Description:
The JRC4558D is a dual operational amplifier IC, widely used for general-purpose signal amplification and processing. Produced by the Japan Radio Company, it is known for its reliability and excellent performance in audio circuits, such as guitar pedals and preamplifiers. The “D” in its name typically refers to the 8-pin dual in-line package (DIP).
Key features:
- Dual operational amplifiers: Contains two independent, high-gain, and internally frequency-compensated op-amps on a single chip.
- Audio quality: Features low noise, low distortion, and good audio characteristics, making it a staple in audio equipment.
- High voltage gain: Offers a typical voltage gain of 100 dB.
- Wide supply voltage: Operates on a versatile power supply range, typically ±4V to ±18V.
- High input impedance: Provides a typical input impedance of 5 MΩ.
- Package options: Available in both the through-hole DIP-8 and surface-mount SOP-8 packages.
Pinout:
The JRC4558D comes in an 8-pin package, with the following pin assignments for both DIP and SOP versions:
- Pin 1: Output A
- Pin 2: Inverting Input A
- Pin 3: Non-Inverting Input A
- Pin 4: Negative Voltage Supply (V-)
- Pin 5: Non-Inverting Input B
- Pin 6: Inverting Input B
- Pin 7: Positive Voltage Supply (V+)
- Pin 8: Output B
Common applications:
- Audio circuits: Used in guitar effect pedals (such as the Ibanez Tube Screamer), audio mixers, preamplifiers, and headphone amplifiers.
- Signal processing: General-purpose op-amp operations, including comparators, mathematical operations, and differential amplifiers.
- Industrial control: Used in instrumentation and process control systems for signal conditioning and amplification.
- Automotive: Found in car stereo systems for audio processing and dashboard electronics for signal processing tasks.
Equivalent and alternative components:
The JRC4558D is pin-compatible with and can be replaced by several other components, though performance may vary.
- NJM4558D: A common equivalent manufactured by New Japan Radio (NJR).
- RC4558: Another common equivalent, available from multiple manufacturers like Texas Instruments.
- NE5532: A higher-performance alternative with lower noise and distortion, often used for professional audio applications.
- TL072: A low-power alternative featuring a FET input stage, resulting in higher input impedance.
Package Includes:
1 x JRC4558D Dual Op Amp 4558D












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