Raising the B/W Bar to 32 GHz

摘要

Both the bandwidth and sample rate must be very high to have a truly fast scope. Silicon germanium (SiGe) hasrnmade possible the current generation of 15-GHz to 20-GHz bandwidth scopes. It's interesting that some manufacturers have used DSP enhancement to glean a few more gigahertz, and yet another company has developed a bandwidth-doubling technique to achieve greater than 30 GHz. Nevertheless, further advances in SiGe amplifier performance most likely will only be incremental.