LM2903VQPWR

Overview

The LM2903VQPWR is a dual differential voltage comparator manufactured by Texas Instruments, designed for single-supply operation with a wide voltage range. It features an open-collector output configuration and includes ground in its common-mode input voltage range. The device operates within a supply voltage span of 2 V to 36 V, with typical dual supply voltages including ±3 V, ±5 V, ±9 V, ±12 V, and ±15 V. It exhibits a typical response time of 1.3 µs and a typical voltage gain of 100 dB. The component supports an operating temperature range from -40°C to +125°C and is housed in a TSSOP-8 package measuring 3 mm x 4.4 mm x 1.15 mm.

Feature Summary

• Dual differential voltage comparison capability optimized for single-supply applications
• Open-collector output structure allowing parallel operation with other devices
• Wide single-supply voltage range accommodating diverse power environments
• Extended industrial temperature rating for robust performance

Applications

• Window comparator circuits
• Overvoltage and undervoltage monitoring systems
• General-purpose analog signal switching

Procurement Notes

Verify the specific suffix 'VQ' against the manufacturer's official datasheet to confirm the exact electrical characteristics and package variant. Ensure the ordering part number matches the required automotive or industrial grade specifications if applicable. Cross-reference the pinout and thermal data with the latest TI documentation before finalizing procurement to avoid compatibility issues with existing designs.

Selection Notes

Select this component when a dual-channel comparator with open-collector outputs is required for single-supply systems. It is suitable for applications needing a wide input voltage range and moderate propagation delay. Consider the TSSOP-8 package constraints for PCB layout. Verify that the 1.3 µs response time meets the system speed requirements compared to faster alternatives like the LM2903AV series.

Part Context

This device belongs to the LMx93/LM2903 family of dual differential input voltage comparers. Unlike operational amplifiers designed for linear feedback operations, these comparators are tailored for fast switching and saturation conditions. The family includes variants such as LM193, LM293, and LM393, offering flexibility in packaging and performance levels for various industrial and commercial uses.

Replacement Considerations

LM2903AVQPWR offers enhanced performance with lower offset voltage and faster response times. LM2903VQDR provides the same electrical characteristics but in an SOIC-8 package instead of TSSOP-8.