KA311DTF

Overview

The KA311DTF is a monolithic single voltage comparator manufactured by onsemi, housed in an 8-SOP surface-mount package. It operates from single supplies of 5.0V to 30V or dual split supplies of ±15V. Key electrical characteristics include a maximum input bias current of 250nA and a typical response time of 200ns. The device features offset voltage null capability and strobe functionality.

Feature Summary

• Supports operation from single or dual power supply configurations
• Includes dedicated pins for offset voltage nulling
• Provides strobe control capability for output gating

Applications

• Voltage monitoring circuits
• Level detection systems
• Time delay generation

Procurement Notes

Verify the specific manufacturer origin, as the datasheet originates from Fairchild Semiconductor while the brand is listed as onsemi. Confirm that the 8-SOP package designation aligns with your board layout requirements. Ensure the operating temperature range meets your environmental specifications before finalizing procurement.

Selection Notes

Select this component when low input bias current is required for high-impedance signal sources. The inclusion of offset null pins allows for precision adjustments in sensitive applications. Verify compatibility with available supply voltages, as the device supports both single-ended and split-rail power architectures.

Part Context

This part belongs to the KA311 series of analog comparators. It serves as a surface-mount alternative to through-hole variants like the KA311 in an 8-DIP package. The series is designed for general-purpose comparison tasks requiring low input current and wide supply voltage flexibility.

Replacement Considerations

The KA311D is a documented pin-compatible replacement within the same product family.