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規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Active |
| AmplifierType | General Purpose |
| NumberofCircuits | 1 |
| SlewRate | 2.3V/µs |
| GainBandwidthProduct | 8 MHz |
| Current-InputBias | 2.5 nA |
| Voltage-InputOffset | 10 µV |
| Current-Supply | 3.7mA |
| Current-Output/Channel | 45 mA |
| Voltage-SupplySpan(Min) | 5 V |
| Voltage-SupplySpan(Max) | 36 V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概述
Description
The OPA227UA is a precision operational amplifier known for its low noise, low offset voltage, and high-performance specifications, making it suitable for a wide range of precision applications. It offers low input offset voltage, typically around 75 µV, and low input bias current. The amplifier features a low noise density of 3 nV/√Hz, which is beneficial for applications requiring high accuracy and low distortion. With a wide supply voltage range (±2.5 V to ±18 V), it provides flexibility in various circuit designs. The OPA227UA boasts a high open-loop gain and a wide bandwidth, enabling it to maintain performance across different frequencies. It also has excellent DC precision, stability, and temperature drift characteristics. Typical use cases include precision data acquisition, test equipment, and medical instrumentation. The "UA" suffix indicates an SOIC-8 package, which is compact and suitable for space-constrained applications. Overall, the OPA227UA is valued in circuits demanding high precision and reliability.
Equivalent
The OPA227UA is a precision operational amplifier. Equivalent products include:
1. LT1677 by Linear Technology (Analog Devices)
2. AD8671 by Analog Devices
3. OP07 by Analog Devices
4. LM358 by Texas Instruments (for some applications, though not a direct replacement)
5. TLE2071 by Texas Instruments
These alternatives vary in specifics like bandwidth, noise, and voltage range, so ensure compatibility for your application requirements.
1. LT1677 by Linear Technology (Analog Devices)
2. AD8671 by Analog Devices
3. OP07 by Analog Devices
4. LM358 by Texas Instruments (for some applications, though not a direct replacement)
5. TLE2071 by Texas Instruments
These alternatives vary in specifics like bandwidth, noise, and voltage range, so ensure compatibility for your application requirements.
Features
The OPA227UA is a precision operational amplifier known for its excellent performance characteristics. Key features include:
1. Low Noise: The amplifier boasts a very low noise level of 3 nV/√Hz, making it suitable for applications requiring high accuracy and stability.
2. Low Offset Voltage: It features a low offset voltage of around 75 µV, enhancing precision in various applications.
3. Low Drift: The device offers low offset voltage drift over temperature, typically around 0.2 µV/°C.
4. Wide Bandwidth: With a wide bandwidth of 8 MHz, the OPA227UA supports high-speed operations.
5. High Slew Rate: It has a slew rate of 2.3 V/µs, allowing it to respond quickly to changes in input.
6. High Open-Loop Gain: The amplifier provides high open-loop gain, which is essential for accurate signal amplification.
7. Wide Supply Range: It operates over a wide supply voltage range from ±2.5V to ±18V.
8. Low Distortion: The amplifier ensures low total harmonic distortion, improving signal fidelity.
These features make the OPA227UA ideal for precision instrumentation, data acquisition systems, and other applications demanding high accuracy.
1. Low Noise: The amplifier boasts a very low noise level of 3 nV/√Hz, making it suitable for applications requiring high accuracy and stability.
2. Low Offset Voltage: It features a low offset voltage of around 75 µV, enhancing precision in various applications.
3. Low Drift: The device offers low offset voltage drift over temperature, typically around 0.2 µV/°C.
4. Wide Bandwidth: With a wide bandwidth of 8 MHz, the OPA227UA supports high-speed operations.
5. High Slew Rate: It has a slew rate of 2.3 V/µs, allowing it to respond quickly to changes in input.
6. High Open-Loop Gain: The amplifier provides high open-loop gain, which is essential for accurate signal amplification.
7. Wide Supply Range: It operates over a wide supply voltage range from ±2.5V to ±18V.
8. Low Distortion: The amplifier ensures low total harmonic distortion, improving signal fidelity.
These features make the OPA227UA ideal for precision instrumentation, data acquisition systems, and other applications demanding high accuracy.
Pinout
The OPA227UA is a precision operational amplifier in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a concise description of its pin configuration and functions:
1. Pin 1 (Offset Trim 1): Used for offset voltage adjustment.
2. Pin 2 (Inverting Input): The inverting input terminal of the amplifier.
3. Pin 3 (Non-inverting Input): The non-inverting input terminal of the amplifier.
4. Pin 4 (V-): Negative power supply voltage.
5. Pin 5 (Offset Trim 2): Used for offset voltage adjustment.
6. Pin 6 (Output): The output terminal of the amplifier.
7. Pin 7 (V+): Positive power supply voltage.
8. Pin 8 (No Connection): Typically not connected or used for additional functions in custom applications.
The OPA227UA is known for its low noise, low distortion, and high precision, making it ideal for high-accuracy data acquisition and control applications.
1. Pin 1 (Offset Trim 1): Used for offset voltage adjustment.
2. Pin 2 (Inverting Input): The inverting input terminal of the amplifier.
3. Pin 3 (Non-inverting Input): The non-inverting input terminal of the amplifier.
4. Pin 4 (V-): Negative power supply voltage.
5. Pin 5 (Offset Trim 2): Used for offset voltage adjustment.
6. Pin 6 (Output): The output terminal of the amplifier.
7. Pin 7 (V+): Positive power supply voltage.
8. Pin 8 (No Connection): Typically not connected or used for additional functions in custom applications.
The OPA227UA is known for its low noise, low distortion, and high precision, making it ideal for high-accuracy data acquisition and control applications.
Manufacturer
The OPA227UA is manufactured by Texas Instruments. Texas Instruments (TI) is a global technology company headquartered in Dallas, Texas, USA. It specializes in the design and manufacture of semiconductors and various integrated circuits, which are used in a wide range of electronic products. TI is one of the largest semiconductor companies in the world and has a significant presence in the analog and embedded processing markets. The company serves a diverse set of industries, including automotive, industrial, personal electronics, and communications equipment. Texas Instruments has a reputation for innovation and quality in the electronics industry.
Application
The OPA227UA is a precision operational amplifier known for its low noise and low offset voltage, making it suitable for a variety of applications. Key application areas include:
1. Data Acquisition Systems: Provides accurate signal processing with minimal error.
2. Medical Instrumentation: Ideal for sensitive measurements in devices like ECGs and EEGs.
3. Industrial Process Controls: Ensures precise control and monitoring of industrial systems.
4. Test Equipment: Used in high-precision measurement devices.
5. Transducer Interfaces: Offers accurate conversion of physical signals to electrical signals.
6. Audio Processing: Enhances audio quality by reducing noise and distortion.
These applications leverage the amplifier's stability, precision, and reliability.
1. Data Acquisition Systems: Provides accurate signal processing with minimal error.
2. Medical Instrumentation: Ideal for sensitive measurements in devices like ECGs and EEGs.
3. Industrial Process Controls: Ensures precise control and monitoring of industrial systems.
4. Test Equipment: Used in high-precision measurement devices.
5. Transducer Interfaces: Offers accurate conversion of physical signals to electrical signals.
6. Audio Processing: Enhances audio quality by reducing noise and distortion.
These applications leverage the amplifier's stability, precision, and reliability.
Package
The OPA227UA is an operational amplifier packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. This surface-mount package is designed for electronics applications requiring a compact footprint.
