The Rohde & Schwarz RT-ZPR40 is an active power rail probe designed for precision power integrity measurements across DC to 4.0 GHz bandwidth. It delivers high-fidelity capture of fast transient events and high-frequency noise on power rails while maintaining very low added noise—only 10% above oscilloscope baseline. The 1:1 attenuation ratio and 50 kΩ input impedance minimize circuit loading while accommodating DC offset voltages up to ±60 V. Signal handling capacity reaches ±0.85 V with offset compensation to ±60 V, supporting non-destructive inputs to ±60 V DC or ±5 V AC peak.
Technical Specifications
• Bandwidth: DC to 4.0 GHz
• Attenuation Factor: 1:1
• Input Impedance: 50 kΩ
• Maximum Signal Voltage: ±0.85 V
• Offset Compensation Range: ±60 V
• Maximum Non-Destructive Input: ±60 V DC or ±5 V AC (peak)
• AC Coupling Low-Frequency Cutoff: 10 Hz
• Added Noise: 10% above oscilloscope noise floor
• ProbeMeter Dynamic Range: ±60 V
• ProbeMeter Accuracy: < 0.1 %
– Key Features
• Integrated ProbeMeter displays DC voltage, ripple, noise, and settling transients directly on the oscilloscope display
• High impedance (50 kΩ) minimizes loading effects on measured circuits
• AC coupling capability with 10 Hz low-frequency cutoff for ripple and transient analysis
• Comprehensive accessory kit: ground leads with alligator clips, ground springs, IC caps, spring tips, micro SMD clip, flexible ground lead, and multiple probe tips for diverse board topologies
– Typical Applications
• Power rail ripple and noise characterization
• Transient response measurement during load switching
• Power supply voltage tolerance verification
• High-frequency noise detection in presence of large DC offsets
– Compatibility & Integration
Connects via Rohde & Schwarz probe interface to compatible oscilloscopes including TM3000, RTA4000, MXO, RTE, RTO6, and RTP Series models. Operates from 0 to 40 °C. Includes 1 m SMA cable for accessory connections.
