# HP 33120A 15 MHz Function/Arbitrary Waveform Generator (Pre-Owned) # HP 33120A 15 MHz Function/Arbitrary Waveform Generator (Pre-Owned) ## Key Features At A Glance - 15 MHz sine and square wave output with direct digital synthesis for stable, low-distortion signals - Standard waveforms include sine, square, triangle, ramp, noise, sin(x)/x, exponential rise/fall, cardiac, and DC - 12-bit arbitrary waveform generation at 40 MSa/s with up to 16,000 points stored in nonvolatile memory - Internal AM, FM, FSK, and burst modulation eliminate the need for a separate modulation source - Linear and logarithmic sweep capability with sweep rates selectable from 1 ms to 500 s - HP-IB (IEEE-488) and RS-232 interfaces standard with full SCPI programmability - Optional Phase Lock/TCXO timebase (Opt. 001) for synchronized phase-offset signals and 4 ppm/yr frequency stability - Direct voltage entry in Vp-p, Vrms, or dBm with intuitive front-panel knob adjustment 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. ## Brand Heritage 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. ## Accessories Supplied - Operating manual - Service manual - Quick reference guide - Test data - Power cord ## Product Core & Specifications 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. **Important:** Maximum input on the External AM Modulation rear-panel input: ±5 Vpk corresponds to 100% modulation, with 5 kΩ input resistance. External lock range on the Option 001 reference input is 10 MHz ±50 Hz, with input level –10 dBm to +15 dBm (+25 dBm or 10 Vpp maximum).Recommended pairing: use the HP 34811A BenchLink Arb software (Opt. 106) to create, edit, and download arbitrary waveforms from a Windows PC directly to the HP 33120A — the datasheet calls out this software as the companion tool for custom waveform development. ## About this used unit - Warranty included on every pre-owned unit sold by ValueTronics. - Functional verification performed on every pre-owned unit before shipment. - Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data. - Note that unnecessary accessories may not be included (contact Test Architect to confirm). **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.** ## Details - **Price:** 0.0 USD - **Vendor:** HP - **Type:** Func Gen - **Tags:** Agilent, Agilent Keysight, Arbitrary Waveform, Manufacturers, product_manual_group_1, Product_used, Signal Generators, Updated Item Review ## Variants | Variant | Price | Available | |---------|-------|-----------| | None | 0.00 USD | In stock | | NIST Traceable | 0.00 USD | In stock | | NIST Traceable with Full Data | 0.00 USD | In stock | | ISO IEC 17025 Accredited | 0.00 USD | In stock | ## Images - HP 33120A 15 MHz Function/Arbitrary Waveform Generator (Pre-Owned) --- > Source: [ValueTronics](https://valuetronics.com/products/33120a-agilent-arbitrary-waveform-generator-used) > Updated: 2026-06-03