Skip to content

The HP 33120A is a 15 MHz function and arbitrary waveform generator that uses direct digital synthesis to create stable, accurate output signals. It produces clean, low-distortion sine waves along with fast rise- and fall-time square waves and linear ramp waveforms down to 10 mHz, and adds arbitrary waveform capability with 12-bit resolution and a 40 MSa/s sample rate.
A function/arbitrary waveform generator provides the controlled stimulus side of a test setup: known signals at known amplitudes, frequencies, and shapes used to exercise a device under test while a response instrument such as an oscilloscope or spectrum analyzer measures the result. The HP 33120A is positioned for benches that need both standard waveform generation and the flexibility to define custom arbitrary signals from a single instrument.
ValueTronics International stocks and supports the HP 33120A from its 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every unit in our inventory is handled, inspected, and prepared in-house — not drop-shipped from an unverified third party — and supported by the same engineering and operations team for the life of the instrument. That single-location accountability is the difference between a verified instrument with documented condition and a marketplace listing with no recourse.
Hewlett-Packard's test and measurement business was spun out as Agilent Technologies in 1999, and Agilent's electronic measurement division became Keysight Technologies in 2014. Instruments originally sold under the HP brand, including the 33120A, trace their corporate lineage through Agilent to today's Keysight.
| Category | Specification | Value |
|---|---|---|
| Waveforms | Standard | Sine, square, triangle, ramp, noise, sin(x)/x, exponential rise, exponential fall, cardiac, dc volts |
| Arbitrary | 8 to 16,000 points; 12 bits (including sign); 40 MSa/s; Four (4) 16,000 waveforms non-volatile memory | |
| Frequency Characteristics | Sine | 100 µHz - 15 MHz |
| Square | 100 µHz - 15 MHz | |
| Triangle | 100 µHz - 100 kHz | |
| Ramp | 100 µHz - 100 kHz | |
| White noise | 10 MHz bandwidth | |
| Resolution | 10 µHz or 10 digits | |
| Accuracy | 10 ppm in 90 days, 20 ppm in 1 year, 18°C - 28°C | |
| Temp. Coeff / Aging | < 2 ppm/°C; < 10 ppm/yr aging | |
| Sinewave Spectral Purity | Harmonic distortion, dc to 20 kHz | -70 dBc |
| Harmonic distortion, 20 kHz to 100 kHz | -60 dBc | |
| Harmonic distortion, 100 kHz to 1 MHz | -45 dBc | |
| Harmonic distortion, 1 MHz to 15 MHz | -35 dBc | |
| Spurious (non-harmonic), DC to 1 MHz | < -65 dBc | |
| Spurious (non-harmonic), 1 MHz to 15 MHz | < -65 dBc + 6 dB/octave | |
| Total harmonic distortion, DC to 20 kHz | < 0.04% | |
| Phase Noise | < -55 dBc in a 30 kHz band | |
| Signal Characteristics | Squarewave Rise/Fall time | < 20 ns |
| Squarewave Overshoot | 4% | |
| Squarewave Asymmetry | 1% + 5 ns | |
| Squarewave Duty cycle | 20% to 80% (to 5 MHz); 40% to 60% (to 15 MHz) | |
| Triangle/Ramp/Arb Rise/Fall time | 40 ns (typical) | |
| Triangle/Ramp/Arb Linearity | < 0.1% of peak output | |
| Triangle/Ramp/Arb Setting Time | < 250 ns to 0.5% of final value | |
| Triangle/Ramp/Arb Jitter | < 25 ns | |
| Output Characteristics | Amplitude (into 50Ω) | 50 mVpp - 10 Vpp (100 mVpp - 20 Vpp into open circuit) |
| Accuracy (at 1 kHz) | ± 1% of specified output | |
| Flatness < 100 kHz | ± 1% (0.1 dB) | |
| Flatness 100 kHz to 1 MHz | ± 1.5% (0.15 dB) | |
| Flatness 1 MHz to 15 MHz | ± 2% (0.2 dB) Ampl ≥ 3Vrms; ± 3.5% (0.3 dB) Ampl < 3Vrms | |
| Output Impedance | 50Ω (fixed) | |
| Offset (into 50Ω) | + 5 Vpk ac + dc (Offset ≤ 2x pk-pk amplitude) | |
| Offset Accuracy / Resolution | ± 2% of setting + 2 mV; 3 digits amplitude and offset | |
| Units / Isolation | Vpp, Vrms, dBm; 42 Vpk maximum to earth | |
| Protection | Short circuit protected; ± 15 Vpk overdrive < 1 minute | |
| AM Modulation | Carrier -3dB Freq. | 10 MHz (typical) |
| Modulation / Frequency | Any internal waveform including Arb; 10 mHz - 20 kHz | |
| Depth | 0% - 120% | |
| Source | Internal/External | |
| FM Modulation | Modulation / Frequency | Any internal waveform including Arb; 10 mHz - 10 kHz |
| Deviation | 10 mHz - 15 MHz | |
| Source | Internal only | |
| FSK | Internal rate | 10 mHz - 50 kHz |
| Frequency Range | 10 mHz - 15 MHz | |
| Source | Internal/External (1 MHz max.) | |
| Burst | Carrier Freq. | 5 MHz max. |
| Count | 1 to 50,000 cycles or infinite | |
| Start Phase | -360° to +360° | |
| Internal Rate | 10 mHz - 50 kHz ± 1% | |
| Gate Source | Internal/External Gate | |
| Trigger | Single, External or Internal Rate | |
| Sweep | Type | Linear or Logarithmic |
| Direction | Up or Down | |
| Start F/Stop F | 10 mHz - 15 MHz | |
| Speed | 1 ms to 500 s ± 0.1% | |
| Trigger | Single, External, or Internal | |
| Rear Panel Inputs | Ext. AM Modulation | ± 5 Vpk = 100% modulation; 5kΩ input resistance |
| External Trigger / FSK / Burst Gate | TTL low true | |
| General | Power Supply | 110V/120V/220V/240V ± 10% |
| Power Line Frequency | 45 Hz to 66 Hz and 360 Hz to 440 Hz | |
| Power Consumption | 50 VA peak (28 W average) | |
| Operating Environment | 0°C to 55°C | |
| Storage Environment | -40°C to 70°C | |
| State Storage Memory | Power Off state automatically saved, 3 User Configurable Stored States | |
| Interface | IEEE-488 and RS-232 standard | |
| Language | SCPI - 1993, IEEE-488.2 | |
| Dimensions Bench top (W x H x D) | 254.4 mm x 103.6 mm x 374 mm | |
| Dimensions Rack mount (W x H x D) | 212.6 mm x 88.5 mm x 348.3 mm | |
| Weight | 4 kg (8.8 lbs) | |
| Safety / EMC | UL-1244, CSA 1010, EN61010; MIL-461C, EN55011, EN50082-1 | |
| Vibration and Shock / Acoustic Noise / Warm-up / Warranty | MIL-T-28800 Type III Class 5; 30 dBa; 1 hour warm-up; 3 years standard warranty | |
| Option 001 Phaselock/TCXO Timebase | Setability | < 0.01 ppm |
| Stability | ± 1 ppm 0° - 50° | |
| Aging | < 2 ppm in first 30 days (continuous operation); 0.1 ppm/month (after first 30 days) | |
| External Reference Input | Lock Range 10 MHz ± 50 Hz; Level -10 dBm to +15 dBm (+25 dBm or 10 Vpp max input); Impedance 50Ω ± 2%, 42 Vpk isolation to earth; Lock Time < 2 seconds | |
| Internal Reference Output | Frequency 10 MHz; Level > 1 Vpp into 50Ω | |
| Phase Offset | Range +360° to -360°; Resolution 0.001°; Accuracy 25 ns | |
| Trigger Output | Level 5V zero-going pulse; Pulse Width > 2 µs typical; Fanout capable of driving up to three 33120As | |
| Notes | Option 001 also enables phase change commands via front panel or computer for phase calibration and adjustment. |
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
HP
Condition
Used
Manufacturer
Agilent
Frequency
15 MHz
1
Phase Lock/TCXO Timebase
STANDARD
Standard 10 MHZ timebase
Request A Quote