Line driver boosts low-level sensor signals

The PRL-444 is an innovative four-channel high-input-impedance 50ohm TTL line driver

Available now from Pulse Research Lab (PRL) the PRL-444 is an innovative four-channel high-input-impedance 50ohm TTL line driver. This compact, self-contained buffer pod drives four TTL/CMOS signals into 50ohm loads. With a 10kohm input impedance, the new, ready-to use PRL-444 can receive signals from devices with low drive current, such as sensors, PC-based digital I/O cards, satellite receivers, optical transceivers, camera triggers, recorders, and laboratory equipment with TTL/CMOS outputs.
Each input has a 10kohm pulled up to 2.5V so it can also be driven by open-collector devices.

The 50ohm back-terminated outputs of the PRL-444 can drive long lines with or without 50ohm terminations.

With 50ohm load terminations, all outputs can drive 30m of 50ohm cables at clock rates greater than 60MHz.

The PRL-444 is ideal for applications where a single-function instrument pod is needed to drive multiple TTL/CMOS outputs into 50ohm loads.

Small enough (1.3 x 2.9 x 2.9in) to fit anywhere on a test bench, it can often replace the need for bulky, expensive pulse generators at a fraction of the cost.

The new four-channel line driver from Pulse Research Lab works extremely well for high speed digital communications, test and measurement, system integration, high/low logic level generation and basic lab use.

The unit includes an AC adapter and BNC or SMA signal connectors for ready-to-use convenience on the bench or in a system.

The extruded aluminium housing is suitable for mounting with the optional brackets, and up to four units can share a single AC adapter using PRL voltage distribution modules.