OPA404BG

Product Overview

Category

OPA404BG belongs to the category of integrated operational amplifiers (op-amps).

Use

The OPA404BG op-amp is commonly used in various electronic circuits for amplification, filtering, and signal conditioning purposes.

Characteristics

• High gain: The OPA404BG offers a high voltage gain, making it suitable for applications requiring precise amplification.
• Low noise: It exhibits low noise characteristics, ensuring accurate signal processing.
• Wide bandwidth: With a wide bandwidth range, the OPA404BG can handle high-frequency signals effectively.
• Low power consumption: This op-amp consumes minimal power, making it energy-efficient.
• Rail-to-rail input/output: It supports rail-to-rail input and output voltage ranges, allowing for maximum signal swing.

Package

The OPA404BG is available in a compact dual-inline package (DIP) or surface mount package (SMD), which ensures easy integration into circuit boards.

Essence

The essence of the OPA404BG lies in its ability to provide high-performance amplification and signal conditioning in a small form factor.

Packaging/Quantity

The OPA404BG is typically packaged in reels or tubes, with each reel containing 2500 units or each tube containing 50 units.

Specifications

• Supply voltage: ±2.5V to ±18V
• Input offset voltage: ±1mV
• Input bias current: 10nA
• Gain bandwidth product: 10MHz
• Slew rate: 5V/µs
• Output current: 20mA
• Operating temperature range: -40°C to +125°C

Detailed Pin Configuration

The OPA404BG has a standard pin configuration with eight pins:

1. V+ (Positive supply voltage)
2. V- (Negative supply voltage)
3. IN- (Inverting input)
4. IN+ (Non-inverting input)
5. OUT (Output)
6. NC (No connection)
7. NC (No connection)
8. VCC (Supply voltage)

Functional Features

• High gain amplification: The OPA404BG provides a high voltage gain, allowing for accurate signal amplification.
• Low distortion: It ensures minimal distortion in the amplified output signal.
• Stable operation: The op-amp maintains stability even under varying load conditions.
• Wide input/output voltage range: It supports a wide range of input and output voltages, enabling compatibility with various circuit configurations.

Advantages and Disadvantages

Advantages

• High gain and low noise characteristics ensure precise signal amplification.
• Compact package size facilitates easy integration into electronic circuits.
• Wide bandwidth allows for effective handling of high-frequency signals.
• Low power consumption makes it energy-efficient.

Disadvantages

• Limited output current may restrict its use in certain applications requiring higher current capabilities.
• Input offset voltage may introduce slight inaccuracies in signal processing.

Working Principles

The OPA404BG operates based on the principles of differential amplification. It amplifies the voltage difference between the non-inverting and inverting inputs, producing an amplified output signal. The internal circuitry of the op-amp ensures stability, high gain, and low distortion.

Detailed Application Field Plans

The OPA404BG finds application in various fields, including:

1. Audio amplification: It can be used in audio amplifiers to enhance the sound quality and provide sufficient gain for speakers.
2. Sensor signal conditioning: The op-amp is suitable for conditioning weak sensor signals, ensuring accurate measurement and processing.
3. Active filters: It can be employed in active filter circuits to achieve precise frequency response characteristics.
4. Instrumentation amplifiers: The OPA404BG is commonly used in instrumentation amplifiers for accurate measurement and signal conditioning.

Detailed and Complete Alternative Models

1. OPA4134: This op-amp offers similar characteristics to the OPA404BG, with a higher gain bandwidth product of 20MHz.
2. LM324: A widely used op-amp with lower performance specifications but available at a lower cost.
3. AD8628: This op-amp provides ultra-low noise characteristics, making it suitable for high-fidelity audio applications.

These alternative models can be considered based on specific application requirements and budget constraints.

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