The Tektronix AFG320 is a 2-channel Arbitrary Function Generator offering versatile waveform generation, sweeping, modulation, and burst capabilities. Supporting standard waveforms up to 16 MHz alongside user-definable arbitrary waveforms at 12-bit vertical resolution, it is designed for benchtop testing, circuit design, and educational lab applications.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488.2), RS-232-C |
| Display | Backlit LCD, 40-character, 2-line |
| Warm-up Time | 20 minutes |
| User Setup Storage | 4 instrument configurations |
| Cooling | Convection |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 to 250 V AC, 48 to 63 Hz, 45 W max |
| Operating Temperature | 0 to 50 |
| Dimensions (W×H×D) | 310 x 99 x 395 |
| Weight | 4.5 |
Channel Characteristics
| Parameter | Value |
|---|---|
| Number of Channels | 2 |
| Operating Modes | Continuous, Sweep, Burst, Modulation |
| Channel-to-Channel Phase Control | -360° to +360° |
| Channel-to-Channel Phase Resolution | 1° |
| Channel-to-Channel Coupling | Independent, Track |
Waveform Generation
| Parameter | Value |
|---|---|
| Standard Waveforms | Sine, Square, Triangle, Ramp, Noise |
| Arbitrary Waveform Types | USR1 (Sin(x)/x), USR2 (Double Exponential Pulse), USR3 (Damped Sine Wave), USR4 (NRZ Random Signal), User-Defined |
| Sampling Rate | 16 MS/s |
| Vertical Resolution | 12 bits |
| Minimum Arbitrary Waveform Length | 10 points |
| Maximum Arbitrary Waveform Length | 16,384 points |
| Non-Volatile Memory Capacity | Four 16k-point waveforms |
Frequency Specifications
| Parameter | Value |
|---|---|
| Sine Frequency Range | 10 mHz to 16 MHz |
| Square Frequency Range | 10 mHz to 16 MHz |
| Ramp/Triangle Frequency Range | 10 mHz to 100 kHz |
| Noise Bandwidth | 1.6 MHz |
| Arbitrary Waveform Frequency Range | 10 mHz to 1.6 MHz |
| Frequency Resolution | 10 mHz or 4 digits |
| Frequency Accuracy | ±50 ppm (±0.005%) |
Sine Wave Distortion and Purity
| Parameter | Value |
|---|---|
| Harmonic Distortion (< 20 kHz) | ≤ -65 dBc |
| Harmonic Distortion (20 kHz to 100 kHz) | ≤ -60 dBc |
| Harmonic Distortion (100 kHz to 1 MHz) | ≤ -45 dBc |
| Harmonic Distortion (1 MHz to 16 MHz) | ≤ -35 dBc |
| Spurious Noise (Non-Harmonic, < 1 MHz) | ≤ -65 dBc |
| Spurious Noise (Non-Harmonic, 1 MHz to 16 MHz) | ≤ -55 dBc |
Pulse & Square Wave Characteristics
| Parameter | Value |
|---|---|
| Rise/Fall Time | ≤ 20 ns |
| Overshoot | ≤ 5% (at maximum output) |
| Duty Cycle Range (≤ 100 kHz) | 1% to 99% |
Amplitude and Output Characteristics
| Parameter | Value |
|---|---|
| Amplitude Range (into 50 Ω) | 50 mVp-p to 10 Vp-p |
| Amplitude Range (into Open Circuit) | 100 mVp-p to 20 Vp-p |
| Amplitude Accuracy (at 1 kHz, 5 Vp-p) | ±(1% of setting + 5 mV) |
| Amplitude Resolution | 3 digits (1 mV or 0.1 dB) |
| Amplitude Units | Vp-p, Vrms, dBm |
| DC Offset Range (into 50 Ω) | ±5 V |
| DC Offset Range (into Open Circuit) | ±10 V |
| Output Impedance | 50 Ω |
| Main Output Connector Type | BNC |
Modulation, Sweep, and Burst
| Parameter | Value |
|---|---|
| Modulation Types | AM, FM, FSK, PSK |
| Internal Modulation Sources | Sine, Square, Triangle, Ramp, Noise |
| AM Modulation Depth | 0% to 100% |
| FM Deviation Range | 10 mHz to 8 MHz |
| FSK/PSK Keying Rates | 10 mHz to 50 kHz |
| Sweep Type | Linear, Logarithmic |
| Sweep Time Range | 1 ms to 100 s |
| Burst Count Range | 1 to 60,000 cycles, or Infinite |
| Trigger Sources | Internal, External, Manual |
Clock, Trigger, and Synchronization
| Parameter | Value |
|---|---|
| Internal Timebase Reference Accuracy | ±50 ppm |
| External Reference Input Frequency Range | 10 MHz |
| External Reference Output Frequency | 10 MHz |
| Trigger Input Voltage Level | TTL compatible |
| Trigger Input Minimum Pulse Width | 100 ns |
| Sync Output Impedance | 50 Ω |
Connectivity and Programming
| Parameter | Value |
|---|---|
| RS-232 Interface | 9-pin D-sub, up to 19.2 kbps |
| Programming Command Language | SCPI-compatible |
| PC Software Support | ArbLink |
Physical and Environmental
| Parameter | Value |
|---|---|
| Storage Temperature Range | -20 °C to +60 °C |
| Operating Humidity Range | 20% to 80% R.H. (non-condensing, up to +40 °C) |
| Power Consumption | 60 W maximum |
Amplitude
| Parameter | Value |
|---|---|
| Amplitude Flatness (< 100 kHz) | ±0.1 dB |
| Amplitude Flatness (100 kHz to 1 MHz) | ±0.15 dB |
| Amplitude Flatness (1 MHz to 16 MHz) | ±0.3 dB |
Sine Wave Characteristics
| Parameter | Value |
|---|---|
| Total Harmonic Distortion (THD) | ≤ 0.2% (10 Hz to 20 kHz, 1 Vp-p) |
Square Wave Characteristics
| Parameter | Value |
|---|---|
| Duty Cycle Range (100 kHz to 1 MHz) | 40.0% to 60.0% |
| Duty Cycle Range (1 MHz to 16 MHz) | 50.0% (fixed) |
Environmental
| Parameter | Value |
|---|---|
| Operating Altitude | Up to 3,000 m (10,000 ft) |
Auxiliary Inputs/Outputs
| Parameter | Value |
|---|---|
| External Reference Input Impedance | 1 kΩ (AC coupled) |
| External Reference Output Impedance | 50 Ω (AC coupled) |
| External Modulation Input Impedance | 10 kΩ |
| External Modulation Input Range | ±5 V full scale |
| External Modulation Bandwidth | DC to 10 kHz |
Compliance
| Parameter | Value |
|---|---|
| Safety Certifications | UL3111-1, CAN/CSA-C22.2 No. 1010.1, EN 61010-1 |
| EMC Certifications | EN 55011 Class A, EN 50082-1, FCC Part 15 Subpart B Class A |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Trigger Input Impedance | 10 kΩ |
| Trigger Input Threshold | 1.4 V (TTL level) |
| Output Terminal Grounding | BNC shields connected to chassis ground |
Performance
| Parameter | Value |
|---|---|
| User Waveform Storage | 4 waveforms (up to 16,384 points each) |
| Sweep Spacing | Linear or Logarithmic |
Technology
Arbitrary Waveform Generator
Applications
Electronic Test and Measurement