LM2901MX/ELLI956

Overview

The LM2901MX/ELLI956 is a quad differential voltage comparator manufactured by Texas Instruments. It features four independent comparators designed for operation from a single power supply, with a common-mode input voltage range that includes ground. The device utilizes open-collector outputs to facilitate wired-AND connections and compatibility with various logic families. It is housed in a surface-mount package suitable for automated assembly processes.

Feature Summary

• Quad differential input architecture providing four independent comparison channels
• Single-supply operation capability with ground-referenced common-mode input range
• Open-collector output configuration enabling flexible interfacing and wired-logic implementation

Applications

• Voltage monitoring circuits
• Threshold detection systems
• Simple time-delay generation

Procurement Notes

Verify the specific suffix ELLI956 against official Texas Instruments documentation to confirm it denotes a valid tape-and-reel packaging variant or customer-specific marking rather than a functional deviation. Ensure the ordering part number matches the exact package type and temperature grade required for the design. Cross-reference with the manufacturer's current product status to confirm availability and lifecycle stage before finalizing procurement plans.

Selection Notes

Select this component when a low-power, multi-channel comparison solution is required within a single integrated circuit. The open-collector outputs allow direct interfacing with TTL and CMOS logic without additional level-shifting components in many configurations. Consider the propagation delay specifications relative to the application speed requirements and ensure the supply voltage remains within the specified operational limits for stable performance.

Part Context

This device belongs to the LM2901 family of low-power, low-offset voltage quad comparators. It shares architectural similarities with the LM139 and LM339 series but offers specific performance characteristics tailored for general-purpose analog comparison tasks. The MX suffix typically indicates a plastic small-outline package variant optimized for surface-mount technology applications.

Replacement Considerations

LM2901DR

FAQ

Does the LM2901MX support dual-supply operation?

While primarily designed for single-supply operation with ground-referenced inputs, the device can operate with dual supplies provided the total supply voltage does not exceed the maximum rating.

What is the typical input offset voltage for this comparator?

The datasheet specifies a low input offset voltage characteristic, though exact values depend on the specific temperature grade and manufacturing lot defined in the official electrical characteristics table.