Overview
The OPA548F/500 is a high-voltage, high-current operational amplifier produced by Texas Instruments. This device is designed to drive a wide variety of loads and offers excellent low-level signal accuracy and high-output voltage and current. It operates from either single or dual supplies, providing design flexibility, and is internally protected against overtemperature conditions and current overloads. The OPA548F/500 is available in industry-standard packages such as the 7-lead TO-220 and 7-lead DDPAK surface-mount plastic power package, ensuring excellent thermal performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range (Single Supply) | 8 V to 60 V | V |
| Supply Voltage Range (Dual Supply) | ±4 V to ±30 V | V |
| Output Current (Continuous) | 3 A | A |
| Output Current (Peak) | 5 A | A |
| Operating Temperature Range | –40°C to 85°C | °C |
| Slew Rate | 10 V/μs | V/μs |
| Quiescent Current | Low | - |
| Package Types | 7-lead TO-220, 7-lead DDPAK | - |
Key Features
- Wide Supply Range: Single supply: 8 V to 60 V, Dual supply: ±4 V to ±30 V.
- High-Output Current: 3-A continuous, 5-A peak.
- Wide Output Voltage Swing: Suitable for driving various loads.
- Internal Protection: Thermal shutdown, adjustable current limit, output disable control, and thermal shutdown indicator.
- High Slew Rate: 10 V/μs.
- Low Quiescent Current: Efficient power consumption.
- Adjustable Current Limit: Set from 0 A to 5 A using an external resistor and potentiometer or digitally controlled.
- Enable/Status (E/S) Pin: Disables the output stage and monitors thermal shutdown status.
Applications
- Semiconductor Manufacturing: Suitable for various semiconductor testing and manufacturing processes.
- Semiconductor Test: Ideal for testing semiconductor devices.
- Lab and Field Instrumentation: Used in laboratory and field instruments requiring high current and voltage capabilities.
- LCD Test: Applicable in testing LCD displays.
- Analog Input Module: Used in analog input modules for various applications.
- Ultrasound Scanner: Suitable for use in ultrasound scanning equipment.
Q & A
- What is the supply voltage range for the OPA548F/500?
The OPA548F/500 operates from a single supply of 8 V to 60 V or a dual supply of ±4 V to ±30 V.
- What is the maximum continuous output current of the OPA548F/500?
The maximum continuous output current is 3 A, with a peak current of 5 A.
- What are the key protection features of the OPA548F/500?
The device features thermal shutdown, adjustable current limit, output disable control, and a thermal shutdown indicator.
- How can the current limit be adjusted on the OPA548F/500?
The current limit can be adjusted from 0 A to 5 A using an external resistor and potentiometer or digitally controlled.
- What is the function of the Enable/Status (E/S) pin?
The E/S pin disables the output stage and can be monitored to determine if the device is in thermal shutdown.
- What are the available package types for the OPA548F/500?
The device is available in 7-lead TO-220 and 7-lead DDPAK surface-mount plastic power packages.
- What is the operating temperature range of the OPA548F/500?
The device operates over an extended industrial temperature range of –40°C to 85°C.
- What is the slew rate of the OPA548F/500?
The slew rate is 10 V/μs.
- What are some typical applications of the OPA548F/500?
It is used in semiconductor manufacturing, semiconductor testing, lab and field instrumentation, LCD testing, analog input modules, and ultrasound scanners.
- How does the OPA548F/500 handle thermal shutdown?
The device shuts down the output when the die temperature reaches approximately 160°C and resets when the die has cooled to 140°C.
