Design digital input modules with parallel interface using industrial digital inputs

Design digital input modules with parallel interface using industrial digital inputs

Industrial digital input chips provide serialized data by default. However, in systems that require real time, low latency, or higher speed, it may be preferable to provide level-translated, real-time logic signals for industrial digital input channel. So, some industrial digital inputs sample and serialize the state of eight 24-V current sinking inputs under SPI or…

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Oscilloscope input coupling: Which input termination should be used?

Oscilloscope input coupling: Which input termination should be used?

Getting signals into an oscilloscope or digitizer without distorting them is a significant concern for instrument designers and users. The critical first point in an instrument is the input port. Oscilloscopes offer 50-Ω and 1-MΩ input terminations for both channels and trigger inputs. When should each be used? A typical oscilloscope offers input ports terminated…

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