The 4558D (also known as NJM4558D / JRC4558) is a dual operational amplifier consisting of two internally compensated, high-gain op-amps integrated on a single silicon die.
Part Number: JRC4558, NJM4558D
Function: DUAL OPERATIONAL AMPLIFIER
Package: DIP 8 Pin Type
Manufacturer: Japan Radio Corporation
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Description
The 4558D, NJM4559 integrated circuit is a dual high-gain operational amplifier
Combining the features of the NJM741 with the close parameter matching and tracking of a dual device on a monolithic chip results in unique performance characteristics. Excellent channel separation allows the use of the dual device in single NJM741 operational amplifier applications providing density. It is especially well suited for applications in differential-in, differential-out as well as in potentiometric amplifiers and where gain and phase matched channels are mandatory.
Features
- Wide operating supply range: ±4V to ±18V
- High open-loop voltage gain (~100 dB typical)
- High input resistance (~5 MΩ typical)
- Good channel separation and matching
- Bipolar input stage (better noise than early general-purpose op-amps)
- Stable without external compensation
- Available in standard DIP and SOP packages
Pin Configuration (8-Pin Dual Op-Amp)
- Pin 1: Output 1
- Pin 2: Inverting Input 1 (-)
- Pin 3: Non-inverting Input 1 (+)
- Pin 4: V– (Negative supply or GND)
- Pin 5: Non-inverting Input 2 (+)
- Pin 6: Inverting Input 2 (-)
- Pin 7: Output 2
- Pin 8: V+ (Positive supply)
Key Electrical Characteristics (Typical)
- Open-loop gain: ~100 dB
- Input bias current: ~200 nA
- Input offset voltage: ~1–5 mV
- Slew rate: ~1 V/µs
- Gain-bandwidth product: ~3 MHz
Typical Circuit Usage
- Audio preamplifiers and tone control circuits
- Active filters (low-pass, high-pass, band-pass)
- Signal conditioning and buffering
- Differential amplifier stages
- Integrator and comparator (non-critical timing)
How to Choose This Part
- Use when moderate performance and low cost are priorities
- Ideal for audio-frequency applications (<100kHz)
- Suitable when dual op-amp matching is required
- Not recommended for precision low-offset or rail-to-rail designs
- Consider modern CMOS op-amps for low-power or high-speed needs
Applications
- Audio amplifiers and mixers
- Instrumentation and signal processing
- Industrial analog control circuits
- Consumer electronics
- General-purpose analog design
Alternative / Equivalent Products
- LM358 (single-supply, lower power alternative)
- TL072 (JFET input, lower noise for audio)
- NE5532 (high-performance audio op-amp)
- OPA2134 (audiophile-grade op-amp)
- MC1458 (older equivalent dual op-amp)
Other data sheets are available within the file: JRC4558, JRC4559, NJM4558M, NJM4558L, NJM4558V
4558D Datasheet PDF Download
