KA2901DMTF

Overview

The KA2901DMTF is a quad voltage comparator manufactured by Fairchild Semiconductor. It features four independent comparators designed for single or dual supply operation with a wide voltage range of 2V to 36V (or ±1V to ±18V). Key electrical characteristics include a typical low supply current drain of 800µA, low input bias current of 25nA, and low input offset voltage of ±1.4mV. The device utilizes open collector outputs compatible with TTL, DTL, and MOS logic systems.

Feature Summary

• Four independent voltage comparators integrated into a single package
• Wide operating supply voltage range supporting single or dual power sources
• Open collector output configuration enabling wired-OR connections
• Low input bias and offset currents ensuring high precision

Applications

• Precision threshold detection circuits
• Voltage monitoring systems
• Logic level shifting interfaces
• Waveform generation and shaping

Procurement Notes

Verify the specific suffix DMTF against official Fairchild documentation to confirm pinout compatibility and tape-and-reel packaging specifications. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing standards. Cross-reference the datasheet revision date to confirm parameter stability before finalizing procurement orders.

Selection Notes

Select this component when multiple independent comparison functions are required within a limited board space. The wide supply voltage range makes it suitable for various industrial control applications. Consider the open collector output limitation when designing pull-up resistor networks for interfacing with different logic families.

Part Context

This part belongs to the KA2901 family of quad comparators, which includes variants like KA2901 and KA2901A. These devices are functionally similar to other industry-standard quad comparators such as the LM2901. The family is characterized by low power consumption and high gain, making them versatile for analog signal processing tasks.

Replacement Considerations

Potential substitutes include the LM2901 from ON Semiconductor or the TL331 from Texas Instruments. Verify pin compatibility and electrical parameter tolerances before substitution. Ensure that the alternative device supports the same supply voltage range and output drive capabilities.