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規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| AmplifierType | General Purpose |
| NumberofCircuits | 4 |
| SlewRate | 0.8V/µs |
| GainBandwidthProduct | 1 MHz |
| Current-InputBias | 4 nA |
| Voltage-InputOffset | 20 µV |
| Current-Output/Channel | 35 mA |
| Voltage-SupplySpan(Min) | 4 V |
| Voltage-SupplySpan(Max) | 36 V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 14-SOIC (0.154, 3.90mm Width) |
概述
Description
The OPA4277UA/2K5 is a high-precision operational amplifier from Texas Instruments, designed for applications requiring ultra-low offset voltage and low drift. This amplifier is part of the OPAx277 series, known for its excellent DC precision, making it ideal for instrumentation, data acquisition, and control systems.
Key features of the OPA4277UA/2K5 include low offset voltage (max 20 μV), low offset drift (0.1 μV/°C), and low bias current (max 2 nA). It offers low noise operation, enhancing performance in low-level signal applications. The amplifier operates over a wide supply voltage range from ±2.25V to ±18V, providing flexibility for various designs.
The device comes in a compact SOIC package and supports both single and dual supply operations. The "2K5" in the part number indicates its packaging and shipping configuration. The OPA4277UA/2K5 is suitable for precision analog applications, including medical instrumentation, sensor signal conditioning, and precision filtering. Its robust performance and reliability make it a popular choice for engineers seeking high accuracy and stability in their designs.
Key features of the OPA4277UA/2K5 include low offset voltage (max 20 μV), low offset drift (0.1 μV/°C), and low bias current (max 2 nA). It offers low noise operation, enhancing performance in low-level signal applications. The amplifier operates over a wide supply voltage range from ±2.25V to ±18V, providing flexibility for various designs.
The device comes in a compact SOIC package and supports both single and dual supply operations. The "2K5" in the part number indicates its packaging and shipping configuration. The OPA4277UA/2K5 is suitable for precision analog applications, including medical instrumentation, sensor signal conditioning, and precision filtering. Its robust performance and reliability make it a popular choice for engineers seeking high accuracy and stability in their designs.
Equivalent
The OPA4277UA/2K5 is a precision operational amplifier from Texas Instruments. Equivalent products with similar specifications include:
1. LT1014 by Analog Devices (formerly Linear Technology) - Precision Quad Operational Amplifier.
2. OPA404 by Texas Instruments - Precision Quad Op Amp.
3. MC33079 by ON Semiconductor - Low Noise Quad Op Amp.
4. LMC6484 by Texas Instruments - CMOS Quad Rail-to-Rail Input and Output Operational Amplifier.
These equivalents are selected based on similar precision, low offset voltage, and low noise characteristics. Always verify specific requirements and pin compatibility for substitution.
1. LT1014 by Analog Devices (formerly Linear Technology) - Precision Quad Operational Amplifier.
2. OPA404 by Texas Instruments - Precision Quad Op Amp.
3. MC33079 by ON Semiconductor - Low Noise Quad Op Amp.
4. LMC6484 by Texas Instruments - CMOS Quad Rail-to-Rail Input and Output Operational Amplifier.
These equivalents are selected based on similar precision, low offset voltage, and low noise characteristics. Always verify specific requirements and pin compatibility for substitution.
Features
The OPA4277UA/2K5 is a precision operational amplifier with several key features:
1. Low Offset Voltage: Offers a low offset voltage of 20 µV, enhancing accuracy in DC-coupled applications.
2. Low Drift: Features a low offset voltage drift of 0.1 µV/°C, ensuring stability over a range of temperatures.
3. Low Noise: Exhibits low noise performance, with a voltage noise density of 0.3 µV peak-to-peak over 0.1 Hz to 10 Hz.
4. High Open-Loop Gain: Provides a high open-loop gain of 130 dB, improving linearity and precision.
5. Wide Supply Range: Supports a wide supply voltage range from ±2.25V to ±18V, suitable for various applications.
6. Low Bias Current: Features a low input bias current of 0.2 nA, which is beneficial for high-impedance sensor interfaces.
7. Rail-to-Rail Outputs: Delivers rail-to-rail output swing to maximize dynamic range.
8. Temperature Range: Operates over a wide temperature range from –40°C to 125°C, making it suitable for industrial environments.
9. High CMRR: Offers a high common-mode rejection ratio (CMRR) of 120 dB, minimizing noise from power supply variations.
These characteristics make the OPA4277UA/2K5 ideal for precision applications requiring high accuracy and stability.
1. Low Offset Voltage: Offers a low offset voltage of 20 µV, enhancing accuracy in DC-coupled applications.
2. Low Drift: Features a low offset voltage drift of 0.1 µV/°C, ensuring stability over a range of temperatures.
3. Low Noise: Exhibits low noise performance, with a voltage noise density of 0.3 µV peak-to-peak over 0.1 Hz to 10 Hz.
4. High Open-Loop Gain: Provides a high open-loop gain of 130 dB, improving linearity and precision.
5. Wide Supply Range: Supports a wide supply voltage range from ±2.25V to ±18V, suitable for various applications.
6. Low Bias Current: Features a low input bias current of 0.2 nA, which is beneficial for high-impedance sensor interfaces.
7. Rail-to-Rail Outputs: Delivers rail-to-rail output swing to maximize dynamic range.
8. Temperature Range: Operates over a wide temperature range from –40°C to 125°C, making it suitable for industrial environments.
9. High CMRR: Offers a high common-mode rejection ratio (CMRR) of 120 dB, minimizing noise from power supply variations.
These characteristics make the OPA4277UA/2K5 ideal for precision applications requiring high accuracy and stability.
Pinout
The OPA4277UA/2K5 is a precision operational amplifier from Texas Instruments. It is a quad op-amp, meaning it contains four operational amplifiers in a single package. The device is typically provided in a 14-pin SOIC (Small Outline Integrated Circuit) package.
Key functions and features of the OPA4277UA include:
- High precision with low offset voltage.
- Low noise and low drift, making it suitable for precision applications.
- Wide supply voltage range and rail-to-rail output.
- Low input bias current.
This op-amp is well-suited for applications requiring high accuracy and stability, such as instrumentation, data acquisition, and active filters.
Key functions and features of the OPA4277UA include:
- High precision with low offset voltage.
- Low noise and low drift, making it suitable for precision applications.
- Wide supply voltage range and rail-to-rail output.
- Low input bias current.
This op-amp is well-suited for applications requiring high accuracy and stability, such as instrumentation, data acquisition, and active filters.
Manufacturer
The OPA4277UA/2K5 is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a broad range of electronic products. It is one of the world's largest manufacturers of analog and embedded processing chips, which are vital components in electronic devices. The company serves various industries, including automotive, consumer electronics, industrial, and communications. TI is known for its focus on innovation and engineering, providing solutions that help customers create more efficient and effective electronic systems.
Application
The OPA4277UA/2K5 is a precision operational amplifier known for its low offset voltage and low drift. It is well-suited for applications requiring high accuracy and stability. Typical application areas include data acquisition systems, medical instrumentation, precision sensor conditioning, strain gauge amplifiers, and high-resolution data converters. Additionally, its low noise and wide bandwidth make it ideal for audio processing and telecommunications. The amplifier is also used in industrial control systems and test equipment where precision and reliability are crucial.
Package
The OPA4277UA/2K5 is an operational amplifier with a package type of SOIC-14 (Small Outline Integrated Circuit with 14 pins). The "/2K5" indicates it is supplied in a tape and reel format with 2,500 units per reel, typically for automated manufacturing processes.
