KA4558DTF

Overview

The KA4558DTF is a monolithic integrated circuit containing dual operational amplifiers manufactured by onsemi. It utilizes an 8-SOIC surface-mount package. The device supports a maximum supply voltage span of 44 V and operates within a commercial temperature range of 0°C to 70°C. It features a typical slew rate of 1.2 V/µs. This component is classified as a standard general-purpose operational amplifier designed for versatile linear applications.

Feature Summary

• Monolithic dual operational amplifier configuration
• General-purpose linear signal processing capability
• Surface-mount 8-SOIC packaging

Applications

• General usage analog circuits
• Signal conditioning systems
• Audio pre-amplification stages

Procurement Notes

Verify current manufacturing status before procurement planning, as the KA4558DTF is listed as obsolete by major distributors. Confirm availability through authorized channels or identify direct substitutes such as the RC4558DR from Texas Instruments if continued production is required. Ensure the selected replacement matches the original pinout and electrical specifications to maintain system integrity without redesign.

Selection Notes

Select this component for general-purpose dual op-amp applications requiring standard performance metrics. Consider the commercial temperature range limits when designing for harsh environments. Evaluate alternative active components if higher bandwidth or lower noise specifications are necessary for the specific application requirements.

Part Context

This part belongs to the broader category of linear integrated circuits, specifically instrumentation and buffer amplifiers. It represents a legacy product line from onsemi (formerly Fairchild Semiconductor), reflecting historical design standards for dual operational amplifiers in consumer and industrial electronics.

Replacement Considerations

Direct substitute: RC4558DR (Texas Instruments). Verify pin compatibility and electrical equivalence before implementation.