TEXAS INSTRUMENTS OPA549T High-Voltage Operational Amplifier, 900kHz, 8V-60V, 8

The TEXAS INSTRUMENTS OPA549T is a robust, high-voltage/high-current operational amplifier, engineered to drive a wide variety of demanding loads with precision. This laser-trimmed monolithic integrated circuit delivers exceptional accuracy for low-level signals alongside a high output voltage and substantial current capability. Designed for maximum flexibility, the OPA549T can operate from either single or dual power supplies, with an input common-mode range that extends below the negative rail.

A standout feature is its sophisticated, user-selectable current limit. Unlike designs that utilise a series power resistor, the OPA549T senses the load indirectly. This allows for precise current limiting, adjustable from 0 to 10A using a simple resistor or potentiometer, or controlled digitally via a voltage-out or current-out DAC. Comprehensive internal protection safeguards against over-temperature conditions and current overloads. The enable/status (E/S) pin provides dual functionality for output disable control and thermal shutdown indication.

Key Specifications & Features

• High Output Current: Capable of 8A continuous and 10A peak output current.
• Wide Voltage Range: Operates from a supply voltage of 8V to 60V.
• High Slew Rate: 9V/µs slew rate ensures fast signal response.
• Adjustable Protection: Features thermal shutdown and an accurate, adjustable current limit.
• Control Flexibility: Includes output disable control and a control reference pin.
• Environmental Compliance: A green product containing no antimony or bromine (Sb/Br).

With its combination of power, protection, and precision, the OPA549T is an ideal solution for engineers designing robust control and drive systems.