Overview
The OPA548FKTWT 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 its input common-mode range extends below ground in single-supply operation. The OPA548FKTWT is internally protected against overtemperature conditions and current overloads, and it features adjustable current limit, output disable control, and thermal shutdown indicator. The device is available in industry-standard packages such as the 7-lead TO-220 and 7-lead DDPAK surface-mount packages, ensuring excellent thermal performance over an extended industrial temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TO-263 (KTW) | - |
| Pins | 7 | - |
| Operating Temperature Range | –40 to 85 | °C |
| Supply Voltage (Single Supply) | 8 to 60 | V |
| Supply Voltage (Dual Supply) | ±4 to ±30 | V |
| Output Current (Continuous) | 3 | A |
| Output Current (Peak) | 5 | A |
| Slew Rate | 10 | V/µs |
| Quiescent Current | ±17 to ±20 | mA |
| Thermal Shutdown Temperature | 160 | °C |
| Reset from Shutdown Temperature | 140 | °C |
Key Features
- Wide supply range: Single supply from 8 V to 60 V and dual supply from ±4 V to ±30 V.
- High-output current: 3 A continuous and 5 A peak.
- Wide output voltage swing.
- Fully protected: Thermal shutdown, adjustable current limit, output disable control, and thermal shutdown indicator.
- High slew rate: 10 V/µs.
- Low quiescent current.
- Available in 7-lead TO-220 and 7-lead DDPAK surface-mount packages).
- Enable/Status (E/S) pin for output disable and thermal shutdown status monitoring).
Applications
- Semiconductor manufacturing and test).
- Lab and field instrumentation).
- LCD test).
- Analog input modules).
- Ultrasound scanners).
Q & A
- What is the operating temperature range of the OPA548FKTWT?
The operating temperature range is –40°C to 85°C).
- What are the supply voltage ranges for the OPA548FKTWT?
The device can operate 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 OPA548FKTWT?
The maximum continuous output current is 3 A, with a peak current of 5 A).
- What protection features does the OPA548FKTWT have?
The device features thermal shutdown, adjustable current limit, output disable control, and a thermal shutdown indicator).
- What is the slew rate of the OPA548FKTWT?
The slew rate is 10 V/µs).
- How can the current limit be adjusted on the OPA548FKTWT?
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 function of the Enable/Status (E/S) pin?
The E/S pin can disable the output stage and monitor thermal shutdown status. It also reduces quiescent current when the output is disabled).
- What are the typical packages available for the OPA548FKTWT?
The device is available in 7-lead TO-220 and 7-lead DDPAK surface-mount packages).
- What is the thermal shutdown temperature of the OPA548FKTWT?
The thermal shutdown temperature is approximately 160°C, resetting when the die has cooled to 140°C).
- What is the quiescent current of the OPA548FKTWT?
The quiescent current is typically ±17 to ±20 mA).
