Overview
The OPA548TG3, produced by Texas Instruments, is a high-voltage, high-current operational amplifier designed to drive a wide variety of loads. This device is known for its low cost, high performance, and robust protection features. It operates from either single or dual supplies, offering design flexibility, and is suitable for applications requiring high slew rates and low quiescent current. The OPA548TG3 is internally protected against overtemperature conditions and current overloads, making it reliable for demanding environments.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (V+ to V–) | - | - | 60 | V |
| Output Current (Continuous) | - | - | ±3 | A |
| Output Current (AC Peak) | - | - | 3 | Arms |
| Output Current Limit | 0 | - | 5 | A |
| Slew Rate | - | 10 | - | V/μs |
| Quiescent Current | - | - | 20 | mA |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Types | - | - | 7-lead TO-220, 7-lead DDPAK | - |
Key Features
- Adjustable current limit from 0 A to 5 A using an external resistor and potentiometer or digital control.
- Enable/Status (E/S) pin for output disable control and thermal shutdown status monitoring.
- High slew rate of 10 V/μs.
- Low quiescent current.
- Internal thermal shutdown protection.
- Single or dual supply operation with input common-mode range extending below ground in single-supply mode.
- Available in industry-standard 7-lead TO-220 and 7-lead DDPAK surface-mount packages.
Applications
- Semiconductor manufacturing and test.
- Lab and field instrumentation.
- LCD test equipment.
- Analog input modules.
- Ultrasound scanners.
Q & A
- What is the maximum supply voltage for the OPA548TG3?
The maximum supply voltage for the OPA548TG3 is 60 V. - What is the maximum continuous output current of the OPA548TG3?
The maximum continuous output current is ±3 A. - How is the current limit adjusted on the OPA548TG3?
The current limit can be adjusted from 0 A to 5 A using an external resistor and potentiometer or digitally with a voltage-out or current-out DAC. - What is the purpose of the Enable/Status (E/S) pin?
The E/S pin allows for output disable control and monitoring of thermal shutdown status. - What are the available package types for the OPA548TG3?
The device is available in 7-lead TO-220 and 7-lead DDPAK surface-mount packages. - What is the operating temperature range for the OPA548TG3?
The operating temperature range is from –40°C to 85°C. - Does the OPA548TG3 have thermal protection?
Yes, the device has internal thermal shutdown protection that shuts down the output when the die temperature reaches approximately 160°C. - Can the OPA548TG3 operate on single or dual supplies?
Yes, it can operate on either single or dual supplies. - What is the slew rate of the OPA548TG3?
The slew rate is 10 V/μs. - What are some typical applications of the OPA548TG3?
Typical applications include semiconductor manufacturing and test, lab and field instrumentation, LCD test equipment, analog input modules, and ultrasound scanners.
