LMV821M5/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: The LMV821M5/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 voltage signal processing circuits.

Characteristics: - Low voltage operation: The LMV821M5/NOPB operates at a supply voltage as low as 1.8V, making it suitable for battery-powered devices. - Low power consumption: With a quiescent current of only 20µA, the LMV821M5/NOPB helps to extend battery life in portable applications. - Rail-to-rail input and output: This operational amplifier can accept and deliver signals close to the supply rails, allowing for maximum dynamic range. - Small package size: The LMV821M5/NOPB is available in a miniature SOT-23-5 package, which is ideal for space-constrained designs. - High gain bandwidth product: With a gain bandwidth product of 3 MHz, this IC can handle a wide range of signal frequencies.

Package and Quantity: The LMV821M5/NOPB is supplied in a SOT-23-5 package. Each package contains one LMV821M5/NOPB IC.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Quiescent Current: 20µA
• Gain Bandwidth Product: 3 MHz
• Input Offset Voltage: ±2 mV
• Input Bias Current: ±0.5 nA
• Output Voltage Swing: Rail-to-Rail
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LMV821M5/NOPB has a total of five pins arranged as follows:

___________ V+ --| |-- OUT IN- --| LMV821M5 |-- IN+ GND --|___________|-- NC

Pin Descriptions: - V+: Positive supply voltage pin. - IN-: Inverting input pin. - IN+: Non-inverting input pin. - OUT: Output pin. - GND: Ground pin. - NC: No connection (unused pin).

Functional Features

1. Low Voltage Operation: The LMV821M5/NOPB can operate at supply voltages as low as 1.8V, making it suitable for low power applications and battery-powered devices.
2. Rail-to-Rail Input and Output: This operational amplifier can accept and deliver signals close to the supply rails, allowing for maximum dynamic range and signal fidelity.
3. Low Power Consumption: With a quiescent current of only 20µA, the LMV821M5/NOPB helps to minimize power consumption and extend battery life in portable applications.
4. High Gain Bandwidth Product: The LMV821M5/NOPB has a gain bandwidth product of 3 MHz, enabling it to handle a wide range of signal frequencies accurately.

Advantages and Disadvantages

Advantages: - Low voltage operation extends battery life. - Rail-to-rail input and output allows for maximum signal range. - Small package size is ideal for space-constrained designs. - Low power consumption minimizes energy usage. - High gain bandwidth product enables accurate signal processing.

Disadvantages: - Limited number of pins may restrict complex circuit configurations. - Not suitable for high voltage applications.

Working Principles

The LMV821M5/NOPB is an operational amplifier based on CMOS technology. It utilizes a differential input stage followed by a push-pull output stage to amplify and process input signals. The low voltage operation is achieved through the use of CMOS transistors, which have a lower threshold voltage compared to traditional bipolar transistors.

Application Field Plans

The LMV821M5/NOPB can be used in various applications, including: 1. Audio amplification circuits for portable devices. 2. Sensor signal conditioning circuits in low voltage sensor networks. 3. Battery-powered instrumentation and measurement systems. 4. Low voltage signal processing circuits in consumer electronics.

Alternative Models

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

These alternative models provide different pin configurations and package options while offering similar performance characteristics to the LMV821M5/NOPB.

In conclusion, the LMV821M5/NOPB is a low voltage, low power operational amplifier suitable for general-purpose applications. Its small package size, rail-to-rail input/output capability, and low power consumption make it an ideal choice for battery-powered devices and space-constrained designs.