LMV358QPWR

Product Overview

Category: Integrated Circuits (ICs)

Use: LMV358QPWR is a low-voltage, dual operational amplifier designed for general-purpose applications. It is commonly used in audio amplification, signal conditioning, and voltage amplification circuits.

Characteristics: - Low voltage operation: LMV358QPWR operates at a supply voltage as low as 2.7V, making it suitable for battery-powered devices. - Rail-to-rail input and output: The operational amplifier can accept input signals that range from the negative rail to the positive rail, and its output can swing close to both supply rails. - Low power consumption: With a typical quiescent current of only 300µA, LMV358QPWR minimizes power consumption, making it ideal for portable and low-power applications. - Small package size: This IC is available in a small-sized package, such as the TSSOP-8, which allows for space-efficient circuit designs.

Package and Quantity: LMV358QPWR is typically packaged in a TSSOP-8 package. Each reel contains 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Offset Voltage: ±1mV (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Slew Rate: 0.6V/µs (typical)
• Input Bias Current: 100nA (maximum)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LMV358QPWR has a total of 8 pins, numbered as follows:

```

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| | --|IN- VCC|-- Pin 1: Positive Power Supply --|IN+ OUT|-- Pin 2: Output --|V- IN+|-- Pin 3: Non-Inverting Input --|OUT IN-|-- Pin 4: Inverting Input --|IN- VCC|-- Pin 5: Positive Power Supply --|IN+ OUT|-- Pin 6: Output --|V- IN+|-- Pin 7: Non-Inverting Input --|OUT IN-|-- Pin 8: Inverting Input |___________| ```

Functional Features

1. Low Voltage Operation: LMV358QPWR can operate at low supply voltages, making it suitable for battery-powered devices.
2. Rail-to-Rail Input and Output: The operational amplifier accepts input signals that span the entire supply voltage range and provides output signals close to the supply rails.
3. Low Power Consumption: With its low quiescent current, LMV358QPWR minimizes power consumption, extending battery life in portable applications.
4. Wide Temperature Range: The IC can operate reliably in a wide temperature range, from -40°C to +125°C.

Advantages and Disadvantages

Advantages: - Low voltage operation allows for compatibility with various power sources. - Rail-to-rail input and output enable maximum signal swing. - Low power consumption extends battery life. - Wide temperature range ensures reliable operation in harsh environments.

Disadvantages: - Limited gain bandwidth product may restrict high-frequency applications. - Single-supply operation limits the output voltage swing.

Working Principles

LMV358QPWR is based on a differential amplifier configuration, which amplifies the voltage difference between its two inputs. It utilizes internal transistors and feedback networks to achieve the desired amplification and signal conditioning characteristics.

Detailed Application Field Plans

The LMV358QPWR finds applications in various fields, including: 1. Audio Amplification: It can be used in audio preamplifiers, headphone amplifiers, and portable audio devices. 2. Signal Conditioning: LMV358QPWR is suitable for sensor signal conditioning circuits, such as temperature sensors and pressure sensors. 3. Voltage Amplification: The IC can amplify low-level voltage signals in applications like data acquisition systems and instrumentation.

Alternative Models

1. LM358P: This is a similar dual operational amplifier with a DIP-8 package.
2. LMV321: A single operational amplifier with similar characteristics, available in a SOT-23 package.
3. TL072: A dual operational amplifier with higher gain bandwidth product and lower input offset voltage.

These alternative models provide similar functionality and can be considered based on specific application requirements.

In conclusion, the LMV358QPWR is a versatile low-voltage operational amplifier that offers rail-to-rail input and output capabilities, low power consumption, and a small package size. Its wide range of applications, along with alternative models, make it a popular choice in various electronic circuits.

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