LMV981IRUGRG4

Product Overview

Category: Integrated Circuit (IC)

Use: The LMV981IRUGRG4 is a low-voltage, low-power operational amplifier designed for general-purpose applications. It is commonly used in audio amplification, sensor signal conditioning, and other low-power analog signal processing circuits.

Characteristics: - Low voltage operation: The LMV981IRUGRG4 operates at a supply voltage as low as 1.8V, making it suitable for battery-powered devices. - Low power consumption: With a quiescent current of only 20µA, the LMV981IRUGRG4 helps conserve energy in portable applications. - Rail-to-rail input and output: This operational amplifier can handle signals that swing close to the supply rails, allowing for maximum dynamic range. - Small package size: The LMV981IRUGRG4 comes in a small 8-pin VSSOP package, making it ideal for space-constrained designs. - High gain bandwidth product: With a gain bandwidth product of 10MHz, this IC can accurately amplify high-frequency signals.

Package and Quantity: The LMV981IRUGRG4 is available in a reel packaging with 2500 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Input Offset Voltage: ±1mV (maximum)
• Input Bias Current: 1pA (typical)
• Output Current: 30mA (typical)
• Slew Rate: 2.7V/µs (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LMV981IRUGRG4 has the following pin configuration:

___________ OUT | 1 8 | VCC IN- | 2 7 | IN+ IN+ | 3 6 | NC VSS | 4 5 | NC ‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Low input offset voltage: The LMV981IRUGRG4 exhibits minimal voltage difference between its inverting and non-inverting inputs, ensuring accurate signal amplification.
• Rail-to-rail input and output: This feature allows the operational amplifier to handle signals that extend from the lowest to the highest supply voltages.
• Low power consumption: With a low quiescent current, the LMV981IRUGRG4 minimizes power consumption, making it suitable for battery-powered devices.
• High gain bandwidth product: The IC can amplify high-frequency signals with minimal distortion, making it suitable for audio and other high-speed applications.

Advantages and Disadvantages

Advantages: - Low voltage operation enables use in battery-powered devices. - Rail-to-rail input and output capability provides maximum dynamic range. - Small package size allows for space-efficient designs. - Low power consumption helps conserve energy. - High gain bandwidth product ensures accurate amplification of high-frequency signals.

Disadvantages: - Limited output current may not be suitable for driving heavy loads. - Limited pin configuration options restrict flexibility in circuit design.

Working Principles

The LMV981IRUGRG4 is based on a differential amplifier configuration. It amplifies the voltage difference between its inverting and non-inverting inputs by a fixed gain. The rail-to-rail input and output stages allow the amplifier to handle signals that swing close to the supply rails without distortion. By providing a low-voltage, low-power solution, the LMV981IRUGRG4 meets the requirements of various portable and low-power applications.

Application Field Plans

The LMV981IRUGRG4 can be used in a wide range of applications, including: - Audio amplification in portable devices such as smartphones and MP3 players. - Sensor signal conditioning for accurate measurement and monitoring systems. - Battery-powered instrumentation and data acquisition systems. - Low-power analog signal processing circuits in IoT devices. - Signal amplification in medical devices and wearable technology.

Alternative Models

• LMV321: Single operational amplifier with similar characteristics but in a different package.
• LMV358: Dual operational amplifier with rail-to-rail input and output capability.
• LMV324: Quad operational amplifier with low voltage operation and low power consumption.

These alternative models offer similar functionality to the LMV981IRUGRG4 and can be considered based on specific design requirements.

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