Overview
The LF347BN/PB is a quad operational amplifier (op-amp) produced by National Semiconductor, now part of Texas Instruments. This component is designed for general-purpose applications, offering a balance of performance and cost-effectiveness. It is widely used in audio processing, signal conditioning, and other analog circuit designs. The LF347BN/PB is positioned as a reliable choice for engineers and designers seeking a versatile op-amp with moderate specifications. Its unique selling points include low input bias current, high slew rate, and wide bandwidth, making it suitable for a variety of industrial and consumer electronics applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 4 | - | Quad op-amp |
| Input Offset Voltage | 7000 | µV | Max |
| Bandwidth | 4 | MHz | - |
| Slew Rate | 13 | V/µs | Typical |
| Supply Voltage | ±15 | V | Nominal |
| Operating Temperature | 0 to 70 | °C | - |
| Input Bias Current | 0.008 | µA | Max |
| Package | DIP-14 | - | Ceramic |
Key Features
- Low input bias current for precision applications.
- High slew rate ensures fast signal response.
- Wide bandwidth suitable for audio and signal processing.
- Robust performance across a range of supply voltages.
- Compact DIP-14 package for easy integration.
Applications
The LF347BN/PB is commonly used in audio amplifiers, active filters, and signal conditioning circuits. Its low noise and high-speed characteristics make it ideal for industrial automation systems, medical instrumentation, and consumer electronics. Additionally, it is employed in data acquisition systems and analog-to-digital converters, where precision and reliability are critical.
Q & A
What is the maximum supply voltage for the LF347BN/PB?
The maximum supply voltage is ±18V.
Can the LF347BN/PB operate in single-supply configurations?
Yes, it can operate with a single supply, provided the input and output voltages are within the specified range.
What is the typical input offset voltage?
The typical input offset voltage is 3 mV.
Is the LF347BN/PB suitable for high-frequency applications?
While it has a bandwidth of 4 MHz, it is more suited for moderate-frequency applications.
What is the power consumption of the LF347BN/PB?
The power consumption is typically 3.6 mW per amplifier.
Can this op-amp drive low-impedance loads?
Yes, it can drive loads as low as 2 kΩ.
What is the input common-mode voltage range?
The input common-mode voltage range is from -12V to +12V with ±15V supplies.
Is the LF347BN/PB available in surface-mount packages?
No, it is only available in the DIP-14 package.
What is the typical gain bandwidth product?
The typical gain bandwidth product is 4 MHz.
Does the LF347BN/PB require external compensation?
No, it is internally compensated for stability.
