LM2901M/ELLI520

Overview

The LM2901M/ELLI520 is a quad differential standard comparator manufactured by Texas Instruments. It features four independent channels within a single package, designed for general-purpose analog comparison tasks. The device operates with an open-collector output type and supports a supply voltage range up to 36V. Key electrical specifications include a maximum input offset voltage of 7mV and a typical quiescent current of 2.5mA. The component is rated for operation in temperatures ranging from -40°C to 125°C.

Feature Summary

• Quad differential configuration providing four independent comparison channels
• Open-collector output structure suitable for wired-OR logic applications
• Low-offset voltage design ensuring accurate signal threshold detection

Applications

• Amplifier circuits requiring precise signal limiting
• Data acquisition systems for voltage level monitoring
• General-purpose threshold detection in industrial control

Procurement Notes

Verify the specific suffix ELLI520 against official Texas Instruments documentation, as this designation may indicate a specialized or discontinued variant. Confirm RoHS compliance status and check for Product Discontinuance Notifications (PCN) prior to procurement, as related LM2901M variants have been subject to obsolescence notices. Ensure the source document explicitly lists this exact part number to avoid substitution errors.

Selection Notes

Select this component when a quad comparator with low offset voltage is required for space-constrained designs. The open-collector output necessitates external pull-up resistors, which must be accounted for in the circuit design. Consider the operating temperature range and supply voltage limits to ensure compatibility with the target application environment.

Part Context

This part belongs to the LM2901B series family of low-power, low-offset voltage quad comparators. While similar to the LM2901M/NOPB, the ELLI520 suffix denotes a specific manufacturing or packaging variation. It serves as a general-purpose solution for replacing older discrete comparator implementations in mixed-signal integrated circuits.

Replacement Considerations

The LM2901M/NOPB is a documented equivalent within the same product line. Verify pinout compatibility and electrical parameter tolerances before substitution. Note that some LM2901M variants have been discontinued; confirm current availability and functional equivalence through official TI datasheets.