LMV821IDBVTG4

Product Overview

Category: Integrated Circuit (IC)

Use: LMV821IDBVTG4 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 LMV821IDBVTG4 operates from a single supply voltage as low as 1.8V, making it suitable for battery-powered applications. - Low power consumption: With a typical quiescent current of only 20µA, the LMV821IDBVTG4 helps conserve energy in portable devices. - Rail-to-rail input and output: This operational amplifier can accept and deliver signals that span the entire supply voltage range, maximizing dynamic range and minimizing distortion. - Small package: The LMV821IDBVTG4 comes in a SOT-23-5 package, which is compact and space-saving. - High gain bandwidth product: With a gain bandwidth product of 3 MHz, this IC can handle a wide range of signal frequencies.

Package/Quantity: The LMV821IDBVTG4 is available in a SOT-23-5 package. Each package contains one LMV821IDBVTG4 IC.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Input Offset Voltage: ±1.5mV (maximum)
• Input Bias Current: ±0.2pA (typical)
• Gain Bandwidth Product: 3 MHz (typical)
• Quiescent Current: 20µA (typical)
• Output Voltage Swing: Rail-to-Rail
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LMV821IDBVTG4 has the following pin configuration:

___________ V+ | 1 5 | Output IN-| 2 4 | V- IN+| 3 | |__________|

Functional Features

• Low voltage operation allows for compatibility with a wide range of power supplies.
• Rail-to-rail input and output capability ensures maximum signal handling capability.
• Low power consumption extends battery life in portable applications.
• High gain bandwidth product enables accurate amplification of high-frequency signals.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for versatile use in various applications. - Small package size saves board space. - Low quiescent current helps conserve energy. - Rail-to-rail input and output capability maximizes signal handling.

Disadvantages: - Limited output current capability may not be suitable for driving heavy loads. - Single-channel design limits multi-channel applications.

Working Principles

The LMV821IDBVTG4 is based on a differential amplifier architecture. It uses a combination of transistors, resistors, and capacitors to amplify and process analog signals. The operational amplifier's internal circuitry provides high gain, low distortion, and low noise characteristics.

Detailed Application Field Plans

The LMV821IDBVTG4 can be used in various applications, including: 1. Audio amplification: The IC can be used to amplify audio signals in portable devices such as smartphones, tablets, and MP3 players. 2. Sensor signal conditioning: It can be employed to condition signals from sensors like temperature sensors, pressure sensors, and light sensors. 3. Battery-powered systems: The low voltage operation and low power consumption make it suitable for battery-powered applications, such as wearable devices and remote sensors. 4. Signal processing circuits: The LMV821IDBVTG4 can be used in low-power analog signal processing circuits, such as filters and amplifiers.

Detailed and Complete Alternative Models

1. LMV321: This is a single-channel operational amplifier with similar characteristics to the LMV821IDBVTG4.
2. LMV358: A dual-channel operational amplifier that offers two independent amplification channels.
3. LMV324: A quad-channel operational amplifier providing four independent amplification channels.

These alternative models offer similar functionality and can be considered as substitutes for the LMV821IDBVTG4 depending on specific application requirements.

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