To insure high-fidelity waveform output, the most critical specifications to consider are response speed, typically defined by frequency bandwidth, and slew rate. Selecting a model with sufficient margin relative to your target signal is essential for stability and accuracy.
General Selection Guidelines:
- Sine Waves: Select a model with a frequency bandwidth 3 to 5 times higher than the operating frequency.
- Square Waves and Pulse Signals: A bandwidth of at least 10 times the fundamental frequency is recommended. Since square waves contain numerous high-frequency harmonics, a wider bandwidth and high slew rate are necessary to preserve sharp edges and signal integrity.