Reference
Sample. Use S am ple acquisition mode for the fastest acquisition at any
SEC/DIV setting. Sample mode is the default mode.
Peak Detect. Use P eak Detect acquisition mode to limit the possibility
of aliasing. Also, use Peak Detect for glitch detection. You can see
glitches as narrow as 1 ns.
Peak Detect is only functional for sample rates up to 125 M S/s. For
250 MS/s and faster samp le ra tes, the oscilloscope reverts to Sample
acquisition mode, where the narrowest detect able pulse width is
1/(sample rate).
TDS3000C Series O scilloscope User Manual 65