7224 Linear Amplifier

The 7224 Linear Amplifier delivers power, speed, and precision in a compact 2U form factor. Designed for lab, test, and simulation environments, it provides outstanding performance for demanding applications.

Key Features:

Up to 900W RMS output power
Operates in controlled-current or controlled-voltage mode
Field-configurable for low or high impedance loads
DC to 1 MHz small signal bandwidth
Produces up to 50A current or 158V peak
Slew rate of 90 V/μs for sharp waveform reproduction
Over-voltage, over-current, and over-temp protection circuits
Compact 2U rack-mount or benchtop design
Suitable for Helmholtz coil drivers, MRI/NMR, SMPS component testing

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Description

Compact Yet Powerful – Built for Precision and Flexibility

The 7224 Linear Amplifier is a compact, high-performance power amplifier that brings advanced capabilities typically found in larger systems to a bench-friendly 2U form factor. Built for versatility, the 7224 supports both controlled-current and controlled-voltage operation, making it a go-to solution for precision testing, simulation, and power amplification in research labs and industrial applications.

Outstanding Performance Across Frequency and Load Ranges

This amplifier delivers up to 900 watts RMS output, with a DC to 1 MHz small signal bandwidth, and can supply up to 50A current or 158V peak voltage, depending on configuration. The slew rate of 90 V/μs ensures accurate waveform reproduction, even for high-speed control signals and complex shapes.

Thanks to its field-configurable rail supply modes, the 7224 can be tailored to a variety of test setups—from low-impedance loads (as low as 0.5 ohms) to higher impedance applications. This flexibility, combined with superior signal-to-noise ratios and ultra-low distortion (THD < 0.1%), makes the amplifier ideal for Helmholtz coils, MRI/NMR systems, and switch-mode power supply testing.

Built-In Intelligence and Protection for Continuous Duty Use

The 7224 is designed for long-term performance under real-world conditions. Integrated protection circuits guard against over-voltage, over-current, over-temperature, and even circulating ground currents. LED indicators keep you informed of amplifier status, while soft-touch switches and interlock connectors provide safe and intuitive operation.

With standalone or rack-mount design, universal AC input options (120V or 220–240V), and remote control support via GPIO, the 7224 adapts easily to any test environment. Whether you’re scaling voltage in a parallel system or increasing current with a series configuration, this amplifier delivers seamless expandability and long-lasting reliability.

7224 Linear Amplifier Specifications

Category	Details
Output Power	Up to 900W RMS continuous
Frequency Bandwidth	DC to 1 MHz (small signal), rated power up to 40 kHz
Slew Rate	90 V/μs
Voltage Output	Up to ±158 Vp
Current Output	Up to 50A (field-configurable)
THD	< 0.1% (DC – 30 kHz)
Modes of Operation	Controlled-Voltage or Controlled-Current
Input Types	Balanced (20kΩ) and Unbalanced (10kΩ), selectable
Gain Settings	Voltage Mode: 20 V/V, Current Mode: 5 A/V
Remote Control	GPIO interlock and reset, current monitoring via 5A/V or 2.5A/V
Indicators	LED for Ready, Standby, Fault, Over Temp, Over Voltage, Overload
Cooling System	Forced-air with removable filters (180 CFM airflow)
Dimensions	3.5” H x 19” W x 22.75” D (8.9 x 48.3 x 57.8 cm)
Weight	46 lbs (20.9 kg); Shipping: 56 lbs (25.4 kg)
Power Requirements	120V, 20A or 220–240V, 10A (single-phase)
Operating Temp	10°C to 50°C (power de-rated above 30°C), 70% RH non-condensing