Request InfoPulse Research LabPulse Research Lab (PRL) has launched the PRL-444, a four-channel TTL line driver. The compact, self-contained buffer pod drives four TTL/CMOS signals into 50-ohm loads. With a 10k (omega) input impedance, it can receive signals from devices with low drive current, such as sensors, PC-based digital I/O cards, satellite receivers and camera triggers. Each input has a 10k (omega) impedance pulled up to 2.5 V so that it also can be driven by open-collector devices. With 50-ohm load terminations, all outputs can drive 100 ft of 50-ohm cables at clock rates of more than 60 MHz.See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 3/7/2023Water SensorThe Apollo Water Sensor platform from Intelligent Optical Systems Inc. is an optode-based sensing platform designed for sensitive measurements in challenging environments. 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