High-Performance TDR Measurement Solution
The Picotest P2105A is a versatile 50-ohm, 1-port transmission line 'browser' probe engineered for precision time domain reflectometry (TDR) measurements. This multi-function probe features interchangeable snap-on heads that enable engineers to tackle five critical measurement types: TDR impedance testing, power rail ripple analysis, transient load stepping, near-field measurements, and PDN impedance characterisation.
Wiring Quick-Start
| Connection | Cable Type | Instrument Port |
|---|---|---|
| P2105A to Oscilloscope | 1m SMA-Mini SMP PDN Cable | Channel 1 (50Ω input) |
| J2154A TDR Generator | SMA cable | Channel 2 (reference) |
| Ground Connection | Probe tip to DUT ground | PCB ground plane |
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Bandwidth | DC to 15GHz | Pitch and calibration dependent |
| Impedance | 50Ω nominal | Compatible with all 50Ω instruments |
| Input Loading | <1pF | Minimal circuit loading |
| Measurement Range | ~100mΩ to ~100kΩ | Instrument dependent |
Available Probe Head Configurations
Browser Probe Design
The P2105A's 'browser' designation refers to its ability to quickly move from point-to-point across PCBs without requiring permanent test points or SMA connections. The spring-loaded probe tips ensure reliable contact while the slim, ergonomic design provides excellent visibility and access to dense circuit layouts.
Compatibility and Integration
Fully compatible with all 50-ohm test instruments including: