LMV821M7

Product Overview

Category: Integrated Circuit (IC)

Use: LMV821M7 is a low voltage, low power operational amplifier designed for general-purpose applications.

Characteristics: - Low voltage operation: 1.8V to 5.5V - Low power consumption: 20µA (typical) - Rail-to-rail input and output - Unity-gain stable - Small package size: SOT-23-5

Package: The LMV821M7 is available in a small SOT-23-5 package, which provides space-saving benefits and ease of integration into various circuit designs.

Essence: The LMV821M7 is an essential component in electronic circuits that require amplification of signals with low power consumption and low voltage operation.

Packaging/Quantity: The LMV821M7 is typically sold in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Input Offset Voltage: ±2mV (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Input Bias Current: 1pA (typical)
• Output Current: 30mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LMV821M7 has a total of five pins arranged as follows:

```

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| | --| IN- OUT |-- --| IN+ V- |-- --| GND V+ |-- --| NC NC |-- |___________| ```

Pin Description: - IN-: Inverting input - OUT: Output - IN+: Non-inverting input - V-: Negative supply voltage - GND: Ground - V+: Positive supply voltage - NC: No connection

Functional Features

1. Low Voltage Operation: The LMV821M7 operates within a wide voltage range of 1.8V to 5.5V, making it suitable for low power applications.
2. Low Power Consumption: With a typical current consumption of only 20µA, the LMV821M7 helps conserve energy in battery-powered devices.
3. Rail-to-Rail Input and Output: The operational amplifier supports input and output signals that can swing close to the supply rails, maximizing dynamic range.
4. Unity-Gain Stable: The LMV821M7 remains stable even at unity gain, ensuring reliable performance across various circuit configurations.
5. Small Package Size: The SOT-23-5 package allows for compact designs and easy integration into space-constrained applications.

Advantages and Disadvantages

Advantages: - Wide operating voltage range - Low power consumption - Rail-to-rail input and output - Small package size for space-saving designs - Unity-gain stability

Disadvantages: - Limited bandwidth compared to higher-end operational amplifiers - Lower output current capability compared to specialized amplifiers

Working Principles

The LMV821M7 is based on a differential amplifier configuration that amplifies the voltage difference between its inputs. It utilizes a combination of transistors and resistors to achieve the desired amplification characteristics. The rail-to-rail input and output stages allow for maximum signal swing, while the low power consumption ensures efficient operation in battery-powered devices.

Detailed Application Field Plans

The LMV821M7 finds application in various fields, including but not limited to: - Portable electronics - Battery-powered devices - Sensor interfaces - Audio amplification circuits - Signal conditioning circuits

Detailed and Complete Alternative Models

1. LMV321: Single operational amplifier with similar specifications and package options.
2. LMV358: Dual operational amplifier with extended functionality and higher output current capability.
3. LMV324: Quad operational amplifier with multiple channels for increased flexibility.

These alternative models offer different features and performance characteristics, allowing designers to choose the most suitable option for their specific application requirements.

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