LF347N

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LF347N

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規格

屬性 價值
Package Tube
ProductStatus Obsolete
AmplifierType J-FET
NumberofCircuits 4
SlewRate 16V/µs
GainBandwidthProduct 4 MHz
Current-InputBias 20 pA
Voltage-InputOffset 3 mV
Current-Supply 1.4mA (x4 Channels)
Current-Output/Channel 40 mA
Voltage-SupplySpan(Min) 44 V
Voltage-SupplySpan(Max) 44 V
OperatingTemperature 0°C ~ 70°C
MountingType Through Hole
Package/Case 14-DIP (0.300, 7.62mm)

概述

Description

The LF347N is a high-speed, low-power operational amplifier (op-amp) manufactured by Texas Instruments. It belongs to the LF347 series, which is known for its wide bandwidth and low input bias current. The device offers JFET inputs, providing high input impedance and low input offset voltage, making it suitable for precision applications.
Key features of the LF347N include a wide gain bandwidth product of around 4 MHz, low input bias current typically in the picoampere range, and low noise. The op-amp operates over a wide supply voltage range, usually from ±5V to ±15V, which makes it versatile for different circuit requirements.
The LF347N is commonly used in applications requiring accurate signal processing and amplification, such as audio processing, data acquisition systems, and instrumentation. Its quad package, containing four independent op-amps, provides the convenience of multiple amplifiers in a single IC.
Overall, the LF347N is a reliable choice for engineers seeking a balance of performance, power efficiency, and affordability in designing analog electronic circuits.

Equivalent

The LF347N is a low-noise JFET-input operational amplifier. Equivalent products include the TL084, TL074, and AD713. These op-amps offer similar features, such as low input bias current, wide bandwidth, and low noise, making them suitable substitutes in applications requiring precision signal processing. Ensure to check specific parameters like voltage supply and package type to match your application needs.

Features

The LF347N is a quad operational amplifier known for its low noise and high speed, suitable for various applications requiring precision. Key features include:
1. Low Noise: Designed to minimize interference, ensuring clear signal amplification.
2. Wide Bandwidth: Offers a large bandwidth, making it suitable for high-speed applications.
3. High Slew Rate: Capable of rapid voltage changes, enhancing performance in dynamic environments.
4. Low Input Bias Current: Minimizes error due to the input current, ideal for precision applications.
5. Wide Supply Voltage Range: Operates effectively over a broad range of supply voltages, increasing versatility.
6. Low Harmonic Distortion: Ensures signal fidelity, crucial for audio and other sensitive applications.
7. Internal Frequency Compensation: Simplifies circuitry, reducing the need for external components.
8. Quad Amplifier: Provides four op-amps in a single package, optimizing space and cost.
These features make the LF347N a reliable choice for a variety of applications like active filters, integrators, and general-purpose amplification.

Pinout

The LF347N is a quad operational amplifier that comes in a 14-pin dual in-line package (DIP). Here is a brief outline of the pin functions:
1. Pin 1: Output of op-amp 1
2. Pin 2: Inverting input of op-amp 1
3. Pin 3: Non-inverting input of op-amp 1
4. Pin 4: V+ (positive power supply)
5. Pin 5: Non-inverting input of op-amp 2
6. Pin 6: Inverting input of op-amp 2
7. Pin 7: Output of op-amp 2
8. Pin 8: Output of op-amp 3
9. Pin 9: Inverting input of op-amp 3
10. Pin 10: Non-inverting input of op-amp 3
11. Pin 11: V- (negative power supply)
12. Pin 12: Non-inverting input of op-amp 4
13. Pin 13: Inverting input of op-amp 4
14. Pin 14: Output of op-amp 4
The LF347N is designed for high-speed and low-noise applications, featuring wide bandwidth and low power consumption, suitable for precision amplification tasks.

Manufacturer

The LF347N is a quad operational amplifier, and it was originally manufactured by National Semiconductor. National Semiconductor was a company specializing in the design and manufacture of analog devices and subsystems. It was well-known for its contributions to the semiconductor industry, particularly in the area of analog technology. In 2011, National Semiconductor was acquired by Texas Instruments, a major American technology company that designs and manufactures semiconductors and various integrated circuits. Texas Instruments is a leading player in the semiconductor industry, with a broad portfolio of products that serve different sectors, including automotive, industrial, electronics, and communications. Since the acquisition, Texas Instruments has continued to support and produce many of National Semiconductor's products, including the LF347N, under its own brand.

Application

The LF347N is a low-noise JFET-input operational amplifier known for its high input impedance and wide bandwidth. Its application areas include:
1. Audio Equipment: Used in high-fidelity audio systems for minimal distortion and noise.
2. Signal Processing: Ideal for filtering, amplification, and integration in analog signal processing.
3. Instrumentation: Used in precision instruments for accurate signal measurements due to its low offset voltage.
4. Sensor Interfaces: Suitable for interfacing with sensors where signal integrity is crucial.
5. Data Acquisition Systems: Employed in systems requiring high-speed and accurate data conversion.
6. Medical Devices: Utilized in medical instrumentation for reliable and low-noise performance.
These characteristics make the LF347N versatile for various precision and low-noise applications.

Package

The LF347N is a quad operational amplifier that typically comes in a 14-pin Dual In-line Package (DIP).

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