Overview
The LF347BN/NOPB is a high-performance, low-cost quad operational amplifier manufactured by Texas Instruments. This product is designed for general-purpose applications, offering a balance of speed, precision, and low power consumption. It is part of the JFET-input operational amplifier family, making it ideal for applications requiring high input impedance and low input bias current. The LF347BN/NOPB is widely used in audio processing, signal conditioning, and active filtering, targeting engineers and designers in industrial, automotive, and consumer electronics sectors.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 4 | - | Quad operational amplifier |
| Supply Voltage | ±18 | V | Maximum |
| Input Bias Current | 50 | pA | Typical |
| Gain Bandwidth Product | 4 | MHz | Typical |
| Slew Rate | 13 | V/µs | Typical |
| Operating Temperature Range | 0 to 70 | °C | Commercial grade |
| Package | PDIP-14 | - | Plastic dual in-line package |
Key Features
- JFET Input: Provides high input impedance and low input bias current, making it suitable for high-impedance signal sources.
- Low Noise: Ensures minimal noise interference in sensitive applications like audio processing.
- Wide Supply Voltage Range: Supports operation from ±18V, offering flexibility in various power supply configurations.
- High Slew Rate: Enables fast signal response, ideal for high-speed applications.
- Quad Configuration: Four independent amplifiers in a single package, saving board space and reducing component count.
Applications
The LF347BN/NOPB is versatile and finds applications in multiple fields, including:
- Audio Processing: Used in preamplifiers, mixers, and equalizers due to its low noise and high input impedance.
- Signal Conditioning: Ideal for amplifying and filtering signals in sensor interfaces and data acquisition systems.
- Active Filters: Suitable for designing low-pass, high-pass, and band-pass filters in communication systems.
- Industrial Automation: Employed in control systems and instrumentation for precise signal amplification.
- Automotive Electronics: Used in vehicle audio systems and sensor interfaces.
Q & A
1. What is the input bias current of the LF347BN/NOPB?
The typical input bias current is 50 pA.
2. What is the maximum supply voltage for this operational amplifier?
The maximum supply voltage is ±18V.
3. Can the LF347BN/NOPB be used in audio applications?
Yes, its low noise and high input impedance make it suitable for audio processing.
4. What is the gain bandwidth product of this amplifier?
The gain bandwidth product is typically 4 MHz.
5. Is the LF347BN/NOPB suitable for high-speed applications?
Yes, it has a high slew rate of 13 V/µs, making it ideal for high-speed signal processing.
6. What is the operating temperature range of this component?
It operates within a temperature range of 0 to 70°C.
7. Does the LF347BN/NOPB have a single or quad configuration?
It has a quad configuration, with four independent amplifiers in one package.
8. What package type is used for the LF347BN/NOPB?
It is available in a PDIP-14 package.
9. Can this amplifier be used in automotive electronics?
Yes, it is suitable for automotive applications such as audio systems and sensor interfaces.
10. Is the LF347BN/NOPB RoHS compliant?
Yes, it is RoHS compliant, ensuring it meets environmental standards.
