LP2901DR

Overview

The LP2901DR is a quad, low-power, general-purpose differential comparator manufactured by Texas Instruments. It features four independent comparators in a 14-SOIC package. The device operates on a single supply voltage ranging from 2 V to 30 V. Key electrical specifications include a maximum input offset voltage of 5 mV and a typical quiescent current of 800 µA. The output stage provides open-collector capability compatible with CMOS and TTL logic families. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates four independent differential comparators within a single integrated circuit for space-efficient designs.
• Features low power consumption suitable for battery-operated applications through optimized quiescent current characteristics.
• Provides open-collector outputs that ensure compatibility with various digital logic standards including CMOS and TTL.

Applications

• General-purpose signal comparison circuits
• Threshold detection systems
• Low-power industrial control interfaces

Procurement Notes

Verify the specific suffix 'DR' confirms the SOIC-14 surface-mount package and tape-and-reel shipping configuration. Confirm the automotive or commercial grade designation aligns with the required operational temperature range of -40°C to +85°C. Ensure the open-collector output type matches the pull-up requirements of the target logic interface. Cross-reference the manufacturer part number against official Texas Instruments documentation to validate authenticity and revision status.

Selection Notes

Select this component when multiple independent voltage comparisons are required in a compact surface-mount footprint. The low power profile makes it suitable for portable devices where energy efficiency is critical. The wide single-supply voltage range allows flexibility in system power architecture without requiring negative rails. Verify that the open-collector output structure meets the drive requirements of the downstream logic gates.

Part Context

The LP2901 belongs to Texas Instruments' family of low-power analog comparators. It serves as a quad-channel alternative to dual-channel devices like the LM339. The DR suffix indicates a plastic small-outline package designed for automated surface-mount assembly processes. This series emphasizes low current draw while maintaining standard comparator functionality for cost-sensitive applications.

Replacement Considerations

LM2901DR: Commercial grade equivalent with similar pinout and electrical characteristics but potentially different temperature ranges.

FAQ

What is the output configuration of the LP2901DR?

The LP2901DR features open-collector outputs for all four comparators, requiring external pull-up resistors to define the high logic level.

Does the LP2901DR support dual supply operation?

The datasheet specifies a single supply voltage range of 2 V to 30 V. Dual supply operation is not explicitly documented as a primary feature in the provided specifications.