The Keithley 3390 is a 50 MHz arbitrary waveform/function generator with 14‑bit resolution, 256 k‑point memory, and multiple modulation options.
The Keithley 3390 provides a versatile signal‑generation platform with built‑in arbitrary waveform capability (256 k points, 14‑bit resolution) and standard waveforms such as sine, square, triangle, noise and DC. It supports fast 5 ns rise/fall times for clean pulse generation and a range of modulation types (AM, FM, PM, PWM, FSK, sweep, burst).\n\nConnectivity includes USB, LAN, LXI‑C, GPIB and optional external 10 MHz time base for synchronizing multiple instruments. The instrument complies with IEC safety standards and offers a compact rack‑mountable design with a variety of accessories.
| Maximum Frequency | 50 MHz |
|---|---|
| Arbitrary Waveform Memory | 256 k points |
| Resolution | 14‑bit |
| Rise/Fall Time (Pulse) | 5 ns |
| Output Impedance | 50 Ω typical |
| Interface Options | USB, LAN, LXI‑C, GPIB |
| Power Supply | 110–240 VAC, 50 VA max |
The instrument can produce pulses with a rise time of 5 ns.
Up to 256 k points can be stored in the non‑volatile memory.
USB, LAN, LXI‑C, and GPIB interfaces are provided.
The external time base operates at 10 MHz.