The Picotest J2160A Probe Adapter provides a low noise, compact solution when using the E5061B T / R ports in a 2-port shunt thru measurement. The T / R ports are desirable for low frequency 2-port measurements, since these ports are semi-floating, allowing low impedance measurements without the use of a coaxial common mode transformer such as the J2102A. The floating ports allow milliohm measurements even at very low frequency and up to the 30MHz range of the T / R ports.
The current solution uses a resistive 6dB port splitter combined with coaxial cables to support this measurement. The J2160A is a slim profile adapter, converting the three E5061B BNC ports to two BNC ports for the 2-port measurement. The 6 dB resistive port splitter is included internal to the adapter so no external splitter or cables are required. The short connections are neater, consume less bench space, and can result in a lower noise measurement.
The adapter can also be combined with ultra-wide bandwidth DC blockers, such as the Picotest P2130A. This allows you to make 2-port measurements of sensitive devices without the 50 ohm DC port loading, which could overload the device being measured and / or severely distort the measurement results.
The J2160A adapter also supports the extended 2-port shunt thru measurement, allowing higher impedance 2-port measurements, such as opamps and voltage references by adding a series resistor to each port.
Key features and functions:
- Low noise, compact adapter
- Internal 6dB port splitter
- Supports 2-port shunt-thru test
- Ultra-low impedance measurements
- Two semi-floating ports
- Works with DC blockers
- Low power opamp and voltage reference measurements
- Consumes less bench space than other solutions
- Neater connections consume less bench space
