The Tektronix TDS684C Digital Real-Time Oscilloscope 1 GHz, 4 Ch, 5 GS/s captures your fastest signals with the best fidelity and resolution available. Its 1 GHz bandwidth preserves your waveform’s fast rising edges and accurately shows signal details. With 5 GS/s digitizing rate simultaneously on all four channels and a high-stability timebase, the TDS684C makes your critical timing measurements with the highest resolution and accuracy – even channel-to-channel measurements made in a single acquisition.