Overview
The OPA551PAG4, produced by Texas Instruments, is a high-voltage, high-current operational amplifier. This device is part of the OPA55x series, which includes the OPA551 and OPA552 models. The OPA551 is specifically designed to be unity-gain stable, making it versatile for a wide range of applications. It features high output current capability, low noise, and a wide supply voltage range, making it suitable for various industrial and commercial uses.
The OPA551PAG4 is a low-cost, laser-trimmed, monolithic integrated circuit that provides excellent low-level accuracy and high output swing. It is internally protected against overtemperature conditions and current overloads, ensuring reliable operation in demanding environments.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage Range | ±4 V | ±30 V | V | ||
| Output Current | Continuous | 200 mA | mA | ||
| Input Voltage Noise Density | f = 1 kHz | 14 nV/√Hz | nV/√Hz | ||
| Slew Rate | G = 1 | 15 V/µs | V/µs | ||
| Bandwidth | G = 1 | 3 MHz | MHz | ||
| Input Offset Voltage | VCM = 0 V, IO = 0 | ±1 mV | ±3 mV | ±5 mV | mV |
| Input Bias Current | ±20 pA | ±100 pA | pA | ||
| Operating Temperature Range | –40°C | +125°C | °C | ||
| Package Types | PDIP-8, SOIC-8, DDPAK/TO-263-7 |
Key Features
- Wide Supply Range: ±4 V to ±30 V
- High Output Current: 200 mA Continuous
- Low Noise: 14 nV/√Hz
- Fully Protected: Thermal Shutdown and Output Current-Limited
- Thermal Shutdown Indicator: Provides a current output to alert the user when thermal shutdown has occurred
- Wide Output Swing: 2 V from Rail
- Fast Slew Rate: 15 V/µs for OPA551
- Wide Bandwidth: 3 MHz for OPA551
- Package Options: PDIP-8, SOIC-8, and DDPAK/TO-263-7 surface-mount plastic power package
Applications
- Telephony: Suitable for telecommunication systems
- Test Equipment: Used in various test and measurement applications
- Audio Amplifiers: Ideal for audio amplification due to its low noise and high output swing
- Transducer Excitation: Can be used to drive transducers in industrial and scientific applications
- Servo Drivers: Applicable in servo control systems requiring high current and precision
Q & A
- What is the maximum output current of the OPA551PAG4?
The maximum continuous output current is 200 mA.
- What is the slew rate of the OPA551PAG4?
The slew rate of the OPA551PAG4 is 15 V/µs.
- What is the bandwidth of the OPA551PAG4?
The bandwidth of the OPA551PAG4 is 3 MHz.
- What are the package options available for the OPA551PAG4?
The OPA551PAG4 is available in PDIP-8, SOIC-8, and DDPAK/TO-263-7 packages.
- What is the operating temperature range of the OPA551PAG4?
The operating temperature range is –40°C to +125°C.
- Does the OPA551PAG4 have thermal protection?
Yes, it has internal thermal shutdown circuitry and a thermal shutdown indicator.
- What is the input voltage noise density of the OPA551PAG4?
The input voltage noise density is 14 nV/√Hz at 1 kHz.
- Can the OPA551PAG4 be used in audio applications?
Yes, it is suitable for audio amplification due to its low noise and high output swing.
- What is the maximum supply voltage for the OPA551PAG4?
The maximum supply voltage is ±30 V.
- Is the OPA551PAG4 ESD sensitive?
Yes, it is sensitive to electrostatic discharge (ESD) and requires proper handling precautions.
