Equipping the High Definition Oscilloscope as a mixed-signal instrument combines its 12-bit analog channels with the flexibility of 16 digital inputs. These digital channels sport a 1.25 GS/s sampling rate and 25 Mpts/ch standard product (50 Mpts/ch Memory with option –L) of memory. The mixed-signal option is available on all HDO models. It brings a powerful set of digital debugging tools, including analog and digital cross pattern triggering, digital pattern search and find, digital timing measurements, and activity indicators.