LMH7322SQ/NOPB

Overview

The LMH7322SQ/NOPB is a dual high-speed comparator manufactured by Texas Instruments, housed in a 24-WQFN (4x4 mm) package. It supports single or dual power supplies ranging from 2.7V to 12V. Key electrical specifications include a maximum propagation delay of 0.783ns and a typical output current of 25mA. The device features a maximum input offset voltage of 8mV at 5V and a maximum input bias current of 5µA at 5V. It operates within a temperature range of -40°C to 125°C and offers differential, LVDS, and RSPECL output types.

Feature Summary

• Supports differential, LVDS, and RSPECL output configurations for high-speed signaling compatibility.
• Provides integrated hysteresis to improve noise immunity during signal transitions.
• Operates with low quiescent current consumption suitable for power-sensitive applications.

Applications

• High-speed data acquisition systems requiring fast signal comparison.
• Video signal processing circuits utilizing LVDS interfaces.
• Clock distribution networks employing RSPECL standards.

Procurement Notes

Verify the specific suffix SQ indicates automotive qualification status if required for your design. Confirm the 24-WQFN package dimensions match your PCB footprint constraints. Ensure the supply voltage range aligns with your system's power rails. Check for RoHS compliance documentation as indicated by the NOPB suffix. Validate that the operating temperature range meets your environmental requirements.

Selection Notes

Select this component when differential or LVDS outputs are necessary for high-speed interfacing. Consider the 0.783ns propagation delay for timing-critical paths. Evaluate the 25mA output drive capability against load requirements. Compare input offset voltage specifications if precision threshold detection is critical. Assess the 24-WQFN package size against available board space.

Part Context

This part belongs to the LMH7322 family of high-speed comparators. It shares functional similarities with other members but differs in package type and specific output drive characteristics. The SQ suffix typically denotes automotive-grade reliability standards compared to commercial variants. It complements TI's portfolio of video and high-speed interface components.

Replacement Considerations

Check for LMH7322 variants with different packages such as MSOP or QFN if pinout compatibility is needed. Verify equivalent propagation delay and output logic levels before substitution. Ensure thermal performance matches the original design constraints.