Overview
The OPA454AIDDARG4, produced by Texas Instruments, is a low-cost operational amplifier designed for high-voltage and high-current applications. This device is unity-gain stable and features a gain-bandwidth product of 2.5 MHz. It is internally protected against overtemperature conditions and current overloads, ensuring reliable operation over a wide range of power supply voltages from ±5 V to ±50 V or on a single supply of 10 V to 100 V. The OPA454 is known for its excellent accuracy, wide output voltage swing, and freedom from phase inversion problems common in similar amplifiers.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| 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 |
| Operating Temperature Range | –40°C to +85°C | °C |
| Package Type | 8-Pin SO PowerPAD™ | |
| Quiescent Current | 3.2 to 4 mA | mA |
| Input Offset Voltage | ±0.2 to ±4 mV | mV |
| Input Bias Current | ±1.4 to ±100 pA | pA |
| Slew Rate | 13 V/µs | V/µs |
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.
- 8-Pin SO Package with Exposed Metal Pad: Easy to heatsink for thermal management.
- Internal Protection: Protected against overtemperature conditions and current overloads.
- Status Flag: An open-drain output that indicates overcurrent or overtemperature conditions.
Applications
- Test Equipment: Suitable for various test and measurement applications.
- Avalanche Photodiode and High-Voltage Current Sense: Ideal for high-voltage sensing applications.
- Piezoelectric Cells and Transducer Drivers: Used in driving piezoelectric cells and transducers.
- Servo Drivers: Applicable in servo motor control systems.
- Audio Amplifiers: Can be used in high-voltage audio amplifier circuits.
- High-Voltage Compliance Current Sources: Suitable for applications requiring high-voltage compliance.
- General High-Voltage Regulators and Power Supplies: Used in various high-voltage power supply and regulator circuits.
Q & A
- What is the maximum power supply voltage for the OPA454?
The OPA454 can operate with a power supply range of ±5 V to ±50 V or on a single supply of 10 V to 100 V.
- What is the output load drive capability of the OPA454?
The OPA454 can drive loads up to ±50 mA.
- What is the gain-bandwidth product of the OPA454?
The gain-bandwidth product of the OPA454 is 2.5 MHz.
- What is the operating temperature range of the OPA454?
The OPA454 operates over an extended industrial temperature range of –40°C to +85°C.
- How can the output of the OPA454 be disabled?
The output can be independently disabled using the Enable or Disable Pin, which has its own common return pin.
- What type of package does the OPA454 come in?
The OPA454 comes in an 8-Pin SO PowerPAD™ package.
- Does the OPA454 have internal protection features?
Yes, the OPA454 is internally protected against overtemperature conditions and current overloads.
- What is the purpose of the Status Flag pin on the OPA454?
The Status Flag pin is an open-drain output that indicates overcurrent or overtemperature conditions.
- What are some common applications for the OPA454?
The OPA454 is suitable for test equipment, avalanche photodiode and high-voltage current sense, piezoelectric cells and transducer drivers, servo drivers, audio amplifiers, high-voltage compliance current sources, and general high-voltage regulators and power supplies.
- How does the OPA454 handle thermal management?
The OPA454 features an exposed metal pad package that is easy to heatsink, facilitating effective thermal management over the extended industrial temperature range.
