33120A

Keysight Technologies (Agilent HP)Arbitrary

The Keysight (formerly Agilent / HP) 33120A is a classic 15 MHz function and arbitrary waveform generator. Utilizing Direct Digital Synthesis (DDS), it delivers highly stable and accurate sine, square, and arbitrary waveforms. It features a 12-bit amplitude resolution, a 40 MSa/s sample rate, and standard built-in modulation (AM, FM, FSK, Burst) along with linear and logarithmic sweep capabilities.

Arbitrary Waveform Generation Function Generation Signal Generation

Specifications

General

Parameter	Value
Interfaces	GPIB (IEEE-488), RS-232
Display	VFD (Vacuum Fluorescent Display)
Power Consumption	50 VA max
Warm-Up Time	1 hour
Calibration Interval	1 year
Output Units	Vpp, Vrms, dBm
Isolation to Earth	42 Vpk maximum

Physical

Parameter	Value
Power Supply	100 / 120 / 220 / 240 Vac ±10%, 45-440 Hz (100/120V) or 45-66 Hz (220/240V), <50 VA
Operating Temperature	0 to 55
Dimensions (W×H×D)	212.6 x 88.5 x 273.3 mm
Weight	4 kg

Waveform Types

Parameter	Value
Standard Waveforms	Sine, Square, Triangle, Ramp, Noise, DC Volts
Built-in Arbitrary Waveforms	Sin(x)/x, Exponential Rise, Exponential Fall, Cardiac

Frequency Characteristics

Parameter	Value
Sine Range	100 µHz to 15 MHz
Square Range	100 µHz to 15 MHz
Triangle Range	100 µHz to 100 kHz
Ramp Range	100 µHz to 100 kHz
Noise Bandwidth	10 MHz
Arbitrary Waveform Range	100 µHz to 5 MHz
Frequency Resolution	10 µHz
Frequency Accuracy (1 Year)	±20 ppm

Amplitude Characteristics

Parameter	Value
Amplitude Range (into 50 Ohms)	50 mVpp to 10 Vpp
Amplitude Range (into Open Circuit)	100 mVpp to 20 Vpp
Output Impedance	50 Ω
Short Circuit Protection	Yes

DC Offset Characteristics

Parameter	Value
Offset Range (into 50 Ohms)	±5 Vpk (AC + DC)
Offset Range (into Open Circuit)	±10 Vpk (AC + DC)

Signal Purity and Characteristics

Parameter	Value
Square Rise/Fall Time	<20 ns
Square Overshoot	<4%

Arbitrary Waveform Characteristics

Parameter	Value
Sample Rate	40 MSa/s
Amplitude Resolution	12 bits
Waveform Length	8 to 16,000 points
Non-Volatile Memory Capacity	4 waveforms (16,000 points each)

Modulation Characteristics

Parameter	Value
Supported Modulation Types	AM, FM, FSK, Burst
AM Source	Internal / External
FSK Source	Internal / External
Burst Source	Internal / External

Sweep and Burst Characteristics

Parameter	Value
Sweep Type	Linear, Logarithmic

System and Control Characteristics

Parameter	Value
Command Set	SCPI

Signal Characteristics

Parameter	Value
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
Total Harmonic Distortion (DC to 20 kHz)	< 0.04%
Spurious (DC to 1 MHz)	< -65 dBc
Phase Noise	< -55 dBc in a 30 kHz band
Square Wave Duty Cycle (≤ 5 MHz)	20% to 80%
Square Wave Duty Cycle (> 5 MHz to 15 MHz)	40% to 60%
Square Wave Asymmetry	1% of period + 5 ns
Triangle/Ramp Linearity	< 0.1% of peak output

Modulation & Sweep

Parameter	Value
AM Modulation Depth	0% to 120%
FSK Internal Rate	10 mHz to 50 kHz
Sweep Time	1 ms to 500 s
Burst Count	1 to 50,000 cycles, or Infinite

Triggering

Parameter	Value
Trigger Input	TTL compatible (rising or falling edge)

Performance

Parameter	Value
Amplitude Accuracy (1 kHz)	±(1% of setting + 2 mVpp)

Inputs & Outputs

Parameter	Value
External AM Modulation Input	±5 Vpk full scale (10 kΩ impedance)

Modulation

Parameter	Value
Modulation Input Bandwidth	DC to 20 kHz

Burst

Parameter	Value
Burst Starting Phase	-360° to +360°

Technology

Direct Digital Synthesis (DDS)

Applications

Electronic Test & Measurement