The Agilent/Keysight 33220A is a 20 MHz function and arbitrary waveform generator delivering direct digital synthesis (DDS) precision across benchtop and system applications. It generates seven standard waveforms—sine, square, ramp, triangle, pulse, noise, and DC—plus user-defined arbitrary waveforms with 14-bit resolution at 50 MSa/s. The instrument spans 1 µHz to 20 MHz for standard waveforms and 1 µHz to 6 MHz for arbitrary waveforms, with ±1 µHz resolution and frequency accuracy of ±(10 ppm + 3 pHz) over 90 days.
Technical Specifications
Waveform Capabilities
• Standard waveforms: Sine, square, ramp, triangle, pulse, noise, DC
• Arbitrary waveforms: 14-bit resolution, 50 MSa/s sample rate, 2 to 64 k points per waveform
• Non-volatile memory: Four arbitrary waveforms
• Included patterns: Exponential rise/fall, negative ramp, sin(x)/x, cardiac
Output Specifications
• Amplitude range (50 Ω load): 10 mVpp to 10 Vpp
• Amplitude range (open circuit): 20 mVpp to 20 Vpp
• Amplitude accuracy: ±1% of setting ± 1 mVpp at 1 kHz
• DC offset range (50 Ω): ±5 V; (open circuit): ±10 V
• DC offset accuracy: ±2% of offset ± 0.5% of amplitude ± 2 mV
• Output impedance: 50 Ω typical
• Output isolation: 42 Vpk maximum to earth
• Short-circuit protected with automatic overload disable
Frequency & Timing
• Standard waveforms: 1 µHz to 20 MHz
• Arbitrary waveforms: 1 µHz to 6 MHz
• Frequency resolution: 1 µHz
• Square wave rise/fall time: <13 ns; overshoot <2%; duty cycle 20–80% (≤10 MHz), 40–60% (≤20 MHz)
• Pulse minimum width: 20 ns (period ≤10 s) with 10 ns resolution
• Pulse edge time: <13 ns to 100 ns variable
• Ramp linearity: <0.1% of peak output (1 µHz to 200 kHz)
• Noise bandwidth: 10 MHz typical
Frequency Reference
• Internal accuracy: ±(10 ppm + 3 pHz) in 90 days; ±(20 ppm + 3 pHz) in 1 year
• External reference (Option 001): 10 MHz with ±500 Hz lock range and <2 s lock time
Modulation
• Types: AM, FM, PM, FSK, PWM
• Carrier waveforms: Sine, square, ramp, arbitrary
• Modulation source: Internal or external
– Key Features
• Direct digital synthesis ensures stable, low-distortion signals
• 14-bit arbitrary waveform resolution with up to 64 k points
• Four non-volatile memory slots for custom waveforms
• Amplitude measurement in Vpp, Vrms, dBm, or high/low levels
• Programmable modulation for advanced signal testing
– Typical Applications
Research, development, and production environments requiring precision waveform generation and modulation testing.
– Compatibility & Integration
External frequency reference capability (Option 001) enables clock synchronization in multi-instrument setups.
