Overview
The OPA549MKVC is a high-voltage, high-current operational amplifier produced by Texas Instruments. This laser-trimmed monolithic integrated circuit is designed to drive a wide variety of loads, offering excellent low-level signal accuracy and high output voltage and current. It operates from either single or dual power supplies, providing design flexibility, and is internally protected against over-temperature conditions and current overloads. The OPA549MKVC is particularly suited for applications in defense, aerospace, and medical fields due to its robust performance and reliability.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Output Current (Continuous) | - | 8 | - | A |
| Output Current (Peak) | - | 10 | - | A |
| Supply Voltage Range (Single Supply) | 8 | - | 60 | V |
| Supply Voltage Range (Dual Supply) | ±4 | - | ±30 | V |
| Operating Temperature Range | -55 | - | 125 | °C |
| Junction Temperature | - | - | 150 | °C |
| Slew Rate | - | 9 | - | V/μs |
| Gain-Bandwidth Product | - | 0.9 | - | MHz |
| Input Offset Voltage | ±1 | ±5 | ±7 | mV |
| Input Bias Current | -100 | -500 | - | nA |
Key Features
- High output current capability: up to 8 A continuous and 10 A peak.
- Wide power supply range: single supply from 8 V to 60 V and dual supply from ±4 V to ±30 V.
- Internal protection against over-temperature conditions and current overloads.
- Adjustable current limit from 0 A to 10 A using a resistor, potentiometer, or digital-to-analog converter (DAC).
- Enable/Status (E/S) pin for monitoring thermal shutdown and disabling the output stage.
- Thermal shutdown indicator and output disable control.
- High slew rate of 9 V/μs and gain-bandwidth product of 0.9 MHz.
- Available in an 11-lead power package with a copper tab for easy heat sink mounting.
Applications
- Valve and actuator drivers.
- Synchro and servo drivers.
- Power supplies.
- Test equipment.
- Transducer excitation.
- Audio power amplifiers.
Q & A
- What is the maximum continuous output current of the OPA549MKVC?
The maximum continuous output current is 8 A, with a peak current of up to 10 A.
- What is the operating temperature range of the OPA549MKVC?
The operating temperature range is from -55°C to 125°C.
- How can the current limit be adjusted on the OPA549MKVC?
The current limit can be adjusted from 0 A to 10 A using a resistor, potentiometer, or digital-to-analog converter (DAC).
- What is the purpose of the Enable/Status (E/S) pin?
The E/S pin can be monitored to determine if the device is in thermal shutdown and can be forced low to disable the output stage.
- What type of package is the OPA549MKVC available in?
The OPA549MKVC is available in an 11-lead power package with a copper tab for heat sink mounting.
- What are some common applications for the OPA549MKVC?
Common applications include valve and actuator drivers, synchro and servo drivers, power supplies, test equipment, transducer excitation, and audio power amplifiers.
- How does the thermal shutdown protection work on the OPA549MKVC?
The device disables the output when the junction temperature reaches approximately 160°C and re-enables it when the temperature cools to approximately 140°C.
- What is the slew rate of the OPA549MKVC?
The slew rate is 9 V/μs.
- Can the OPA549MKVC operate from a single or dual power supply?
Yes, it can operate from either a single supply (8 V to 60 V) or a dual supply (±4 V to ±30 V).
- What is the gain-bandwidth product of the OPA549MKVC?
The gain-bandwidth product is 0.9 MHz.
