SBVA094A February 2025 – July 2025 TPS7A21
Oscilloscopes have the capability to zoom between several orders of magnitude, from 1s/div down to 500ps/div, or even smaller in high-performance oscilloscopes. This makes choosing an appropriate time scale important to effectively visualize the waveforms captured. When a waveform is not in visual focus, there can be difficulty distinguishing data at the rising and falling edges. When a waveform is illegible, the details of the electrical behavior can be lost. Taking a measurement with improper visualization can lead to concerns when debugging a measurement for future development. Figure 3-9 shows a load transient measurement which is displayed on a time scale that is too zoomed out for the measurement to be legible. Figure 3-10 shows a load transient measurement with a corrected timebase to account for distinguishing data on the rising edge. Figure 3-10 is an acceptable image for visualization.
Figure 3-9 Poor Visualization
Figure 3-10 Focus on the Rising
Edge