NJM4558L

Instrumentation, Op Amps, Buffer Amps Overview

The NJM4558L is a dual high-gain operational amplifier constructed on a single silicon chip using bipolar technology. It features internal compensation and SIP-8 packaging. Key electrical parameters include an operating voltage range of ±4V to ±18V, a typical large signal voltage gain of 100dB, and a typical input bias current of 25nA. The device exhibits a typical equivalent input noise voltage of 1.4μVrms and a gain bandwidth product of 3MHz. Operating current is typically 3.5mA with a slew rate of 1V/μs.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Dual high-gain operational amplifier with internal compensation circuit
• Excellent channel separation characteristics suitable for measuring instruments
• High input resistance of 5MΩ typ.
• Bipolar technology construction

Instrumentation, Op Amps, Buffer Amps Applications

• Measuring instruments
• Audio pre-amplification circuits
• General-purpose analog signal processing

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the NRND status before finalizing designs, as this indicates the component is not recommended for new designs. Confirm the specific SIP-8 package variant matches the target PCB footprint. Ensure supply chain stability is assessed due to potential end-of-life implications associated with the notification status.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high channel separation and low input bias current are required in a through-hole SIP-8 package. Compare against DIP or SMD variants if board space constraints differ. Verify that the ±4V to ±18V supply range meets system requirements and that the 100dB gain is sufficient for the application.

Instrumentation, Op Amps, Buffer Amps Part Context

The NJM4558L belongs to the NJM4558 series of dual operational amplifiers manufactured by Nisshinbo Micro Devices. This series includes various package options such as DIP, SOP, SSOP, and DMP. The L suffix specifically denotes the SIP-8 package configuration, distinguishing it from other form factors within the same functional family.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

• NJM4558D (DIP-8 package)
• NJM4558M (DMP-8 package)
• NJM4558V (SSOP-8 package)

Instrumentation, Op Amps, Buffer Amps FAQ

Is the NJM4558L recommended for new designs?

No, the datasheet explicitly states that the NJM4558L is an NRND (Not Recommended for New Designs) product.

What is the typical input offset voltage for the NJM4558L?

The typical input offset voltage is 0.5mV, with a maximum of 6mV under standard test conditions.