KA3403DTF

Overview

The KA3403DTF is a monolithic quad operational amplifier from the KA3303/KA3403 series, manufactured by onsemi. It features four independent amplifiers with high gain and internal frequency compensation. The device supports single supply voltages of 3.0V to 36V or dual supplies of ±1.5V to ±18V. It utilizes a Class AB output stage for minimal crossover distortion and includes short circuit protection. The component is housed in a 14-SOP package and operates within a temperature range of 0°C to +70°C.

Feature Summary

• Supports operation from single or dual power supplies over a wide voltage range
• Features Class AB output stage to minimize crossover distortion
• Includes built-in short circuit protection for the output stage

Applications

• General-purpose analog signal processing circuits
• Audio pre-amplification stages
• Active filter designs

Procurement Notes

Verify the specific ordering suffix 'DTF' against official manufacturer documentation to confirm the exact package type and tape-and-reel specifications. Confirm that the commercial temperature grade (0°C to +70°C) aligns with your system requirements. Ensure compatibility with existing PCB footprints for the 14-SOP package before finalizing procurement decisions.

Selection Notes

Select this component when a quad amplifier configuration is required for cost-sensitive applications. It serves as a functional alternative to the KA741 series but offers improved performance characteristics such as lower crossover distortion. Consider the input common mode range which includes the negative supply rail, simplifying biasing requirements in many single-supply configurations.

Part Context

This part belongs to the KA3303/KA3403 family of quad operational amplifiers originally developed by Fairchild Semiconductor. The KA3403 variant specifically denotes the commercial temperature grade version. The series is designed to provide electrical characteristics similar to the standard KA741 while offering enhanced features like direct coupling to ground or negative supplies without external biasing components.

Replacement Considerations

Public confirmed substitute part numbers: None identified.