NJM2068D

Product Overview

• Category: Integrated Circuit (IC)
• Use: Operational Amplifier
• Characteristics: Low noise, high gain, low power consumption
• Package: Dual in-line package (DIP)
• Essence: High-performance audio amplifier
• Packaging/Quantity: Available in reels of 2,500 units

Specifications

• Supply Voltage: ±2V to ±18V
• Input Offset Voltage: 1.5mV (max)
• Input Bias Current: 50nA (max)
• Gain Bandwidth Product: 3MHz (typ)
• Slew Rate: 1.3V/µs (typ)
• Output Current: 20mA (min)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The NJM2068D has a total of 8 pins arranged as follows:

```

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

Functional Features

• Low noise and distortion for high-quality audio applications
• Wide supply voltage range allows flexibility in various systems
• High gain enables amplification of weak signals
• Low power consumption for energy-efficient designs
• Stable operation over a wide temperature range

Advantages and Disadvantages

Advantages: - Excellent audio performance with low noise and distortion - Versatile supply voltage range for compatibility with different systems - Low power consumption extends battery life in portable devices

Disadvantages: - Limited output current may not be suitable for driving heavy loads - Relatively low gain bandwidth product restricts high-frequency applications

Working Principles

The NJM2068D is an operational amplifier designed to amplify small electrical signals, particularly in audio applications. It operates by taking the difference between the voltages at its inverting (-) and non-inverting (+) inputs and amplifying this difference to produce an output voltage. The amplifier's internal circuitry ensures that the amplified signal faithfully reproduces the input signal with minimal distortion and noise.

Detailed Application Field Plans

The NJM2068D finds application in various fields, including:

1. Audio Amplification: Used in audio equipment such as amplifiers, mixers, and preamplifiers to enhance weak audio signals.
2. Active Filters: Employed in active filter circuits to shape the frequency response of audio signals.
3. Instrumentation: Utilized in precision measurement instruments to amplify and condition sensor signals.
4. Communications: Applied in communication systems for signal conditioning and amplification.

Detailed and Complete Alternative Models

1. LM358: Dual operational amplifier with similar characteristics and pin configuration.
2. TL072: Low-noise JFET-input operational amplifier offering enhanced performance.
3. NE5532: High-performance audio operational amplifier with extended temperature range.

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

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