The HP 1631A/D provides a digitizing oscilloscope and a logic analyzer in one low-cost instrument. It offers analog, timing, state, and system performance analysis capabilities function separately or interactively to serve the needs of digital design and test engineers.
The A and D models differ only in state/timing channel width. The HP 1631A provides up to 35 state channels, eight timing channels, and two analog channels. The HP 1631D provides up to 43 state channels, 16 timing channels, and two analog channels
