The Keithley Model 3390 is a high-performance 50 MHz arbitrary waveform and function generator featuring a 14-bit vertical resolution, 256k-point waveform memory, and LXI Class C compliance. Designed to deliver superior signal integrity with fast 5 ns rise and fall times, it provides versatile standard and arbitrary waveform generation along with AM, FM, PM, FSK, and PWM modulation. Ideal for precision testing, it includes standard USB, LAN, and GPIB interfaces.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | USB (Type B), LAN (LXI Class C), GPIB |
| Display | 256 × 64 Graphical LCD |
| Warm-up Time | 1 hour |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 V to 240 V AC (±10%), 50/60 Hz; 100 V to 120 V AC (±10%), 400 Hz; 50 VA max |
| Operating Temperature | 0 to 50 °C |
| Dimensions (W×H×D) | 224 mm × 104 mm × 370 mm |
| Weight | 3.18 kg |
| Rackmount Size | 2U half-rack |
Channel Characteristics
| Parameter | Value |
|---|---|
| Number of Channels | 1 |
| Operating Modes | Continuous, Modulation, Sweep, Burst |
Waveform Generation
| Parameter | Value |
|---|---|
| Standard Waveforms | Sine, Square, Ramp, Triangle, Pulse, Noise, DC |
| Arbitrary Waveform Memory | 256k points |
| Vertical Resolution | 14 bits |
| Sampling Rate | 125 MSa/s |
| Minimum Arbitrary Waveform Length | 8 points |
| Maximum Arbitrary Waveform Length | 256k points |
| Non-Volatile Memory Capacity | 4 waveforms (up to 256k points each) |
Frequency Specifications
| Parameter | Value |
|---|---|
| Sine Frequency Range | 1 µHz to 50 MHz |
| Square Frequency Range | 1 µHz to 25 MHz |
| Pulse Frequency Range | 500 µHz to 25 MHz |
| Ramp/Triangle Frequency Range | 1 µHz to 200 kHz |
| Noise Bandwidth | 20 MHz |
| Arbitrary Waveform Frequency Range | 1 µHz to 10 MHz |
| Frequency Resolution | 1 µHz |
| Frequency Accuracy | ±10 ppm (90 days), ±20 ppm (1 year) |
Sine Wave Distortion and Purity
| Parameter | Value |
|---|---|
| Total Harmonic Distortion (THD) | <0.2% (DC to 20 kHz, 1 Vp-p) |
| Spurious Noise (Non-Harmonic) | <-70 dBc (DC to 1 MHz) |
| Phase Noise | <-115 dBc/Hz (at 10 MHz, 10 kHz offset) |
Pulse & Square Wave Characteristics
| Parameter | Value |
|---|---|
| Rise/Fall Time | < 10 ns |
| Overshoot | <5% |
| Duty Cycle Range | 20% to 80% (up to 25 MHz) |
| Pulse Width Range | 20 ns to 2000 s |
| Pulse Width Resolution | 10 ps or 5 digits |
| Pulse Jitter (RMS) | <100 ps |
Amplitude and Output Characteristics
| Parameter | Value |
|---|---|
| Amplitude Range (into 50 Ω) | 10 mVp-p to 10 Vp-p |
| Amplitude Range (into Open Circuit) | 20 mVp-p to 20 Vp-p |
| Amplitude Accuracy | ±(1% of setting + 1 mVp-p) at 1 kHz |
| Amplitude Units | Vp-p, Vrms, dBm |
| DC Offset Range (into 50 Ω) | ±5 V |
| DC Offset Range (into Open Circuit) | ±10 V |
| DC Offset Accuracy | ±(1% of setting + 5 mV + 0.5% of amplitude) |
| Output Impedance | 50 Ω typical |
| Output Protection | Short-circuit protected |
| Main Output Connector Type | BNC (Front Panel) |
Modulation, Sweep, and Burst
| Parameter | Value |
|---|---|
| Modulation Types | AM, FM, PM, FSK, PWM |
| Internal Modulation Sources | Sine, Square, Ramp, Arbitrary |
| AM Modulation Depth | 0.0% to 120.0% |
| FM Deviation Range | 1 µHz to 25 MHz |
| PM Phase Deviation Range | 0.0° to 360.0° |
| FSK Keying Rate | 2 mHz to 1 MHz |
| PWM Duty Cycle Deviation | 0% to 100% of pulse width |
| Sweep Type | Linear or Logarithmic |
| Sweep Time Range | 1 ms to 500 s |
| Burst Type | Triggered (Counted), Gated |
| Burst Count Range | 1 to 50,000 cycles, or Infinite |
Clock, Trigger, and Synchronization
| Parameter | Value |
|---|---|
| Internal Timebase Reference Accuracy | ±10 ppm |
| External Reference Input Frequency Range | 10 MHz ± 512 Hz |
| External Reference Input Level | 100 mVp-p to 5 Vp-p |
| External Reference Output Frequency | 10 MHz |
| External Reference Output Level | 632 mVp-p (0 dBm) into 50 Ω |
| Trigger Input Voltage Level | TTL-compatible |
| Trigger Input Impedance | 10 kΩ typical |
| Trigger Output Voltage Level | TTL-compatible |
| Trigger Output Pulse Width | >400 ns |
| Sync Output Level | TTL-compatible |
| Sync Output Impedance | 50 Ω nominal |
Connectivity and Programming
| Parameter | Value |
|---|---|
| USB Interface Type | USB 2.0 Device Port (Type B) |
| LAN Interface / LXI Compliance | LXI Class C (10/100 Base-T) |
| GPIB Interface | IEEE-488.2 GPIB Standard |
| Programming Command Language | SCPI-1992, IEEE-488.2 |
| Software Drivers | IVI-COM, LabVIEW |
| External Modulation Input Connector | BNC (Rear Panel) |
| External Modulation Input Level | ±5 V full scale |
| External Modulation Input Impedance | 10 kΩ |
| Waveform Creation Software | KiWAVE (included) |
Physical and Environmental
| Parameter | Value |
|---|---|
| Display Resolution | 256 × 64 pixels |
| Power Supply Frequency | 50/60 Hz, 400 Hz |
| Power Consumption | 50 VA maximum |
| Storage Temperature Range | -30 °C to 70 °C |
| Operating Humidity Range | Max 80% R.H. up to 30 °C, non-condensing |
Compliance and Standards
| Parameter | Value |
|---|---|
| Safety Certificates | Conforms to European Union Low Voltage Directive, IEC 61010-1 |
| EMC Compliance Standards | Conforms to European Union EMC Directive, EN 61326-1 |
| RoHS Directive Compliance | Compliant |
| Calibration Interval | 1 year |
Performance
| Parameter | Value |
|---|---|
| Amplitude Flatness (<10 MHz) | ±0.1 dB (relative to 1 kHz, 1 Vpp) |
| Amplitude Flatness (10 MHz to 50 MHz) | ±0.15 dB (relative to 1 kHz, 1 Vpp) |
| Ramp Linearity | < 0.1% of peak output (typical, at 1 kHz, 1 Vpp, 100% symmetry) |
| Ramp Symmetry Range | 0.0% to 100.0% |
| Amplitude Resolution | 0.1 mV or 4 digits |
| DC Offset Resolution | 1 mV or 4 digits |
Timebase & Reference
| Parameter | Value |
|---|---|
| External Reference Input Impedance | 1 kΩ (typical, AC coupled) |
| External Reference Output Impedance | 50 Ω (typical, AC coupled) |
Sweep & Burst
| Parameter | Value |
|---|---|
| Sweep Direction | Up / Down |
Trigger
| Parameter | Value |
|---|---|
| Trigger Input Slope | Rising or Falling (selectable) |
| Trigger Input Latency | < 100 ns (typical) |
Outputs
| Parameter | Value |
|---|---|
| Output Isolation | 42 Vpk maximum to earth |
Environmental
| Parameter | Value |
|---|---|
| Operating Altitude | up to 3,000 m |
| Storage Altitude | up to 15,240 m |
Spectral Purity
| Parameter | Value |
|---|---|
| Harmonic Distortion (DC to 1 MHz) | <-70 dBc |
| Harmonic Distortion (1 MHz to 5 MHz) | <-65 dBc |
| Harmonic Distortion (5 MHz to 50 MHz) | <-40 dBc |
| Phase Noise (10 MHz carrier, 10 kHz offset) | <-115 dBc/Hz (typical) |
Phase
| Parameter | Value |
|---|---|
| Phase Offset Range | -360.00° to +360.00° |
| Phase Offset Resolution | 0.001° |
Modulation
| Parameter | Value |
|---|---|
| Internal Modulation Frequency Range | 2 mHz to 20 kHz |
| FSK Keying Rate Range (Internal) | 2 mHz to 100 kHz |
Burst
| Parameter | Value |
|---|---|
| Burst Start Phase Range | -360.0° to +360.0° |
| Burst Start Phase Resolution | 0.1° |
Pattern Mode
| Parameter | Value |
|---|---|
| Pattern Length | 2 to 256,000 points |
| Pattern Output Rate | 1 µHz to 50 MHz |
Arbitrary Waveform
| Parameter | Value |
|---|---|
| Non-Volatile Arbitrary Waveform Storage | 4 waveforms |
Trigger Input
| Parameter | Value |
|---|---|
| Trigger Input Minimum Pulse Width | 100 ns |
Technology
Direct Digital Synthesis (DDS)
Applications
Signal generation, educational labs, electronic design, and sensor simulation
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