LMV931MFX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LMV931MFX/NOPB 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 LMV931MFX/NOPB operates from a single supply voltage as low as 1.8V, making it suitable for battery-powered devices. - Low power consumption: With a typical quiescent current of only 25µA, the LMV931MFX/NOPB helps conserve power in portable applications. - Rail-to-rail input and output: This operational amplifier can accept and deliver signals that are close to the supply rails, maximizing the dynamic range of the circuit. - High gain bandwidth product: The LMV931MFX/NOPB offers a gain bandwidth product of 10MHz, enabling it to handle higher frequency signals accurately.

Package: The LMV931MFX/NOPB is available in a small SOT-23-5 package, which provides compactness and ease of integration into various circuit designs.

Essence: The LMV931MFX/NOPB is an essential component in low voltage, low power analog signal processing circuits, providing amplification and signal conditioning capabilities.

Packaging/Quantity: The LMV931MFX/NOPB is typically sold in reels containing 3000 units.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Quiescent Current: 25µA (typical)
• Gain Bandwidth Product: 10MHz (typical)
• Input Offset Voltage: 1mV (maximum)
• Input Bias Current: 1pA (typical)
• Output Voltage Swing: Rail-to-Rail
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LMV931MFX/NOPB has a total of 5 pins arranged as follows:

____ V+ | | ---->| | | | ---->| | V- |____|

Pin Description: - V+: Positive supply voltage - V-: Negative supply voltage - IN+: Non-inverting input - IN-: Inverting input - OUT: Output

Functional Features

1. Low voltage operation allows for compatibility with battery-powered devices.
2. Low power consumption helps extend battery life in portable applications.
3. Rail-to-rail input and output capability enables accurate signal processing near the supply rails.
4. High gain bandwidth product ensures accurate amplification of higher frequency signals.

Advantages and Disadvantages

Advantages: - Suitable for low voltage applications - Low power consumption - Compact package size - Wide operating temperature range

Disadvantages: - Limited output current capability - Single-supply operation only

Working Principles

The LMV931MFX/NOPB is based on a differential amplifier configuration, where the difference between the non-inverting and inverting inputs determines the output voltage. It utilizes internal transistors and feedback mechanisms to amplify and condition the input signal according to the desired gain and characteristics.

Detailed Application Field Plans

The LMV931MFX/NOPB can be used in various applications, including but not limited to: 1. Audio amplification in portable devices such as smartphones and MP3 players. 2. Sensor signal conditioning in IoT devices and industrial automation systems. 3. Signal processing in low-power analog measurement circuits. 4. Active filters and equalizers in audio systems.

Alternative Models

1. LMV321: Single operational amplifier with similar characteristics.
2. LMV358: Dual operational amplifier with similar characteristics.
3. LMV324: Quad operational amplifier with similar characteristics.

These alternative models provide flexibility in choosing the appropriate number of amplifiers for specific applications while maintaining similar performance characteristics to the LMV931MFX/NOPB.

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