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LF351N

Name: LF351N
Rating: 4.7 (12 reviews)

IC OPAMP JFET 1 CIRCUIT 8DIP

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仕様

Part Status	Obsolete
Amplifier Type	J-FET
Number of Circuits	1
Slew Rate	16V/µs
Gain Bandwidth Product	4 MHz
Current - Input Bias	20 pA
Voltage - Input Offset	3 mV
Current - Supply	1.4mA
Current - Output / Channel	40 mA
Voltage - Supply Span (Min)	6 V
Voltage - Supply Span (Max)	32 V
Operating Temperature	0°C ~ 70°C
Mounting Type	Through Hole
Package / Case	8-DIP (0.300", 7.62mm)
Supplier Device Package	8-DIP
Base Product Number	LF351

概要

Description

The LF351N is a low-noise, high-speed operational amplifier designed for various analog applications. It features three matched, high-gain, internally compensated op-amps in a single package, making it suitable for complex signal processing tasks. The LF351N operates with a wide supply voltage range, typically from ±5V to ±15V, and offers a high input impedance (around 10^12 ohms) and low output impedance, which minimizes loading effects on preceding stages.
Key specifications include a slew rate of 13 V/µs and a bandwidth of approximately 1 MHz at a gain of 1, allowing it to handle fast signal changes effectively. It is commonly used in audio processing, active filters, and signal conditioning circuits due to its low noise and distortion characteristics. The LF351N is available in various package types, making it versatile for different applications in consumer electronics, instrumentation, and industrial equipment.

Features

The LF351N is a low-noise, JFET-input operational amplifier known for its versatility in various applications. Key features include:
1. Input Impedance: High input impedance (typically 10^12 ohms) reduces loading effects on signal sources.
2. Low Noise: Designed for low noise operation, making it suitable for audio and precision applications.
3. Wide Bandwidth: Offers a gain-bandwidth product of approximately 10 MHz, allowing for effective amplification of high-frequency signals.
4. Single-Supply Operation: Can operate with a single supply voltage, enhancing design flexibility.
5. High Slew Rate: With a slew rate of around 13 V/µs, it responds quickly to rapid signal changes.
6. Output Swing: Capable of outputting close to the supply rails, which is beneficial for low voltage applications.
7. Temperature Range: Operates over a wide temperature range, ensuring reliability in various environments.
These features make the LF351N suitable for instrumentation, audio processing, and signal conditioning applications.

Package

The LF351N is typically packaged in a dual in-line package (DIP) format, specifically an 8-pin DIP. This package type allows for easy mounting on PCBs and is commonly used in analog applications.

Pinout

The LF351N is a low-noise JFET-input operational amplifier housed in a 8-pin dual in-line package (DIP).
Pin Configuration:
1. Offset Null - For offset voltage adjustment.
2. Inverting Input (-) - Input for the inverting signal.
3. Non-inverting Input (+) - Input for the non-inverting signal.
4. V- - Negative power supply.
5. Offset Null - For offset voltage adjustment (connected to pin 1).
6. Output - Amplified output signal.
7. V+ - Positive power supply.
8. NC - No connection (not used).
Functionality: The LF351N can operate with a wide supply voltage range and is suitable for various applications, including signal conditioning, filtering, and audio processing, due to its high input impedance and low noise characteristics.

Manufacturer

The LF351N is manufactured by Texas Instruments, Inc. Texas Instruments (TI) is a prominent American technology company known for designing and manufacturing semiconductors and various electronics. Founded in 1930, TI initially focused on oil exploration technology but later diversified into electronics, becoming a leader in digital signal processing (DSP) and analog technologies. The LF351N is a precision operational amplifier widely used in various applications, including audio processing, instrumentation, and signal conditioning. TI is recognized for its innovation in the semiconductor industry and has a strong presence in both consumer and industrial markets.

Application

The LF351N is a low-noise, high-gain JFET-input operational amplifier commonly used in various applications, including audio processing, signal conditioning, active filters, and instrumentation. Its low offset voltage and high input impedance make it suitable for medical devices, data acquisition systems, and sensor amplifiers. Additionally, the LF351N is used in feedback and linear circuits for its stability and performance in low-frequency applications.

Equivalent

The LF351N operational amplifier has several equivalent products, including the TL071, TL081, and LM358. These alternatives may offer similar performance characteristics, but it's essential to check specific parameters like supply voltage, bandwidth, and input/output specifications to ensure compatibility for your application.