Oscilloscope measurement resolution depends on more than whether the analog-to-digital converter is an 8-bit, 10-bit, or 12-bit device. The whole system, from end to end, must be optimized to mitigate the effects of noise, as well as improve digital resolution. This application note describes probing considerations, HiRes sampling mode, and other signal-processing techniques for making high resolution measurements with your Tektronix oscilloscope.