The mainframes of CX3300 series Device Current Waveform Analyzers capture measured current waveforms by current or differential sensors with up to 200 MHz bandwidth and at a sampling rate of up to 1 GSa/s. The measurement waveforms are captured with 14-bit or 16-bit resolution. To maintain the low noise sensing capabilities of the current and differential sensors, the mainframes are also designed to minimize the noise even under such wide measurement bandwidth.