used on any oscilloscope in the lab.
The FireFly® probe head is powered by an easy to change, rechargeable, industry standard 18650 battery that provides continuous operation for up to 30h at room temperature. The interface box is powered by the required PMK power supply. The 2ch PS2 and 4ch PS3 power supplies all have remote control capabilities and therefore a USB interface and optional additional LAN interface. As an alternative for most flexible use, the 1 channel battery pack power supply AP-01 provides >8h of portable and isolated operation but has no software remote control.
A PMK power supply unit is required. These are available with a USB interface and are optionally available with a LAN interface. Remote control of the probe is made possible by the power supply unit.
ISO17025 calibration upon delivery or as re-calibration is possible on request.
Select Base Probe
|
Order number |
Article |
Attenuation |
Bandwidth (-3 dB) |
Input Voltage |
Input Impedance |
Rise time |
|---|---|---|---|---|---|---|
| FF-1500A | FireFly®, SMA Input | 1:1 | >1.5 GHz | ±1 V | 200 kΩ || 5.1 pF | <250 ps |
| FF-1500A-10m | FireFly®, SMA Input | 1:1 | >1.5 GHz | ±1 V | 200 kΩ || 5.1 pF | <250 ps |
Select Probe Tip Cables
|
Order number |
Article |
Attenuation |
Bandwidth (-3 dB) |
Input Voltage |
Input Impedance |
Rise time |
|---|---|---|---|---|---|---|
| FF-MMCX-1V | FireFly®, probe tip cable, MMCX | 1:1 | >1.5 GHz | ±1 V | 50 Ω * | <250 ps |
| FF-MMCX-10V | FireFly®, probe tip cable, MMCX | 10:1 | >1.3 GHz | ±10 V | 2 MΩ || 3.4 pF | <280 ps |
| FF-MMCX-25V | FireFly®, probe tip cable, MMCX | 25:1 | >1.3 GHz | ±25 V | 4,9 MΩ || 2.1 pF | <280 ps |
| FF-MMCX-50V | FireFly®, probe tip cable, MMCX | 50:1 | >1.3 GHz | ±50 V | 10 MΩ || 2 pF | <280 ps |
| FF-MMCX-250V | FireFly®, probe tip cable, MMCX | 250:1 | >1.3 GHz | ±250 V | 20 MΩ || 2.1 pF | <280 ps |
| FF-WSQ-500V | FireFly®, probe tip cable, WSQ | 500:1 | >1 GHz | ±500 V | 40 MΩ || 2.8 pF | <300 ps |
| FF-WSQ-1000V | FireFly®, probe tip cable, WSQ | 1000:1 | >1 GHz | ±1000 V | 40 MΩ || 2.9 pF | <300 ps |
| FF-WSQ-1500V | FireFly®, probe tip cable, WSQ | 1500:1 | >1 GHz | ±1500 V | 40 MΩ || 2.7 pF | <300 ps |
| FF-WSQ-2500V | FireFly®, probe tip cable, WSQ | 2500:1 | >1 GHz | ±2500 V | 40 MΩ || 2.5 pF | <300 ps |
| coming soon: | More connectivity solutions | |||||
| (*) terminated, 50Ω transmission line |
Select Connectivity Accessories
|
Order number |
Article |
|
|---|---|---|
| FF-SQ-MMCX5 | 5x MMCX Y-lead adapter, MMCX socket to 2x 0.025'' (0.635mm) socket, compatible with square pins with 0.100'' (2.54mm) space, -40°C to +125°C | |
| FF-HTSPAD-MMCX3 | 3x MMCX solder-in cable adapter HT, MMCX socket with 50Ω RF micro coax cable to flex solder-in pad, -40°C to +155°C (1x 0Ω, 1x 36Ω, 1x 75Ω) | |
| FF-2XR-MMCX | MMCX Y-Lead, MMCX socket to 2x XR Mini-Hook | |
| 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-HTS-MMCX2 | 2x MMCX solder-in cable adapter HT, MMCX socket with 50Ω RF micro coax cable and open end, -40°C to +155°C | |
| FF-WSQ-4mm-2 | 2x extension lead for FireFly® HV tips (5.08mm pitch) to 2x 4mm safety banana plugs (male), e.g. to use BumbleBee® series accessories | |
| FF-WSQ-SPADE-2 | 2x extension lead for FireFly® HV tips (5.08mm pitch) to spades (Ø4mm opening) | |
| FF-MMCX-SPADE-3 | 3x extension lead for FireFly® MMCX tips to spades (Ø4mm opening) | |
| 972416100 | 2-pole test clip SMD, for use with FF-SQ-MMCX5 | |
| P25-2 | Pico Hook™, red, for use with FF-SQ-MMCX5 | |
| P25-0 | Pico Hook™, black, for use with FF-SQ-MMCX5 | |
| D010031 | 50Ω BNC feedthrough for use with 1MΩ oscilloscope inputs, 0.5W |
PMK FireFly® Series Datasheet
