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LF411CN

Name: LF411CN
Rating: 4.7 (12 reviews)

IC OPAMP JFET 1 CIRCUIT 8DIP

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規格

Series	BI-FET II™
Part Status	Obsolete
Base Product Number	LF411
Amplifier Type	J-FET
Number of Circuits	1
Slew Rate	15V/µs
Gain Bandwidth Product	4 MHz
Current - Input Bias	50 pA
Voltage - Input Offset	800 µV
Current - Supply	1.8mA
Voltage - Supply Span (Min)	10 V
Voltage - Supply Span (Max)	36 V
Operating Temperature	0°C ~ 70°C
Mounting Type	Through Hole
Package	8-DIP (0.300", 7.62mm)
Supplier Device Package	8-PDIP
Packaging	Tube

概述

Description

LF411CN is an op-amp integrated circuit from the LF411 family. It’s a JFET-input, low-noise general‑purpose amplifier designed for precision signal conditioning. Key advantages include very high input impedance, low input bias current, and low voltage noise, making it suitable for instrumentation, active filters, DC amplifiers, and audio preamps. The CN suffix denotes a specific packaging variant (an 8-pin IC, common DIP-style). For exact electrical specs (supply range, gain bandwidth, slew rate, input offset voltage, bias current), refer to the LF411CN datasheet.

Features

LF411CN is a high-performance, JFET-input operational amplifier in an 8-pin DIP (CN = commercial temperature range). Key features:
- JFET input with very high input impedance
- Very low input bias current
- Low input offset voltage and drift
- Wide bandwidth and solid slew rate for a JFET op-amp
- Unity-gain stable (stable for closed-loop gains ≥ 1)
- Low-noise performance suitable for instrumentation
- Wide supply voltage range (supports single- or dual-supply operation)
- Internal compensation (stable without external components)
- Moderate power consumption in typical applications
Note: For exact electrical specs (GBW, SR, input offset, bias currents, and supply ranges), consult the official datasheet.

Package

LF411CN uses an 8-pin DIP (Plastic Dual-In-Line Package).

Pinout

- Pin count: 8 pins (DIP-8; also available in other packages).
- Function: LF411CN is a high-speed, low-noise JFET-input operational amplifier. Pinout (typical): 1 = offset null, 2 = inverting input, 3 = non-inverting input, 4 = V−, 5 = offset null, 6 = output, 7 = V+, 8 = no connect.

Manufacturer

LF411CN is manufactured by Texas Instruments (the line originated with National Semiconductor, which TI acquired). National Semiconductor was an American semiconductor company specializing in analog ICs; Texas Instruments is a US multinational that designs and manufactures semiconductors and related electronics.

Application

- High-speed, low-noise amplification
- Active filters (low-pass, high-pass, band-pass)
- Fast integrators/differentiators and pulse shaping
- Instrumentation and data-acquisition front-ends
- Voltage followers/buffer stages for analog signal conditioning and control loops

Equivalent

LF411CN is a dual low-noise JFET-input op-amp. Common equivalents: TL072/TL072CN (Texas Instruments) and LF353/LF353N (National). They’re widely used as drop-in substitutes in DIP-8; always verify pinout and supply requirements for your circuit.