KA4558D

Overview

The KA4558D is a monolithic integrated circuit designed as a dual operational amplifier by onsemi. It utilizes BiFET technology and is housed in an 8-SOIC package for through-hole or surface-mount installation. The device operates within a supply voltage range of -22 V to +22 V, with a maximum operating temperature of +70 C. Key electrical specifications include a slew rate of 1.2 V/us, an input offset voltage of 6 mV, and an input bias current of 500 nA. It features a common-mode rejection ratio of 70 dB and a power supply rejection ratio of 76 dB, drawing a typical operating supply current of 5.8 mA.

Feature Summary

• Monolithic dual operational amplifier design utilizing BiFET technology
• General-purpose functionality suitable for diverse electronic applications
• Operates without a shutdown feature

Applications

• General-purpose signal amplification circuits
• Audio processing stages
• Industrial control systems requiring dual op-amp configurations

Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm that the 8-SOIC package dimensions match the target PCB footprint. Check for end-of-life status or obsolescence notices from onsemi. Ensure thermal management meets the +70 C maximum junction temperature requirement. Validate that the BiFET input characteristics suit the specific application noise and bias constraints.

Selection Notes

Select this component when a dual op-amp configuration is required in an 8-SOIC package. Consider the BiFET technology for low input bias current needs compared to bipolar alternatives. Evaluate the 1.2 V/us slew rate against signal frequency requirements. Verify that the 6 mV input offset voltage meets system accuracy standards. Ensure the 22 V maximum supply voltage aligns with available power rails.

Part Context

The KA4558D belongs to the KA4558 series of general-purpose operational amplifiers manufactured by onsemi. It serves as a dual-channel variant within this family, offering two independent amplifiers in a single compact package. The device is part of onsemi's broader portfolio of linear ICs and amplifier solutions designed for standard industrial and commercial electronics.

Replacement Considerations

RC4558D from Rochester Electronics is listed as a direct substitute.