Overview
The OPA454AIDDAR is a high-voltage, high-current operational amplifier produced by Texas Instruments. This device is designed to operate over a wide power-supply range of ±5 V to ±50 V or on a single supply of 10 V to 100 V, making it versatile for various high-voltage applications. It is unity-gain stable and features a gain-bandwidth product of 2.5 MHz. The OPA454AIDDAR is internally protected against overtemperature conditions and current overloads, ensuring reliable operation. It is packaged in an 8-pin SO PowerPAD package, which facilitates easy heat sinking over an extended industrial temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | HSOIC (DDA) | - |
| Pins | 8 | - |
| Operating Temperature Range | –55 to 125 | °C |
| Power-Supply Range | ±5 V to ±50 V (10 V to 100 V single supply) | V |
| Output Load Drive | ±50 mA | mA |
| Output Voltage Swing | 1 V to Rails | V |
| Gain-Bandwidth Product | 2.5 MHz | MHz |
| Slew Rate | 13 V/µs | V/µs |
| Input Offset Voltage | ±0.2 to ±4 mV | mV |
| Input Bias Current | ±1.4 to ±100 pA | pA |
| Quiescent Current | 3.2 to 4 mA | mA |
Key Features
- Wide Power-Supply Range: Operates from ±5 V to ±50 V or on a single supply of 10 V to 100 V.
- High-Output Load Drive: Capable of driving loads up to ±50 mA.
- Wide Output Voltage Swing: Output voltage swing is from 1 V to the power supply rails.
- Independent Output Disable or Shutdown: Output can be independently disabled using the Enable or Disable Pin.
- Wide Temperature Range: Operates over an extended industrial temperature range of –40°C to +85°C.
- Internal Protection: Protected against overtemperature conditions and current overloads.
- Status Flag: An open-drain output that indicates overcurrent or overtemperature conditions.
- Small Exposed Metal Pad Package: Facilitates easy heat sinking.
Applications
- Test Equipment: Suitable for high-voltage test and measurement applications.
- Avalanche Photodiode and High-Voltage Current Sense: Ideal for applications requiring high-voltage sensing.
- Piezoelectric Cells and Transducer Drivers: Used in driving piezoelectric cells and transducers.
- Servo Drivers: Applicable in servo control systems requiring high voltage and current.
- Audio Amplifiers: Can be used in high-voltage audio amplifier circuits.
- High-Voltage Compliance Current Sources and General High-Voltage Regulators: Suitable for various high-voltage power supply and regulation applications.
Q & A
- What is the maximum operating voltage of the OPA454AIDDAR?
The OPA454AIDDAR can operate on a power-supply range of ±5 V to ±50 V or on a single supply of 10 V to 100 V.
- What is the maximum output current of the OPA454AIDDAR?
The OPA454AIDDAR can drive loads up to ±50 mA.
- What is the gain-bandwidth product of the OPA454AIDDAR?
The gain-bandwidth product of the OPA454AIDDAR is 2.5 MHz.
- How does the OPA454AIDDAR protect against overtemperature and overcurrent conditions?
The OPA454AIDDAR is internally protected against overtemperature conditions and current overloads, and it features a status flag that indicates such conditions.
- What is the operating temperature range of the OPA454AIDDAR?
The OPA454AIDDAR operates over an extended industrial temperature range of –40°C to +85°C.
- Can the output of the OPA454AIDDAR be independently disabled?
Yes, the output can be independently disabled using the Enable or Disable Pin.
- What is the package type of the OPA454AIDDAR?
The OPA454AIDDAR is packaged in an 8-pin SO PowerPAD package.
- What are some common applications of the OPA454AIDDAR?
Common applications include test equipment, avalanche photodiode and high-voltage current sense, piezoelectric cells and transducer drivers, servo drivers, audio amplifiers, and high-voltage compliance current sources.
- How does the status flag work on the OPA454AIDDAR?
The status flag is an open-drain output that indicates overcurrent or overtemperature conditions and is referenced to the Enable/Disable Common pin.
- What is the slew rate of the OPA454AIDDAR?
The slew rate of the OPA454AIDDAR is 13 V/µs.
