KA4558I

Overview

The KA4558I is a monolithic integrated circuit designed as a dual operational amplifier. It contains two independent general-purpose amplifiers within a single package, suitable for a wide range of analog signal processing applications. The device features a supply current of 3.5mA and an input bias current of 30nA. It is housed in an 8-DIP package, providing a robust solution for standard electronic designs requiring dual op-amp functionality.

Feature Summary

• Monolithic dual operational amplifier design
• General-purpose application suitability
• Low input bias current specification

Applications

• Analog signal conditioning circuits
• General-purpose voltage amplification
• Audio pre-amplifier stages

Procurement Notes

Verify the specific suffix 'I' to confirm the industrial temperature rating and packaging type. Confirm availability status as some listings indicate this part may be discontinued or obsolete. Ensure the source document explicitly supports the 8-DIP package and electrical parameters before finalizing procurement decisions.

Selection Notes

Select this component when a dual op-amp configuration is required for general-purpose tasks. Consider the 3.5mA supply current and 30nA input bias current against system power and precision requirements. Verify that the 8-DIP package fits the target PCB layout constraints and manufacturing capabilities.

Part Context

The KA4558 series represents a standard dual operational amplifier family widely used in analog electronics. The KA4558I variant specifically denotes the industrial grade version manufactured by onsemi (formerly AMI Semiconductor). It serves as a foundational building block for various linear amplifier circuits.

Replacement Considerations

Check for direct pin-compatible substitutes such as the LM1558 or LM2558 if the KA4558I is unavailable. Ensure replacement parts match the dual op-amp topology and similar electrical characteristics like supply current and input bias.