ATA-100 Series Power Amplifier

Bandwidth (-3dB) DC~5MHz, Max output voltage 25Vp-p (±12.5Vp), Max output current 2Ap

Amplifying a signal without corrupting its shape or introducing loading effects depends on more than raw gain — the amplifier's input and output impedance both need to be appropriately matched to the signal source and load, or the "amplified" signal ends up distorted relative to the original. Aigtek's ATA-100 Series is built around exactly this kind of careful impedance matching, with adjustable input resistance (50Ω or 1MΩ) to match either low- or high-internal-resistance signal sources, enabling what Aigtek describes as lossless signal amplification.

Bandwidth from DC to 5MHz covers a solid general-purpose frequency range, and adjustable output resistance (1.5Ω or 50Ω) adds matching flexibility on the output side as well, letting the ATA-100 be configured appropriately for the load or measurement instrument it's feeding. Maximum output voltage of 25Vp-p (±12.5Vp) with up to 2Ap current positions the ATA-100 as a signal-level rather than power-level amplifier, prioritising fidelity over raw drive capability.

This combination of dual-sided impedance matching and lossless amplification focus makes the ATA-100 well suited to general lab signal amplification tasks where preserving the original signal's shape and characteristics through the amplification stage matters more than maximising output power.

ATA-100 Series Power Amplifier

Ideal power amplifier for amplifying AC and DC signals, DC~5MHz bandwidth, with adjustable input resistance (50Ω or 1MΩ) to match low or high internal resistance signal sources, and adjustable output resistance (1.5Ω or 50Ω).

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Model	Bandwidth (-3dB)	Voltage	Current	Power	Channel
ATA-101B Power Amplifier	DC~1MHz	25Vp-p(±12.5Vp)	2Ap	25Wp	Single	Enquire
ATA-105B Power Amplifier	DC~5MHz	25Vp-p(±12.5Vp)	2Ap	25Wp	Single	Enquire

Model Details

ATA-101B Power Amplifier: Introduction, Full Specifications & Datasheet

Product Introduction

The ATA-101B is a single-channel power amplifier capable of amplifying both AC and DC signals. With a maximum output voltage of 25Vp-p (±12.5Vp) and output power of 25Wp, it is compatible with mainstream signal generators for seamless signal amplification.

LCD Panel DisplayDynamically shows device status and parameters, offering a clear and intuitive interface.

Voltage GainAdjustable from 0 to 20dB in 2dB steps for quick adjustment to your requirements.

InputBNC interface accepting 0~10Vp-p MAX, with selectable 50Ω or 1MΩ input impedance to match high or low impedance signal sources.

OutputBNC interface.

ApplicationsElectronics teaching and research, MEMS testing, ultrasonic testing, electromagnetic field drive, piezoelectric ceramic drive.

Specifications

Model	ATA-101B
Output Type	Single-ended Output
Bandwidth (-3dB)	DC~1MHz
Maximum Output Voltage	25Vp-p (±12.5Vp)
Maximum Output Current	1Ap (DC~50Hz) 2Ap (>50Hz)
Maximum Output Power	25Wp
Fuse	2A/250V
Voltage Gain	0~20dB (2dB step)
Load RL Upper Limit	≥11Ω (DC~50Hz) ≥4.75Ω (>50Hz)
Slew Rate	≥56V/μs
Output Impedance	1.5Ω / 50Ω (customizable)
Input Impedance	50Ω / 1MΩ
Input Amplitude	0~10Vp-p MAX
Output Voltage Error	≤±3% FS @ 1kHz
Total Harmonic Distortion (THD)	≤0.5% @ 1kHz, 25Vp-p
Output Voltage Drift	≤±0.2V
Signal-to-Noise Ratio	≥60dB
Output Interface	BNC
Protection	Over Current Protection
Signal Ground	Connected to chassis and power line ground
Others
Power Supply Voltage	AC110V~240V, 50/60Hz
Operating Temperature	0°C~45°C
Storage Temperature	-20°C~50°C
Working Humidity	≤80% RH, non-condensing
Warranty	1 year
Dimensions	168×62×284mm (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-101B Power Amplifier, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-101B →

ATA-105B Power Amplifier: Introduction, Full Specifications & Datasheet

Product Introduction

The ATA-105B is a single-channel power amplifier capable of amplifying both AC and DC signals, with bandwidth up to 5MHz. With a maximum output voltage of 25Vp-p (±12.5Vp) and output power of 25Wp, it is compatible with mainstream signal generators for seamless signal amplification.

LCD Panel DisplayDynamically shows device status and parameters, offering a clear and intuitive interface.

Voltage GainAdjustable from 0 to 20dB in 2dB steps for quick adjustment to your requirements.

InputBNC interface accepting 0~10Vp-p MAX, with selectable 50Ω or 1MΩ input impedance to match high or low impedance signal sources.

OutputBNC interface.

ApplicationsElectronics teaching and research, MEMS testing, ultrasonic testing, electromagnetic field drive, piezoelectric ceramic drive.

Specifications

Model	ATA-105B
Output Type	Single-ended Output
Bandwidth (-3dB)	DC~5MHz
Maximum Output Voltage	25Vp-p (±12.5Vp)
Maximum Output Current	1Ap (DC~50Hz) 2Ap (>50Hz)
Maximum Output Power	25Wp
Fuse	2A/250V
Voltage Gain	0~20dB (2dB step)
Load RL Upper Limit	≥11Ω (DC~50Hz) ≥4.75Ω (>50Hz)
Slew Rate	≥278V/μs
Output Impedance	1.5Ω / 50Ω (customizable)
Input Impedance	50Ω / 1MΩ
Input Amplitude	0~10Vp-p MAX
Output Voltage Error	≤±3% FS @ 1kHz
Total Harmonic Distortion (THD)	≤0.5% @ 1kHz, 25Vp-p
Output Voltage Drift	≤±0.2V
Signal-to-Noise Ratio	≥60dB
Output Interface	BNC
Protection	Over Current Protection
Signal Ground	Connected to chassis and power line ground
Others
Power Supply Voltage	AC110V~240V, 50/60Hz
Operating Temperature	0°C~45°C
Storage Temperature	-20°C~50°C
Working Humidity	≤80% RH, non-condensing
Warranty	1 year
Dimensions	168×62×284mm (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-105B Power Amplifier, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATA-105B →

Related Series

ATA-1000 Series

Wide band amplifier, DC~25MHz

ATA-M Series

Single-channel amplifier, up to 800VA

Frequently Asked Questions

What does "lossless signal amplification" actually mean in practice?

It means the amplified output signal preserves the original input signal's shape and characteristics faithfully, without distortion introduced by impedance mismatch or amplifier non-linearity — achieved here through the ATA-100's adjustable input and output impedance matching options rather than a fixed, potentially mismatched configuration.

How does the ATA-100 compare to the ATA-1000 series?

Both offer adjustable input impedance and wide bandwidth; the ATA-1000 reaches further in bandwidth (25MHz versus 5MHz) while the ATA-100 offers a finer choice of output resistance options (1.5Ω/50Ω versus the ATA-1000's more general adjustable output). The right choice depends on the specific bandwidth and output matching requirement.

Why would output resistance need to be switchable between 1.5Ω and 50Ω?

Different downstream loads or measurement instruments expect different source impedances — 50Ω is a common standard for RF and general lab equipment, while a very low 1.5Ω output resistance suits applications needing to drive a low-impedance load without significant voltage drop across the amplifier's own output impedance.

See Aigtek's technical documentation for the ATA-100 series →

ATA-100 Series Power Amplifier

Frequently Asked Questions

What does "lossless signal amplification" actually mean in practice?

How does the ATA-100 compare to the ATA-1000 series?

Why would output resistance need to be switchable between 1.5Ω and 50Ω?

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