規格
| 屬性 | 價值 |
| Package / Case | Bulk,Tube |
| Part Status | Active |
| Amplifier Type | General Purpose |
| Number of Circuits | 1 |
| Slew Rate | 15V/µs |
| Gain Bandwidth Product | 2 MHz |
| Current - Input Bias | 10 pA |
| Voltage - Input Offset | 1.5 mV |
| Supply Current | 4.2mA |
| Current - Output / Channel | 15 mA |
| Voltage - Supply Span(Min) | 20 V |
| Voltage - Supply Span(Max) | 90 V |
| Operating Temperature | -25°C ~ 85°C |
| Mounting Type | Surface Mount |
概述
Description
The OPA445AU is a high-voltage operational amplifier designed for precision applications. It is part of the OPA445 series, which is known for its wide operating voltage range and high slew rate, making it suitable for demanding analog tasks. The device operates with supply voltages up to ±45V, allowing it to handle large output swings and drive significant loads.
Key features of the OPA445AU include low noise, low distortion, and high open-loop gain, which contribute to its accuracy and reliability in various applications. It also offers internal frequency compensation, ensuring stability across a broad range of operating conditions. Its wide bandwidth and fast response time make it ideal for use in audio, industrial, and scientific instrumentation where precision is critical.
The OPA445AU is available in various package options, including the SOIC (Small Outline Integrated Circuit) package, which provides a compact footprint for space-constrained designs. It is widely used in applications requiring high voltage and high performance, such as automated test equipment, data acquisition systems, and medical instrumentation.
Key features of the OPA445AU include low noise, low distortion, and high open-loop gain, which contribute to its accuracy and reliability in various applications. It also offers internal frequency compensation, ensuring stability across a broad range of operating conditions. Its wide bandwidth and fast response time make it ideal for use in audio, industrial, and scientific instrumentation where precision is critical.
The OPA445AU is available in various package options, including the SOIC (Small Outline Integrated Circuit) package, which provides a compact footprint for space-constrained designs. It is widely used in applications requiring high voltage and high performance, such as automated test equipment, data acquisition systems, and medical instrumentation.
Equivalent
The OPA445AU is a high-voltage operational amplifier. Equivalent products include:
1. LT1490A from Analog Devices
2. TL783 from Texas Instruments
3. LM143 from Texas Instruments
4. ADHV4702-1 from Analog Devices
Each of these alternatives may have slight differences in specifications, so it's important to review the datasheets to ensure compatibility with your specific application requirements.
1. LT1490A from Analog Devices
2. TL783 from Texas Instruments
3. LM143 from Texas Instruments
4. ADHV4702-1 from Analog Devices
Each of these alternatives may have slight differences in specifications, so it's important to review the datasheets to ensure compatibility with your specific application requirements.
Features
The OPA445AU is a high-voltage operational amplifier that offers several key features:
1. High Voltage Operation: It supports a wide supply voltage range, typically from ±10V to ±45V, making it suitable for applications requiring high voltage.
2. Output Voltage Swing: The amplifier provides a wide output voltage swing close to the supply rails, enhancing its utility in various high-voltage applications.
3. Low Offset Voltage: It has a low input offset voltage, which minimizes error and improves precision in signal processing tasks.
4. Low Bias Current: The device features low input bias current, reducing errors in applications with high-impedance sources.
5. Slew Rate: The OPA445AU offers a moderate slew rate, balancing speed and stability for general-purpose applications.
6. Wide Bandwidth: It has a decent bandwidth to support a variety of signal processing applications efficiently.
7. Thermal Protection: The device includes thermal protection mechanisms to prevent damage from overheating.
8. Package Type: The OPA445AU is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and easy to use on PCBs.
These features make the OPA445AU suitable for applications in industrial, instrumentation, and other high-voltage environments.
1. High Voltage Operation: It supports a wide supply voltage range, typically from ±10V to ±45V, making it suitable for applications requiring high voltage.
2. Output Voltage Swing: The amplifier provides a wide output voltage swing close to the supply rails, enhancing its utility in various high-voltage applications.
3. Low Offset Voltage: It has a low input offset voltage, which minimizes error and improves precision in signal processing tasks.
4. Low Bias Current: The device features low input bias current, reducing errors in applications with high-impedance sources.
5. Slew Rate: The OPA445AU offers a moderate slew rate, balancing speed and stability for general-purpose applications.
6. Wide Bandwidth: It has a decent bandwidth to support a variety of signal processing applications efficiently.
7. Thermal Protection: The device includes thermal protection mechanisms to prevent damage from overheating.
8. Package Type: The OPA445AU is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and easy to use on PCBs.
These features make the OPA445AU suitable for applications in industrial, instrumentation, and other high-voltage environments.
Pinout
The OPA445AU is an operational amplifier from Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin configuration and functions:
1. Pin 1 (NC/NC) - No Connection: Typically not connected; may be used for mechanical support or isolation.
2. Pin 2 (IN-) - Inverting Input: The inverting terminal of the operational amplifier.
3. Pin 3 (IN+) - Non-Inverting Input: The non-inverting terminal of the operational amplifier.
4. Pin 4 (V-) - Negative Power Supply: Connects to the negative power supply voltage.
5. Pin 5 (NC/NC) - No Connection: Typically not connected; may be used for mechanical support or isolation.
6. Pin 6 (OUT) - Output: The output terminal of the operational amplifier.
7. Pin 7 (V+) - Positive Power Supply: Connects to the positive power supply voltage.
8. Pin 8 (NC/NC) - No Connection: Typically not connected; may be used for mechanical support or isolation.
The OPA445AU is designed for high-voltage applications and offers high performance with low distortion, making it suitable for precision amplification.
1. Pin 1 (NC/NC) - No Connection: Typically not connected; may be used for mechanical support or isolation.
2. Pin 2 (IN-) - Inverting Input: The inverting terminal of the operational amplifier.
3. Pin 3 (IN+) - Non-Inverting Input: The non-inverting terminal of the operational amplifier.
4. Pin 4 (V-) - Negative Power Supply: Connects to the negative power supply voltage.
5. Pin 5 (NC/NC) - No Connection: Typically not connected; may be used for mechanical support or isolation.
6. Pin 6 (OUT) - Output: The output terminal of the operational amplifier.
7. Pin 7 (V+) - Positive Power Supply: Connects to the positive power supply voltage.
8. Pin 8 (NC/NC) - No Connection: Typically not connected; may be used for mechanical support or isolation.
The OPA445AU is designed for high-voltage applications and offers high performance with low distortion, making it suitable for precision amplification.
Manufacturer
The OPA445AU is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company known for designing and manufacturing a wide range of integrated circuits and electronic components. They produce analog chips, digital signal processors, microcontrollers, and various other electronic components used in an array of applications, from consumer electronics to industrial equipment. TI is recognized for its focus on innovation and quality, supplying essential components for numerous industries worldwide.
Application
The OPA445AU is a high-voltage operational amplifier suitable for various applications. Key areas include:
1. Industrial Controls: Used in systems that require high-voltage operation for enhanced control and precision.
2. Test Equipment: Ideal for applications demanding wide voltage range and low distortion.
3. Data Acquisition: Supports high voltage signal conditioning and processing.
4. Power Supply Regulation: Ensures stable output in high-voltage power supplies.
5. Medical Equipment: Used in devices needing precise, high-voltage operational capabilities.
6. Telecommunications: Aids in signal processing and amplification.
7. Piezoelectric Drivers: Provides necessary voltage to drive piezoelectric elements.
Its ability to handle high voltages while maintaining low noise and distortion makes it versatile across these domains.
1. Industrial Controls: Used in systems that require high-voltage operation for enhanced control and precision.
2. Test Equipment: Ideal for applications demanding wide voltage range and low distortion.
3. Data Acquisition: Supports high voltage signal conditioning and processing.
4. Power Supply Regulation: Ensures stable output in high-voltage power supplies.
5. Medical Equipment: Used in devices needing precise, high-voltage operational capabilities.
6. Telecommunications: Aids in signal processing and amplification.
7. Piezoelectric Drivers: Provides necessary voltage to drive piezoelectric elements.
Its ability to handle high voltages while maintaining low noise and distortion makes it versatile across these domains.
Package
The OPA445AU is an operational amplifier that comes in a Surface-Mount Device (SMD) package type known as SOIC-8 (Small Outline Integrated Circuit with 8 pins).
