LMV821DBVRG4

Product Overview

Category: Integrated Circuit (IC)

Use: LMV821DBVRG4 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 voltage signal processing circuits.

Characteristics: The LMV821DBVRG4 offers rail-to-rail input and output operation, making it suitable for applications requiring a wide dynamic range. It operates from a single supply voltage as low as 1.8V, making it ideal for battery-powered devices. The IC has a low quiescent current of only 45µA, enabling power-efficient designs.

Package: LMV821DBVRG4 is available in a small SOT-23 package, which is compact and easy to integrate into space-constrained designs.

Essence: The essence of LMV821DBVRG4 lies in its ability to provide high-performance amplification with low power consumption and wide operating voltage range.

Packaging/Quantity: LMV821DBVRG4 is typically sold in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Input Offset Voltage: ±1.5mV (maximum)
• Gain Bandwidth Product: 2.7MHz (typical)
• Input Bias Current: 10nA (typical)
• Output Current: 30mA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LMV821DBVRG4 IC has the following pin configuration:

___________ V+ | | V- --| |-- IN+ | | OUT --| |-- IN- |___________|

Functional Features

• Rail-to-rail input and output operation
• Low quiescent current for power-efficient designs
• Wide supply voltage range for compatibility with various systems
• High gain bandwidth product for accurate signal amplification
• Low input bias current for minimal signal distortion

Advantages

• Suitable for low voltage applications
• Compact package for space-constrained designs
• Wide operating temperature range for versatility
• Low power consumption for extended battery life
• High-performance amplification with minimal signal distortion

Disadvantages

• Limited output current compared to higher power operational amplifiers
• Lower gain bandwidth product compared to specialized amplifiers for specific applications

Working Principles

The LMV821DBVRG4 operates as a voltage amplifier, taking an input signal and amplifying it to a higher level. It utilizes a differential input stage followed by a gain stage and an output buffer. The rail-to-rail input and output operation allows the IC to handle signals that span the entire supply voltage range.

Detailed Application Field Plans

LMV821DBVRG4 can be used in various applications, including:

1. Audio amplification in portable devices such as smartphones and tablets.
2. Sensor signal conditioning in IoT devices and industrial automation systems.
3. Signal amplification in medical devices like hearing aids and patient monitoring equipment.
4. Voltage level shifting in communication systems and data acquisition modules.

Alternative Models

1. LMV822DBVRG4: Dual operational amplifier with similar specifications and features.
2. LMV824DBVRG4: Quad operational amplifier offering additional channels for multi-channel applications.
3. TLV2374IDR: Operational amplifier with higher gain bandwidth product and output current capability.

These alternative models provide options based on specific requirements and system constraints.

In conclusion, LMV821DBVRG4 is a versatile operational amplifier suitable for low voltage applications. Its compact package, low power consumption, and wide operating voltage range make it an ideal choice for various signal processing circuits.