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AFG3021C

TektronixFunction

The Tektronix AFG3021C is a high-performance 25 MHz single-channel arbitrary function generator, offering a 250 MS/s sample rate, 14-bit vertical resolution, and 128 kpoint arbitrary waveform memory. Engineered for versatility, it features standard USB and LAN interfaces, an optional GPIB interface, and a vibrant 5.6-inch color display, making it an essential bench tool for design, testing, and education.

Arbitrary Waveform GenerationFunction GenerationSignal Generation

Specifications

General

ParameterValue
InterfacesUSB Host, USB Device, LAN (10/100 Base-T, LXI Class C), GPIB (optional via Option GL)
Display5.6-inch Color TFT LCD, 320 × 240 resolution

Physical

ParameterValue
Power Supply100 V to 240 V AC, 50 Hz to 60 Hz, or 115 V AC, 400 Hz, power consumption < 120 W
Operating Temperature0 to +50 °C
Dimensions (W×H×D)329.5 mm × 156.0 mm × 168.0 mm
Weight4.5 kg

Channel Characteristics

ParameterValue
Number of Channels1
Operating ModesContinuous, Modulation, Sweep, Burst

Waveform Generation

ParameterValue
Standard WaveformsSine, Square, Pulse, Ramp, Noise, DC, Sin(x)/x, Gaussian, Lorentz, Exponential Rise, Exponential Decay, Haversine
Sampling Rate250 MS/s
Vertical Resolution14 bits
Arbitrary Waveform Length2 to 128,000 points
Non-Volatile Memory Capacity4 user waveforms

Frequency Specifications

ParameterValue
Sine Frequency Range1 μHz to 25 MHz
Square Frequency Range1 μHz to 12.5 MHz
Pulse Frequency Range1 mHz to 12.5 MHz
Ramp Frequency Range1 μHz to 250 kHz
Arbitrary Waveform Frequency Range1 mHz to 12.5 MHz
Noise Bandwidth25 MHz (-3 dB)
Frequency Resolution1 μHz or 12 digits
Frequency Accuracy±1 ppm of setting (0 °C to 50 °C)
Aging Rate±1 ppm per year

Sine Wave Distortion and Purity

ParameterValue
Total Harmonic Distortion (THD)< 0.2% (10 Hz to 20 kHz, 1 Vp-p)
Spurious Noise (Non-Harmonic)<-70 dBc (10 Hz to 1 MHz), <-60 dBc (1 MHz to 25 MHz) @ 1 Vp-p
Phase Noise<-110 dBc/Hz at 10 kHz offset (10 MHz, 0 dBm)

Pulse & Square Wave Characteristics

ParameterValue
Rise/Fall Time≤ 18 ns
Overshoot< 5%
Duty Cycle Range (Square)20% to 80% (up to 10 MHz), 40% to 60% (10 MHz to 12.5 MHz)
Pulse Width Range30.0 ns to 999.9 s
Pulse Width Resolution10 ps or 5 digits

Amplitude and Output Characteristics

ParameterValue
Amplitude Range (into 50 Ω)10 mVp-p to 10 Vp-p
Amplitude Range (into Open Circuit)20 mVp-p to 20 Vp-p
Amplitude Accuracy±(1% of setting + 1 mV) at 1 kHz, 50 Ω load, without offset
Amplitude Resolution0.1 mVp-p, mVrms, dBm, Vp-p, or 4 digits
DC Offset Range (into 50 Ω)±5 Vpk
DC Offset Accuracy±(1% of |setting| + 5 mV + 0.5% of amplitude)
Output Impedance50 Ω
Output ProtectionShort-circuit protected
Main Output Connector TypeFront-panel BNC

Modulation, Sweep, and Burst

ParameterValue
Modulation TypesAM, FM, PM, FSK, PWM, Sweep, Burst
Internal Modulation SourcesSine, Square, Ramp, Noise, ARB
AM Modulation Depth0.0% to 120.0%
FM Deviation Range1 μHz to 12.5 MHz
PM Phase Deviation Range0.0° to 180.0°
FSK Keying Rate2 mHz to 1 MHz
PWM Duty Cycle Deviation0.0% to 50.0% of pulse period
Sweep TypeLinear, Logarithmic
Sweep Time Range1 ms to 300 s
Burst TypeTriggered, Gated
Burst Count Range1 to 1,000,000 cycles, or Infinite

Clock, Trigger, and Synchronization

ParameterValue
Internal Timebase Reference Accuracy±1 ppm (0 °C to 50 °C)
External Reference Input Frequency Range10 MHz ±10 kHz
Trigger Input LevelTTL compatible
Trigger Output LevelTTL compatible into ≥1 kΩ

Connectivity and Programming

ParameterValue
USB Interface TypeUSB 2.0 Host (Front Panel) & USB 2.0 Device (Rear Panel)
LAN Interface / LXI Compliance10/100 Base-T, LXI Class C Compliance
GPIB InterfaceIEEE-488.2 compatible
Web User Interface SupportYes, built-in LAN web server
Programming Command LanguageSCPI

Physical and Environmental

ParameterValue
Storage Temperature Range-30 °C to +70 °C
Operating Humidity Range0 °C to 30 °C: ≤ 95%, 30 °C to 40 °C: ≤ 75%, 40 °C to 50 °C: ≤ 45%

Compliance and Standards

ParameterValue
Safety CertificatesUL 61010-1, CAN/CSA-C22.2 No. 61010-1, EN 61010-1, IEC 61010-1
EMC Compliance StandardsEN 61326-1:2006, Class A
Calibration Interval1 year

Sine Wave Performance

ParameterValue
Sine Wave Amplitude Flatness< 5 MHz: ±0.15 dB, 5 MHz to 25 MHz: ±0.3 dB (1 Vp-p, relative to 1 kHz)
Sine Wave Harmonic Distortion10 Hz to 20 kHz: < -70 dBc, 20 kHz to 1 MHz: < -60 dBc, 1 MHz to 5 MHz: < -50 dBc, 5 MHz to 25 MHz: < -40 dBc (1 Vp-p)

Pulse Performance

ParameterValue
Pulse Jitter (RMS)< 100 ps (typical)

Square Performance

ParameterValue
Square Jitter (RMS)< 100 ps (typical)

Arbitrary Waveform Performance

ParameterValue
Arbitrary Waveform Jitter (RMS)< 4 ns (typical)

Ramp Performance

ParameterValue
Ramp Linearity< 0.1% of peak output (10% to 90%, 1 kHz, 1 Vp-p, typical)

Amplitude & Output

ParameterValue
Amplitude UnitsVp-p, Vrms, dBm (sine only), High Level, Low Level

Inputs & Outputs

ParameterValue
External Modulation Input BandwidthDC to 25 kHz (1 dB bandwidth)
External Modulation Input Impedance10 kΩ
External Modulation Input Range±1.0 V full scale
External Reference Input Impedance1 kΩ, AC coupled
External Reference Input Voltage Range100 mVp-p to 5 Vp-p
External Reference Output Frequency10 MHz
External Reference Output Level1.2 Vp-p into 50 Ω (typical)
Trigger Input Impedance10 kΩ
Trigger Input Minimum Pulse Width100 ns
Trigger Output Impedance50 Ω

Display & User Interface

ParameterValue
Display Resolution320 × 240 pixels
Display Size5.6 in (142 mm) diagonal

Environmental

ParameterValue
Operating AltitudeUp to 3,000 m (10,000 ft)
Non-Operating AltitudeUp to 12,192 m (40,000 ft)

General Specifications

ParameterValue
Warm-up Time20 minutes (typical)

Performance

ParameterValue
Phase Adjustment Range-180.00° to +180.00°
Phase Adjustment Resolution0.01°

Trigger

ParameterValue
Trigger SourceInternal, External, Manual

Modulation

ParameterValue
Additive Noise Range0% to 100% of amplitude setting
Additive Noise Resolution1%

Standard Waveforms

ParameterValue
Noise TypeWhite Gaussian

Sweep

ParameterValue
Sweep DirectionUp / Down

Outputs

ParameterValue
Floating VoltageMax. ±42 Vpk device ground to earth ground

Interfaces

ParameterValue
Front Panel USB PortUSB 2.0 Host (Type A)
Rear Panel USB PortUSB 2.0 Device (Type B)

Software & Control

ParameterValue
Waveform Editing Software CompatibilityArbExpress™

Power

ParameterValue
Max Power Consumption120 W
AC Input Voltage Range100 V to 240 V (±10%)
AC Input Frequency Range50 Hz to 60 Hz (100 V to 240 V), 400 Hz (115 V, ±10%)

Technology

Arbitrary/Function Generator (DDS & True Arb)

Applications

Electronic Design, Device Characterization, Sensor Simulation, Education and Training, Manufacturing Test