LF444CMX

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LF444CMX

+Nomenclature

  • FabricantTexas Instruments

  • Pièce fabricant #LF444CMX

  • En stock5890

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Spécifications

Attribut Valeur
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Obsolete
Amplifier Type J-FET
Number of Circuits 4
Slew Rate 1V/µs
Gain Bandwidth Product 1 MHz
Current - Input Bias 10 pA
Voltage - Input Offset 3 mV
Supply Current 600µA (x4 Channels)
Current - Output / Channel 14 mA
Voltage - Supply Span(Min) 36 V
Voltage - Supply Span(Max) 36 V
Operating Temperature 0°C ~ 70°C
Mounting Type Surface Mount

Présentation

Description

The LF444CMX is a member of the LF444 series of JFET-input operational amplifiers, known for their low power consumption and high input impedance. These op-amps are ideal for applications requiring precise performance with minimal power draw, such as battery-operated devices. The "CMX" suffix typically denotes a specific package type and temperature range. The LF444CMX offers features like low input bias current, low input offset voltage, and wide bandwidth, making it suitable for precision amplification tasks. Its high slew rate and low distortion also make it useful in audio and signal processing applications. The component's robust performance, combined with its efficiency, facilitates its use in portable instrumentation and sensor interfaces. The LF444CMX operates across a range of supply voltages, enhancing its versatility for different circuit designs. Overall, the LF444CMX is valued for its balance of performance and power efficiency.

Equivalent

The LF444CMX is a low-power quad operational amplifier. Equivalent products include the TL074 series from Texas Instruments, the LM324 series from STMicroelectronics, and the MC33074 series from ON Semiconductor. These alternatives offer similar low power consumption, quad op-amp configurations, and generally compatible pin layouts. When selecting an equivalent, check specific parameters like bandwidth, slew rate, and supply voltage to ensure compatibility with your application.

Features

The LF444CMX is a low-power quad operational amplifier known for its efficiency in battery-powered applications. Key features include:
1. Low Power Consumption: It has a supply current of only 0.8 mA, making it ideal for energy-sensitive applications.

2. Wide Supply Voltage Range: The device operates with a wide supply voltage range from ±3V to ±18V, providing flexibility in various circuits.
3. Low Input Bias Current: The LF444CMX offers a low input bias current of 50 pA, which is beneficial in high-impedance sensor interfaces.
4. Low Input Offset Voltage: It features a low input offset voltage of about 3 mV, ensuring accurate and reliable signal amplification.
5. High Input Impedance: With a high input impedance of around 10^12 ohms, it minimizes the loading effect on preceding circuit stages.
6. Unity-Gain Bandwidth: Offers a unity-gain bandwidth of approximately 1 MHz, which is suitable for a wide range of signal processing tasks.
7. Low Noise Operation: Designed to operate with minimal noise, making it suitable for precision applications.
These features make the LF444CMX suitable for analog signal processing, active filters, and other precision applications.

Pinout

The LF444CMX is a quad operational amplifier IC, which means it contains four independent op-amps within a single package. It typically comes in a 14-pin surface-mount package. The main functions of the LF444CMX include amplifying voltage signals and performing mathematical operations such as addition, subtraction, integration, and differentiation in analog circuits. Here is a brief summary of its pin configuration:
1. Pins 1 & 14: Output of op-amp 1 and op-amp 4
2. Pins 2, 3, 5, 6, 8, 9, 11, & 12: Inverting and non-inverting inputs for each of the four op-amps
3. Pin 4: V- (negative power supply)
4. Pin 7: V+ (positive power supply)
5. Pin 13: Output of op-amp 3
The LF444CMX is known for its low power consumption and high input impedance, making it suitable for battery-powered applications and precision analog circuits.

Manufacturer

The LF444CMX is manufactured by Texas Instruments, a well-known American technology company. Texas Instruments designs and produces semiconductors and various integrated circuits, which are used in a wide range of electronic devices. The company is a major player in the electronics industry, providing components for sectors such as consumer electronics, automotive, industrial automation, telecommunications, and more. Texas Instruments is recognized for its innovations and contributions to the development of technology, particularly in analog and embedded processing, which includes products like amplifiers, data converters, and microcontrollers.

Application

The LF444CMX is a low-power quad operational amplifier used in various applications. Key areas include:
1. Signal Conditioning: Ideal for amplifying low-level signals in sensor interfaces due to its low input bias current.
2. Active Filters: Suitable for creating active filters in audio and communication systems.
3. Data Acquisition: Used in data acquisition systems for amplifying and conditioning signals before digital conversion.
4. Biomedical Instruments: Fits applications in medical devices where precision and low power consumption are crucial.
5. Portable Devices: Its low power consumption makes it suitable for battery-operated devices.
6. Analog Computing: Utilized in analog computing and signal processing applications.
The LF444CMX's versatility and efficiency make it a popular choice in these areas.

Package

The LF444CMX is a quad operational amplifier available in a surface-mount package type, specifically the SOIC (Small Outline Integrated Circuit) package.