KA1458

Overview

The KA1458 is a dual general-purpose operational amplifier featuring internal frequency compensation and short-circuit protection. It operates within a supply voltage range of ±18 V, with an operating temperature range of 0°C to +70°C. Key electrical characteristics include a typical input offset voltage of 2 mV, an input bias current of 80 nA, and a large signal voltage gain of 200 V/mV. The device draws a typical supply current of 2.3 mA per amplifier pair and provides an output short-circuit current of 20 mA.

Feature Summary

• Internal frequency compensation eliminates the need for external components
• Short circuit protection safeguards against output faults
• High common mode voltage range suitable for voltage follower configurations
• Absence of latch-up ensures stable operation across wide voltage ranges

Applications

• Integrator circuits
• Summing amplifiers
• General feedback applications
• Voltage followers

Procurement Notes

Verify the manufacturer origin, as the datasheet indicates Fairchild Semiconductor copyright while onsemi is listed as the brand. Confirm the specific package variant (8-DIP, 8-SOP, or 9-SIP) matches the required mechanical footprint. Ensure the operating temperature grade aligns with the 0°C to +70°C specification provided in the official documentation.

Selection Notes

Select this component for analog applications requiring dual amplification without external compensation networks. It is appropriate for designs needing high common-mode rejection and protection against short circuits. Consider the available package options including DIP, SOP, and SIP formats based on board space constraints.

Part Context

The KA1458 series consists of dual operational amplifiers designed for versatile analog signal processing. Originally documented by Fairchild Semiconductor, it serves as a robust solution for general-purpose amplification tasks. The device integrates essential protections and compensation internally to simplify circuit design.

Replacement Considerations

MC1458

FAQ

Does the KA1458 require external components for frequency compensation?

No, the KA1458 features internal frequency compensation and requires no external components for this purpose.

What is the maximum power supply voltage for the KA1458?

The absolute maximum power supply voltage rating is ±18 V.