The ACPL-782T is a precision isolation amplifier manufactured by Avago Technologies (now Broadcom). It is designed for high accuracy current and voltage sensing in electronic power converters, motor drives, and other applications requiring high isolation and accuracy. It uses sigma-delta modulation and chopping techniques to achieve excellent stability, linearity, and common-mode rejection.

Applications

• Current sensing in motor drives
• Voltage sensing in inverters
• Power supply feedback control
• Isolated analog signal transmission
• Renewable energy systems (solar inverters, wind turbines)

Features

• High accuracy: 0.5% gain tolerance
• High linearity: 0.05% nonlinearity
• High common-mode rejection: 15 kV/µs
• High isolation voltage: 5000 VRMS
• Wide bandwidth: 200 kHz
• Over-temperature detection

Benefits

• Precise current and voltage measurements
• Accurate feedback control for power converters
• Robust performance in noisy environments
• Enhanced safety through high isolation
• Versatile signal handling with wide bandwidth
• Protection against over-temperature conditions

Additional Details

The ACPL-782T isolation amplifier is available in a surface-mount package. It has a differential input that allows for direct connection to shunt resistors or voltage dividers. The high common-mode rejection ensures accurate measurements even in the presence of high-frequency noise. The over-temperature detection feature protects the amplifier from thermal damage. The 5000 VRMS isolation voltage provides a high level of safety and reliability.

This isolation amplifier is designed to provide a cost-effective and high-performance solution for demanding current and voltage sensing applications. The combination of high accuracy, high linearity, and high isolation voltage makes it an excellent choice for various electronic power systems.