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Laboratory Power Amplifiers & Signal Sources

ATA-1000 Series Wide Band Amplifier

Bandwidth (-3dB) up to 25MHz, Max output voltage 70Vp-p (±35Vp), Max output current 2Ap

Matching an amplifier's input impedance to its signal source matters for accurate signal amplification — a mismatch between a low-impedance source and a high-impedance amplifier input (or vice versa) can distort the signal before amplification even begins. Aigtek's ATA-1000 Series addresses this directly with adjustable input resistance (50Ω or 1MΩ), letting the amplifier's input be matched to the actual source impedance rather than assuming one fixed value.

Wide bandwidth from DC to 25MHz covers a substantial frequency range for general-purpose signal amplification, and adjustable output resistance adds a further matching option on the output side, letting the ATA-1000 be configured to suit both the signal source feeding it and the load receiving its output. This dual-sided impedance flexibility distinguishes it from amplifiers with fixed input/output impedance that assume a single standard matching scenario.

The combination of wide bandwidth and adjustable impedance matching on both input and output makes the ATA-1000 well suited to general lab amplification tasks where the signal source or load characteristics vary between different test setups, rather than being fixed to one standard configuration.

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Aigtek ATA-1000 Series Wide Band Amplifier
ATA-1000 Series Wide Band Amplifier
Bandwidth DC~25MHz, adjustable input resistance (50Ω/1MΩ), adjustable output resistance.
Enquire About This Series →
ModelBandwidth (-3dB)VoltageCurrentPowerChannel 
ATA-1220E Wide band amplifierDC~21MHz60Vp-p(±30Vp)1Ap30WSingleEnquire
ATA-1372A Wide band amplifierDC~3MHz70Vp-p(±35Vp)2Ap70WpSingleEnquire
ATA-1200C Wide band amplifierDC~25MHz30Vp-p(±15Vp)1Ap15WSingleEnquire
Model Details
ATA-1220E Wide band amplifier: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-1220E is a differential-output wideband amplifier capable of amplifying both AC and DC signals, with bandwidth up to 21MHz, a maximum output voltage of 60Vp-p (±30Vp) and maximum output current of 1Ap (>50Hz). Voltage gain is digitally adjustable with one-button saving of settings, and it is compatible with mainstream signal generators.

LCD Panel DisplayDynamically shows device status and parameters with a clear, intuitive interface.
Voltage GainDigitally adjustable 0~26dB in 0.5dB steps.
InputBNC interface with selectable 50Ω or 1MΩ input impedance.
OutputBNC interface, max output 60Vp-p (±30Vp), max output current 1Ap.
Specifications
ModelATA-1220E
Output TypeDifferential Output
Bandwidth (-3dB)DC~21MHz
Maximum Output Voltage60Vp-p (±30Vp)
Maximum Output Current500mAp (DC~50Hz)  1Ap (>50Hz)
Maximum Output Power30Wp
Fuse3A/250V
Voltage Gain0~26dB (0.5dB step)
Load RL Upper Limit≥55Ω (DC~50Hz)  ≥25Ω (>50Hz)
Output Impedance5Ω / 100Ω (customizable)
Slew Rate≥2798V/μs
Input Impedance50Ω / 1MΩ
Input Amplitude0~10Vp-p MAX
Output Voltage Error≤±3% FS @ 1kHz
Total Harmonic Distortion (THD)≤0.1% @ 1kHz, 30Vp-p
Output Voltage Drift≤±0.1V
Signal-to-Noise Ratio≥80dB
Output InterfaceBNC
ProtectionOver Current and Short Circuit Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC110/220V, 50/60Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions330×149×401mm (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 ATA-1220E Wide band amplifier, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-1220E →
ATA-1372A Wide band amplifier: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-1372A is a single-channel wideband amplifier capable of amplifying both AC and DC signals, with bandwidth up to 3MHz, a maximum output voltage of 70Vp-p (±35Vp) and maximum output current of 2Ap (>50Hz). Voltage gain is digitally adjustable with one-click saving of settings, and it is compatible with mainstream signal generators.

LCD Panel DisplayDynamically shows device status and parameters with a clear, intuitive interface.
Voltage GainDigitally adjustable x0~x40, with coarse (1 step) and fine (0.1 step) adjustment modes.
InputBNC interface with selectable 50Ω or 10kΩ input impedance.
OutputBNC interface, max output 70Vp-p (±35Vp), max output current 2Ap.
Monitoring Ports100mV/V voltage monitor and 1V/A current monitor for real-time oscilloscope monitoring.
Specifications
ModelATA-1372A
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~3MHz
Maximum Output Voltage70Vp-p (±35Vp)
Maximum Output Current1Ap (DC~50Hz)  2Ap (>50Hz)
Maximum Output Power70Wp
Voltage Gainx0~40 (0.1 step/1 step)
Load RL Upper Limit≥33Ω (DC~50Hz)  ≥15.5Ω (>50Hz)
Slew Rate≥467V/μs
Voltage Monitoring100mV/V (±5% @ Output, FS)
Current Monitoring1V/A (±5% @ Output, FS)
Output Impedance≤(2Ω + 0.4μH)
Input Impedance50Ω / 10kΩ
Input Amplitude0~10Vp-p MAX
Output Voltage Error≤±2% FS @ 1kHz
Total Harmonic Distortion (THD)≤1% @ 1kHz, 70Vp-p
Output Voltage Drift≤±10mV
Ripple≤10mV
Fuse2A/250V
Output InterfaceBNC
ProtectionOver Current and Over Temperature Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC110V~240V, 50/60Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions330×149×398mm (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 ATA-1372A Wide band amplifier, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-1372A →
ATA-1200C Wide band amplifier: Introduction, Full Specifications & Datasheet
Product Introduction

The ATA-1200C is a single-channel wideband amplifier capable of amplifying both AC and DC signals, with bandwidth up to 25MHz, a maximum output voltage of 30Vp-p (±15Vp) and maximum output current of 1Ap (>50Hz). Voltage gain is digitally adjustable with one-click saving of settings, and it is compatible with mainstream signal generators.

LCD Panel DisplayDynamically shows device status and parameters with a clear, intuitive interface.
Voltage GainDigitally adjustable 0~20dB in 0.5dB steps.
InputBNC interface with selectable 50Ω or 1MΩ input impedance.
OutputBNC interface, max output 30Vp-p (±15Vp), max output current 1Ap.
Specifications
ModelATA-1200C
Output TypeSingle-ended Output
Bandwidth (-3dB)DC~25MHz
Maximum Output Voltage30Vp-p (±15Vp)
Maximum Output Current500mAp (DC~50Hz)  1Ap (>50Hz)
Maximum Output Power15Wp
Fuse3A/250V
Voltage Gain0~20dB (0.5dB step)
Load RL Upper Limit≥27.5Ω (DC~50Hz)  ≥12.5Ω (>50Hz)
Output Impedance2.5Ω / 50Ω (customizable)
Slew Rate≥1666V/μs
Input Impedance50Ω / 1MΩ
Input Amplitude0~10Vp-p MAX
Output Voltage Error≤±3% FS @ 1kHz
Total Harmonic Distortion (THD)≤0.1% @ 1kHz, 30Vp-p
Output Voltage Drift≤±0.1V
Signal-to-Noise Ratio≥80dB
Output InterfaceBNC
ProtectionOver Current and Short Circuit Protection
Signal GroundConnected to chassis and power line ground
Others
Power Supply VoltageAC110/220V, 50/60Hz
Operating Temperature0°C~45°C
Storage Temperature-20°C~50°C
Working Humidity≤80% RH, non-condensing
Warranty1 year
Dimensions330×149×401mm (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 ATA-1200C Wide band amplifier, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-1200C →
Related Series
ATA-100 Series
ATA-100 Series
Wideband low-voltage amplifier, DC~5MHz
ATA-8000 Series
ATA-8000 Series
RF power amplifier, 100kHz-25MHz

Frequently Asked Questions

Why does adjustable input resistance (50Ω vs 1MΩ) matter?

Different signal sources present different output impedances — 50Ω is a standard for many RF and lab signal sources, while 1MΩ suits higher-impedance sources like certain sensors or high-impedance probes. Matching the amplifier's input resistance to the actual source impedance avoids signal loss or distortion from an impedance mismatch.

What's the benefit of DC to 25MHz bandwidth for a general-purpose amplifier?

This wide bandwidth means the ATA-1000 can accurately amplify signals from DC (constant) up through a substantial RF-adjacent frequency range within a single instrument, covering a broad range of general lab signal amplification needs without switching to a different, narrower-bandwidth amplifier for different frequency ranges.

Can the output resistance be adjusted independently of the input resistance?

Yes — input and output resistance are separately adjustable, letting the ATA-1000 be matched appropriately to both the signal source on the input side and the load or measurement instrument on the output side, independently of each other.

See Aigtek's technical documentation for the ATA-1000 series →

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