NJR Corporation/NJRC
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NJM2068M
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NJM2068M

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Audio Amplifier
  • Characteristics: Low Noise, High Slew Rate, Wide Bandwidth
  • Package: DIP-8, SOP-8
  • Essence: Operational Amplifier
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Supply Voltage: ±2V to ±18V
  • Input Offset Voltage: 1.5mV (max)
  • Input Bias Current: 50nA (max)
  • Slew Rate: 13V/µs (typ)
  • Gain Bandwidth Product: 10MHz (typ)
  • Input Common Mode Voltage Range: V- - 1.5V to V+ - 1.5V
  • Output Voltage Swing: V- + 0.3V to V+ - 0.3V
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The NJM2068M has a standard pin configuration with the following connections:

  1. Non-Inverting Input (+IN)
  2. Inverting Input (-IN)
  3. Negative Power Supply (V-)
  4. Positive Power Supply (V+)
  5. Output (OUT)
  6. Compensation Capacitor (CC)
  7. Nulling Resistor (NR)
  8. Ground (GND)

Functional Features

  • Low noise and distortion for high-quality audio applications.
  • High slew rate enables fast signal amplification.
  • Wide bandwidth allows accurate reproduction of high-frequency signals.
  • Stable operation over a wide range of supply voltages.
  • Internal compensation capacitor for improved stability.
  • Nulling resistor for offset voltage adjustment.

Advantages and Disadvantages

Advantages: - Low noise performance ensures high-fidelity audio amplification. - High slew rate enables accurate reproduction of fast-changing signals. - Wide bandwidth allows faithful reproduction of high-frequency content. - Stable operation over a wide range of supply voltages enhances versatility.

Disadvantages: - Limited output voltage swing may restrict use in certain applications. - Requires external compensation capacitor for optimal stability.

Working Principles

The NJM2068M is an operational amplifier designed to amplify audio signals with low noise and distortion. It operates by amplifying the voltage difference between its non-inverting and inverting inputs. The amplified signal is then available at the output pin. The internal compensation capacitor and nulling resistor contribute to stability and offset voltage adjustment, respectively.

Detailed Application Field Plans

The NJM2068M is commonly used in various audio applications, including:

  1. Hi-Fi audio systems
  2. Professional audio equipment
  3. Musical instruments
  4. Audio mixers
  5. Headphone amplifiers

Detailed and Complete Alternative Models

  1. LM833: Dual Operational Amplifier
  2. NE5532: Dual Low-Noise Operational Amplifier
  3. TL072: Dual JFET Input Operational Amplifier
  4. OPA2134: Dual Audio Operational Amplifier
  5. AD827: Dual Low-Noise, High-Speed Amplifier

These alternative models offer similar functionality and can be considered as substitutes for the NJM2068M in various audio applications.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением NJM2068M в технических решениях.

Sure! Here are 10 common questions and answers related to the application of NJM2068M in technical solutions:

  1. Q: What is NJM2068M? A: NJM2068M is a dual operational amplifier (op-amp) integrated circuit commonly used in various electronic applications.

  2. Q: What are the key features of NJM2068M? A: Some key features of NJM2068M include low noise, low input bias current, wide bandwidth, low offset voltage, and low power consumption.

  3. Q: What are the typical applications of NJM2068M? A: NJM2068M is often used in audio amplifiers, active filters, instrumentation amplifiers, signal conditioning circuits, and other precision analog applications.

  4. Q: What is the supply voltage range for NJM2068M? A: The supply voltage range for NJM2068M is typically between ±2V and ±18V.

  5. Q: What is the maximum output current of NJM2068M? A: The maximum output current of NJM2068M is typically around 20mA.

  6. Q: Can NJM2068M operate with a single power supply? A: Yes, NJM2068M can operate with a single power supply as long as it is within the specified voltage range.

  7. Q: What is the input impedance of NJM2068M? A: The input impedance of NJM2068M is typically very high, in the order of several megaohms.

  8. Q: Does NJM2068M require external compensation? A: No, NJM2068M does not require external compensation as it is internally compensated for stability.

  9. Q: Can NJM2068M drive capacitive loads? A: Yes, NJM2068M can drive capacitive loads, but it is recommended to add a small series resistor to improve stability.

  10. Q: Is NJM2068M suitable for low-power applications? A: Yes, NJM2068M is suitable for low-power applications due to its low power consumption and ability to operate at lower supply voltages.

Please note that the answers provided are general and may vary depending on specific datasheet specifications and application requirements.