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Laboratory Power Amplifiers & Signal Sources

ATG-300 Series Power Signal Generator

Outputs sine, square, triangle, and pulse wave, Maximum output power 810Wp, Bandwidth (-3dB) DC~30kHz

Driving a piezoelectric actuator, an ultrasonic transducer, or another power-hungry load with a precisely shaped waveform needs more than a standard signal generator can deliver — a conventional function generator produces accurate waveforms but at signal-level power, leaving a separate amplification stage needed before the waveform can actually drive the load. Aigtek's ATG-300 Series combines both functions directly, generating sine, square, triangle, and pulse waveforms at up to 810Wp of output power.

Bandwidth to 30kHz (-3dB) covers a solid range of low-to-mid-frequency drive applications, and the ability to select internal or external input signal gives flexibility in how the waveform is generated — internally programmed for standalone use, or externally driven when the waveform needs to originate from another instrument or control system while the ATG-300 handles the power amplification.

Combining waveform generation and power delivery in a single instrument removes a separate amplifier stage from the test setup, simplifying the signal chain for applications like MEMS testing, piezoelectric actuator drive, and other power-type loads that need an accurately shaped waveform at real drive power rather than signal-level output.

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Aigtek ATG-300 Series Power Signal Generator
ATG-300 Series Power Signal Generator
Outputs sine waves, square waves, triangle waves, and pulse waves. Choice of internal or external input signal. Maximum output 810Wp drives power-type loads.
Enquire About This Series →
ModelBandwidth (-3dB)Output FormVoltageCurrentPower 
ATG-304DC~30kHzSingle90Vp-p(±45Vp)8Ap360WpEnquire
ATG-308DC~30kHzDifferential180Vp-p(±90Vp)8Ap720WpEnquire
ATG-309DC~30kHzSingle90Vp-p(±45Vp)18Ap810WpEnquire
Model Details
ATG-304: Introduction, Full Specifications & Datasheet
Product Introduction

The ATG-304 is a power signal source that outputs sine, square, triangle and pulse waveforms, using either its internal signal source or an external input. With a maximum output power of 360Wp, it can drive high-power loads, and voltage gain is digitally adjustable.

LCD Panel DisplayDynamically shows device status and parameters with a clear, intuitive interface.
Two Operating ModesInternal signal: power signal source mode, with waveform, frequency and voltage set on the unit. External signal (BNC, 5kΩ input impedance): amplifier mode.
Voltage GainIn amplifier mode, digitally adjustable from 0 to 30 times in 1-step increments.
OutputBanana sockets, max output voltage 90Vp-p (±45Vp), max output current 8Ap.
Specifications
ModelATG-304
Number of Channel1
Output TypeSingle-ended Output
Output WaveformSine, Square, Triangle and Pulse
Bandwidth (-3dB)DC~30kHz
Maximum Output Voltage90Vp-p (±45Vp)
Maximum Output Current4Ap (DC~50Hz)  8Ap (>50Hz)
Maximum Output Power360Wp
Fuse8A/250V
Voltage Gainx0~30 (1 step)
Load RL Upper Limit≥11.15Ω (DC~50Hz)  ≥5.5Ω (>50Hz)
Slew Rate≥6V/μs
Output Impedance0.1Ω
Input Impedance5kΩ
Input Amplitude0~10Vp-p MAX
Output Voltage Error≤±3% FS @ 1kHz
Total Harmonic Distortion (THD)≤0.5% @ 1kHz, 90Vp-p
Output Voltage Zero Drift≤±0.3V
Signal-to-Noise Ratio≥80dB
Output Interface4mm Banana socket
ProtectionOver Current Protection
Signal GroundConnected to the enclosure and power line ground
Others
Power Supply VoltageAC220V±10%, 50Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions442×164×474mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATG-304, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATG-304 →
ATG-308: Introduction, Full Specifications & Datasheet
Product Introduction

The ATG-308 is a power signal source that outputs sine, square, triangle and pulse waveforms, using either its internal signal source or an external input. With a maximum output power of 720Wp, it can drive high-power loads, and voltage gain is digitally adjustable.

LCD Panel DisplayDynamically shows device status and parameters with a clear, intuitive interface.
Two Operating ModesInternal signal: power signal source mode, with waveform, frequency and voltage set on the unit. External signal (BNC, 5kΩ input impedance): amplifier mode.
Voltage GainIn amplifier mode, digitally adjustable from 0 to 60 times in 1-step increments.
OutputBanana sockets, max output voltage 180Vp-p (±90Vp), max output current 8Ap.
Specifications
ModelATG-308
Number of Channel1
Output TypeDifferential output
Output WaveformSine, Square, Triangle and Pulse
Bandwidth (-3dB)DC~30kHz
Maximum Output Voltage180Vp-p (±90Vp)
Maximum Output Current4Ap (DC~50Hz)  8Ap (>50Hz)
Maximum Output Power720Wp
Fuse8A/250V
Voltage Gainx0~60 (1 step)
Load RL Upper Limit≥22Ω (DC~50Hz)  ≥10.75Ω (>50Hz)
Slew Rate≥12V/μs
Output Impedance0.5Ω
Input Impedance5kΩ
Input Amplitude0~10Vp-p MAX
Output Voltage Error≤±3% FS @ 1kHz
Total Harmonic Distortion (THD)≤0.5% @ 1kHz, 90Vp-p
Output Voltage Zero Drift≤±0.3V
Signal-to-Noise Ratio≥80dB
Output Interface4mm Banana socket
ProtectionOver Current Protection
Signal GroundConnected to the enclosure and power line ground
Others
Power Supply VoltageAC220V±10%, 50Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions442×164×474mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATG-308, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATG-308 →
ATG-309: Introduction, Full Specifications & Datasheet
Product Introduction

The ATG-309 is a power signal source that outputs sine, square, triangle and pulse waveforms, using either its internal signal source or an external input. With a maximum output power of 810Wp, it can drive high-power loads, and voltage gain is digitally adjustable.

LCD Panel DisplayDynamically shows device status and parameters with a clear, intuitive interface.
Two Operating ModesInternal signal: power signal source mode, with waveform, frequency and voltage set on the unit. External signal (BNC, 5kΩ input impedance): amplifier mode.
Voltage GainIn amplifier mode, digitally adjustable from 0 to 30 times in 1-step increments.
OutputBanana sockets, max output voltage 90Vp-p (±45Vp), max output current 18Ap.
Specifications
ModelATG-309
Number of Channel1
Output TypeSingle-ended Output
Output WaveformSine, Square, Triangle and Pulse
Bandwidth (-3dB)DC~30kHz
Maximum Output Voltage90Vp-p (±45Vp)
Maximum Output Current9Ap (DC~50Hz)  18Ap (>50Hz)
Maximum Output Power810Wp
Fuse10A/250V
Voltage Gainx0~30 (1 step)
Load RL Upper Limit≥4.9Ω (DC~50Hz)  ≥2.4Ω (>50Hz)
Slew Rate≥6V/μs
Output Impedance0.1Ω
Input Impedance5kΩ
Input Amplitude0~10Vp-p MAX
Output Voltage Error≤±3% FS @ 1kHz
Total Harmonic Distortion (THD)≤0.5% @ 1kHz, 90Vp-p
Output Voltage Zero Drift≤±0.3V
Signal-to-Noise Ratio≥80dB
Output Interface4mm Banana socket
ProtectionOver Current Protection
Signal GroundConnected to the enclosure and power line ground
Others
Power Supply VoltageAC220V±10%, 50Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions442×164×474mm (W×H×D)
Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.
Technical Documentation

Download the full technical datasheet for the ATG-309, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATG-309 →
Related Series
ATG-3000 Series
ATG-3000 Series
Power signal generator, DC~100kHz
ATA-300 Series
ATA-300 Series
High-power amplifier, up to 4000Wp, 80A
ATA-3000 Series
ATA-3000 Series
Power amplifier, up to 1000Wp, 20A

Frequently Asked Questions

What's the advantage of a combined signal generator and power amplifier over separate instruments?

A separate function generator plus power amplifier setup requires matching the two instruments' bandwidth and signal characteristics, adds cabling and potential signal integrity issues between them, and takes up more bench space. A combined instrument like the ATG-300 removes that integration step, delivering the shaped power waveform directly from one unit.

When should I use external rather than internal signal input?

External input is useful when the waveform itself needs to come from another source — a function generator producing a more complex or application-specific waveform shape, or a control system driving the signal dynamically — with the ATG-300 then providing the power amplification stage rather than generating the waveform itself.

What kind of loads is the ATG-300 built to drive?

Power-type loads that need real drive power rather than signal-level output — applications like piezoelectric actuators, ultrasonic transducers, and similar power-hungry devices where the load itself demands watts of drive power delivered in an accurately shaped waveform.

See Aigtek's technical documentation for the ATG-300 series →

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Related Reading

Read: Combined Signal Generation and Power Amplification for Coil Driving