Agilent Technologies introduced a pulse function arbitrary noise generator, which provides desirable signal quality combined with versatile waveforms. It is appropriate for general purpose bench tests or advanced serial data stress tests. The Agilent 81150A is the stimulus for use in conjunction with Agilent's 5/6/80000 Infiniium real-time oscilloscope or DCA-J sampling oscilloscope for serial data testing. Its integration into one instrument minimizes cabling, space and test time. Calibrated and deterministic noise for repeatable stress tests, and random noise generation provide all-in-one capability. Various stress tests can be achieved by simply adjusting the crest factor, an indicator of signal quality using peak-to-peak and root mean square voltages. Features of the Agilent 81150A include accurate signals test the device, not the source, with intrinsic jitter of 8 ps rms at any frequency; 13 standard functions, modulation capabilities up to 10 MHz and more than 80 measurement types; integration into one instrument, which minimizes cabling, space and test time; and differential output and high-voltage amplifier for state-of-the-art devices.