JRC4558D

The JRC4558D is a dual operational amplifier (op-amp) IC from New Japan Radio (NJR). It features low noise, high gain bandwidth (3 MHz), and a high slew rate (1.5 V/µs), making it suitable for audio and signal processing applications.
Key specifications:
- Supply Voltage: ±4V to ±18V (dual) or 8V to 36V (single).
- Input Offset Voltage: 1 mV (typ).
- Low Noise: 5 nV/√Hz (typ).
- Package: DIP-8 or SOIC-8.
Commonly used in audio preamps, filters, and analog circuits, the JRC4558D is a cost-effective alternative to the NE5532 and LM1458. It offers stable performance with minimal external components.
Note: While similar to the RC4558, the JRC4558D is NJR’s version with optimized characteristics.
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The JRC4558D is a dual operational amplifier. Equivalent alternatives include:
- Texas Instruments (TI): NE5532, RC4558
- STMicroelectronics: LM4558, MC4558
- ON Semiconductor: NJM4558, LM4558
- Rohm: BA4558
These chips offer similar specs (e.g., bandwidth, slew rate) and pin compatibility. The NE5532 provides better noise performance but may cost more. Always verify datasheets for exact compatibility.

The JRC4558D is a dual operational amplifier (op-amp) IC with 8 pins in a DIP (Dual In-line Package).
Pin Functions:
1. Output A (Pin 1) – Output of Op-Amp A
2. Inverting Input A (Pin 2) – (-) input for Op-Amp A
3. Non-Inverting Input A (Pin 3) – (+) input for Op-Amp A
4. V- (Pin 4) – Negative power supply (or GND in single-supply)
5. Non-Inverting Input B (Pin 5) – (+) input for Op-Amp B
6. Inverting Input B (Pin 6) – (-) input for Op-Amp B
7. Output B (Pin 7) – Output of Op-Amp B
8. V+ (Pin 8) – Positive power supply
It operates on ±18V (dual supply) or up to 36V (single supply) and is commonly used in audio, filters, and signal conditioning.

The JRC4558D is manufactured by New Japan Radio (NJR), a Japanese semiconductor company specializing in analog and mixed-signal ICs. NJR, founded in 1959, is known for producing high-quality operational amplifiers, audio ICs, and other analog components. The company serves industries like consumer electronics, automotive, and industrial applications. The JRC4558D is a widely used dual op-amp known for its reliability in audio circuits. NJR is a subsidiary of Nisshinbo Holdings Inc., a larger Japanese conglomerate.

The JRC4558D is a dual operational amplifier (op-amp) commonly used in:
1. Audio Equipment – Preamplifiers, tone control circuits, and mixers.
2. Signal Processing – Active filters, integrators, and voltage followers.
3. Industrial Control – Sensor signal conditioning and instrumentation amplifiers.
4. Consumer Electronics – Audio amplifiers, equalizers, and effects pedals.
5. Medical Devices – Low-frequency signal amplification in diagnostic equipment.
Its low noise, wide bandwidth, and stable performance make it suitable for analog signal applications.

The JRC4558D is typically available in a DIP-8 (Dual In-line Package) or SOIC-8 (Small Outline Integrated Circuit) package. These are common through-hole and surface-mount options, respectively, for dual operational amplifiers. The DIP-8 is widely used in prototyping, while the SOIC-8 suits compact PCB designs. Check datasheets for exact dimensions and pinouts.