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LM381N
Audio/video amplifier
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LM381N 數據表
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詳細說明
The LM381N is a general-purpose operational amplifier from Texas Instruments that is commonly used in audio and other low-frequency applications. It is a high-performance amplifier with a wide range of operating voltage and can operate from a single supply voltage as low as 4V up to 36V. The LM381N has a high input impedance of 2MΩ and low input bias current, making it suitable for applications where high input impedance and low input offset voltage are required.The LM381N has a unity-gain bandwidth of 4 MHz and a slew rate of 0.8V/μs, making it suitable for audio applications requiring moderate bandwidth and speed. It has a high open-loop gain of 85dB and a low input offset voltage of 2mV, ensuring accurate signal amplification and minimal distortion.The LM381N is available in an 8-pin DIP package and is designed to be easily integrated into various electronic circuits. It features short-circuit protection and thermal shutdown to prevent damage to the device in case of overloading or overheating.
主要特徵
- Low noise, wide bandwidth operational amplifier
- High gain (typically 50 dB)
- Internal frequency compensation
- Low input bias current (5nA)
- Low input noise voltage (16nV/√Hz)
- Low supply current (2.0mA)
- Operating voltage range: ±4V to ±18V
應用
- Audio amplification in radios, TVs, and audio equipment
- Signal conditioning for instruments and sensors
- Intercom systems
- Motor controls
- Power supply regulators
- Industrial control systems
- Medical equipment
- Measurement instrumentation
- Communication systems
- Automotive electronics
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Part Life Cycle Code | Obsolete | Reach Compliance Code | |
| ECCN Code | EAR99 | HTS Code ! | 8542.33.00.01 |
| Consumer IC Type | VIDEO PREAMPLIFIER | JESD-30 Code | R-PDIP-T14 |
| Number of Terminals | 14 | Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | Package Style | IN-LINE |
| Qualification Status ! | Not Qualified | Surface Mount ! | NO |
| Terminal Form ! | THROUGH-HOLE | Terminal Position | DUAL |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is LM381N?
The LM381N is a monolithic operational amplifier designed by Texas Instruments. It is a high-performance amplifier suitable for a wide range of applications including audio amplification, precision instrumentation, and control systems.
How Does LM381N Work?
The LM381N operates as a general-purpose operational amplifier with high gain, bandwidth, and slew rate. It amplifies input signals with precision and low distortion, making it suitable for audio applications and signal processing tasks. The amplifier features a versatile design that allows for various configuration options to meet different application requirements.
How Many Pins does LM381N have and What are the Functions of the Pinout Configuration?
The LM381N is housed in an 8-pin PDIP (Plastic Dual In-Line Package) package. The pinout configuration includes:
- V+: Positive power supply pin.
- V-: Negative power supply pin.
- IN-: Inverting input pin.
- IN+: Non-inverting input pin.
- OUT: Output pin.
- NC: No connection pin (unused).
What are the Pros and Cons of LM381N?
Pros:
- High Performance: Offers high gain, bandwidth, and slew rate for accurate signal amplification.
- Versatile: Suitable for a wide range of applications including audio amplification and control systems.
- Robust Design: Monolithic construction ensures reliability and stability.
- Cost-Effective: Provides high performance at a reasonable cost.
Cons:
- Single-Supply Operation: May require additional components for single-supply operation.
- Noisy: Can be susceptible to noise interference in high-gain applications.
Are There Any Equivalents/Alternatives to LM381N for Recommendation?
- The LM358 from Texas Instruments is a dual-operational amplifier that can serve as an alternative to the LM381N.
- Alternatives to the LM381N include the UA741 from Texas Instruments and the MC3403 from ON Semiconductor.
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