LM2903FV-E2

Overview

The LM2903FV-E2 is a dual-channel analog comparator manufactured by ROHM Semiconductor, designed for general-purpose applications. It operates within a supply voltage range of 3 V to 32 V and draws a typical operating current of 600 µA. The device features an open collector output capable of sourcing 16 mA per channel. Key electrical specifications include a maximum input offset voltage of 4.5 mV and an input bias current of 250 nA. The response time is typically 1 µs. It is housed in an SSOP-B8 surface-mount package and supports an extended operating temperature range from -40°C to +125°C.

Feature Summary

• Supports ground-sensed input and output operation, allowing signals near the ground potential.
• Features wide operating supply voltage compatibility ranging from single 3 V to 32 V sources.
• Provides open collector outputs suitable for interfacing with various logic families.

Applications

• General purpose voltage comparison circuits
• Ground-referenced signal monitoring
• Over-voltage or under-voltage detection systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official datasheets. Check for end-of-life notifications as this specific variant may be marked as not recommended for new designs. Ensure packaging details match requirements for automated assembly processes.

Selection Notes

Select this component when dual-channel comparison with ground-sense capability is required. Consider the 1 µs response time and 4.5 mV offset voltage for precision needs. Verify that the SSOP-B8 package fits the PCB layout constraints. Compare against the LM2901FV-E2 if four channels are needed instead of two.

Part Context

This part belongs to the LM2903 series of dual comparators from ROHM Semiconductor. It shares functional similarities with other ground-sense comparators but is distinct in its specific pinout and package configuration. The E2 suffix typically denotes environmental compliance or specific manufacturing lot characteristics defined by the manufacturer.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with LM2901FV-E2 for quad-channel requirements or LM2903FJ-E2 for alternative packaging options, ensuring electrical parameters match application needs.