Tektronix launches the TPR1000 and TPR4000 power rail probes that combine with the 12-bit 5 or 6 Series MSO mixed signal oscilloscopes. The probes are supported by a complete set of connectors for small, difficult-to-access test points helping to reduce connection frustration Power rail measurement challenges include:
- Noise from the oscilloscope and probe is indistinguishable from the noise and ripple of your DC supply
- Oscilloscopes often don’t have enough offset to shift DC rails onto the display
- Low-impedance probes can load down a power rail – changing the way it performs. But high-impedance, high-attenuation probes tend to be noisy. The perfect probe would present high resistance to DC but 50 ohms for AC
- Probes may not have sufficient bandwidth to see GHz noise that can affect high-speed drivers
Addressing these issues, the TPR1000 and TPR4000 power rail probes address measure the noise well below a millivolt. The probes offer up to 60V offset, 1V dynamic range, and up to 4 GHz of bandwidth.
Connection options include:
- Various solder-in tips offer reliable access to hard to reach, sensitive signals with optimal signal resolution at up to 4GHz
- For connecting to test points, SMA, MMCX, U.FL and square pins are included
- An optional handheld browser makes quick measurements up to 1 GHz
Available in late March, the 1 GHz TPR1000 and 4 GHz TPR4000 single-ended power rail probes with the TPR4KIT accessory kit are priced at $4,000 and $6,000, respectively. For more details, download a datasheet.