BA4558N

Product Overview

• Category: Integrated Circuit (IC)
• Use: Operational Amplifier
• Characteristics: Dual, Low Noise, High Slew Rate
• Package: DIP-8 (Dual In-line Package with 8 pins)
• Essence: The BA4558N is a dual operational amplifier that provides low noise and high slew rate performance. It is commonly used in audio applications.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage: ±3V to ±18V
• Input Offset Voltage: 2mV (maximum)
• Input Bias Current: 200nA (maximum)
• Input Offset Current: 50nA (maximum)
• Gain Bandwidth Product: 10MHz (typical)
• Slew Rate: 5V/µs (typical)
• Common Mode Rejection Ratio: 70dB (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The BA4558N has a standard DIP-8 pin configuration:

``` __ __ 1 | 1 8 | Vcc+ 2 | 2 7 | Output A 3 | 3 6 | Input A- 4 | 4 5 | Input A+

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Functional Features

• Low noise: The BA4558N offers low noise performance, making it suitable for audio applications where noise interference needs to be minimized.
• High slew rate: With a high slew rate of 5V/µs, the operational amplifier can respond quickly to changes in input signals.
• Dual configuration: The IC contains two independent operational amplifiers in a single package, allowing for more compact circuit designs.

Advantages and Disadvantages

Advantages: - Low noise performance - High slew rate - Dual configuration saves space in circuit design

Disadvantages: - Limited supply voltage range (±3V to ±18V) - Relatively low gain bandwidth product compared to some other operational amplifiers

Working Principles

The BA4558N is based on a differential amplifier configuration. It amplifies the difference between the two input voltages and provides an output voltage proportional to this difference. The internal circuitry of the IC ensures low noise and high slew rate characteristics.

Application Field Plans

The BA4558N is commonly used in various audio applications, including:

1. Audio amplifiers
2. Active filters
3. Tone control circuits
4. Mixers
5. Instrumentation amplifiers

Alternative Models

Here are some alternative models that can be considered as replacements for the BA4558N:

1. LM358: Dual operational amplifier with similar characteristics.
2. TL072: Dual JFET-input operational amplifier with higher gain bandwidth product.
3. NE5532: Dual operational amplifier with low noise and high slew rate.

These alternatives offer similar functionality and can be used as substitutes depending on specific requirements.

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