NJM2257D# - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The NJM2257D# is a versatile operational amplifier designed for various audio applications. It provides high-quality amplification and signal processing capabilities.

Characteristics: - Low noise and distortion - Wide frequency response - High gain bandwidth product - Low power consumption

Package: The NJM2257D# is available in a compact dual-inline package (DIP) with 8 pins.

Essence: This IC is an essential component in audio systems, enabling accurate amplification and signal conditioning.

Packaging/Quantity: The NJM2257D# is typically sold in reels or tubes containing a quantity of 1000 units per package.

Specifications

• Supply Voltage: ±2V to ±18V
• Input Offset Voltage: 1mV (maximum)
• Input Bias Current: 50nA (maximum)
• Gain Bandwidth Product: 10MHz (typical)
• Slew Rate: 5V/µs (typical)
• Output Current: 20mA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The NJM2257D# features the following pin configuration:

```

---

| | --| V+ OUT |-- Pin 1: Positive Power Supply (+V) --| IN(-) IN+ |-- Pin 2: Non-Inverting Input (+IN) --| V- REF |-- Pin 3: Negative Power Supply (-V) --| OUT NC |-- Pin 4: Output --| NC NC |-- Pin 5: Not Connected --| NC NC |-- Pin 6: Not Connected --| NC NC |-- Pin 7: Not Connected --| NC GND |-- Pin 8: Ground (GND) |___________| ```

Functional Features

• Low noise and distortion: The NJM2257D# ensures minimal interference and distortion in audio signals, resulting in high-fidelity sound reproduction.
• Wide frequency response: It can handle a broad range of frequencies, making it suitable for various audio applications.
• High gain bandwidth product: The IC offers a high gain bandwidth product, enabling accurate amplification across a wide frequency range.
• Low power consumption: The NJM2257D# is designed to consume minimal power, making it energy-efficient.

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Low noise and distortion - Wide frequency response - Compact package size

Disadvantages: - Limited output current capability - Requires external power supply

Working Principles

The NJM2257D# operates based on the principles of operational amplifiers. It amplifies input signals while maintaining linearity and low distortion. The IC utilizes internal circuitry to provide accurate amplification and signal conditioning.

Detailed Application Field Plans

The NJM2257D# finds applications in various audio systems, including: 1. Hi-Fi audio amplifiers 2. Audio mixers 3. Musical instruments 4. Public address systems 5. Home theater systems

Detailed and Complete Alternative Models

1. LM358: Dual operational amplifier with similar characteristics and pin configuration.
2. TL072: Low-noise JFET-input operational amplifier suitable for audio applications.
3. NE5532: Dual high-performance audio operational amplifier with low noise and distortion.

These alternative models offer similar functionality and can be used as substitutes for the NJM2257D# in audio applications.

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