The NJM12904 is a low-noise dual operational amplifier manufactured by New Japan Radio (NJR). It is designed for audio and general-purpose applications where low noise and high performance are required. This amplifier is commonly used in preamplifiers, audio mixers, and other audio processing equipment.

Applications

• Audio preamplifiers
• Audio mixers
• Headphone amplifiers
• Microphone amplifiers
• Active filters

Features

• Low Noise: Minimizes unwanted noise and interference, resulting in a clean and clear audio signal.
• High Gain: Provides sufficient amplification for a wide range of input signals.
• Wide Bandwidth: Supports a wide range of frequencies, ensuring accurate reproduction of audio signals.
• Low Distortion: Minimizes harmonic distortion, preserving the integrity of the audio signal.
• Stable Operation: Reliable performance over a wide range of operating conditions.

Benefits

• Improved Audio Quality: Low noise and distortion result in a cleaner and more accurate audio signal.
• Enhanced Signal Sensitivity: High gain allows for the amplification of weak signals.
• Versatile Application: Suitable for a wide range of audio and general-purpose applications.
• Reliable Performance: Stable operation ensures consistent performance in various environmental conditions.
• Easy to Implement: Simple design for easy integration into existing circuits.

Technical Specifications

The NJM12904 features a typical input noise voltage of 4.5 nV/√Hz and a gain-bandwidth product of 10 MHz. It operates with a supply voltage range of ±3V to ±18V. The operating temperature range is -40°C to +85°C. It is available in a DIP-8 and SOP-8 package.