Overview
The OPA547F/500 is a high-voltage, high-current operational amplifier produced by Texas Instruments. It is designed to drive a wide variety of loads and offers excellent low-level signal accuracy and high output voltage and current. The OPA547 operates from either single or dual supplies, providing design flexibility. In single-supply operation, the input common-mode range extends below ground. The amplifier is internally protected against over-temperature conditions and current overloads, and it includes features such as thermal shutdown, adjustable current limit, and output disable control.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Supply Voltage Range | +8V to +60V (Single Supply), ±4V to ±30V (Dual Supply) | V |
| Output Current | 500mA Continuous | mA |
| Output Voltage Swing | Wide Output Voltage Swing | - |
| Slew Rate | 6V/µs | V/µs |
| Bandwidth | 1MHz | Hz |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | TO-263 (KTW), DDPAK Surface-Mount | - |
| Pins | 7 | - |
| Quiescent Current | Low Quiescent Current | - |
Key Features
- Wide Supply Range: +8V to +60V (Single Supply), ±4V to ±30V (Dual Supply)
- High Output Current: 500mA Continuous
- Wide Output Voltage Swing
- Fully Protected: Thermal Shutdown, Adjustable Current Limit
- Output Disable Control and Thermal Shutdown Indicator
- High Slew Rate: 6V/µs
- Low Quiescent Current
- Available in TO-220 and DDPAK packages
Applications
- Valve and Actuator Drivers
- Synchro and Servo Drivers
- Power Supplies
- Test Equipment
- Transducer Excitation
- Audio Amplifiers
Q & A
- What is the supply voltage range of the OPA547F/500?
The OPA547F/500 operates from a single supply of +8V to +60V or a dual supply of ±4V to ±30V.
- What is the maximum output current of the OPA547F/500?
The maximum output current is 500mA continuous.
- What are the key protection features of the OPA547F/500?
The OPA547F/500 includes thermal shutdown, adjustable current limit, and output disable control.
- What is the slew rate of the OPA547F/500?
The slew rate is 6V/µs.
- What are the available package types for the OPA547F/500?
The OPA547F/500 is available in TO-263 (KTW) and DDPAK surface-mount packages.
- What is the operating temperature range of the OPA547F/500?
The operating temperature range is -40°C to +85°C.
- Can the OPA547F/500 be used in single-supply configurations?
- How does the adjustable current limit feature work on the OPA547F/500?
The adjustable current limit can be set from 0mA to 750mA using a 0 to 150µA control signal, which can be implemented with a resistor/potentiometer or controlled digitally with a DAC.
- What is the purpose of the Enable/Status (E/S) pin on the OPA547F/500?
The E/S pin disables the output stage and reduces quiescent current to conserve power. It also indicates thermal shutdown.
- Is the OPA547F/500 suitable for high-thermal-performance applications?
