LM2903DRCT

Overview

The LM2903DRCT is a dual voltage comparator manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It operates on single or dual supplies ranging from 2V to 36V. The device features open-collector outputs compatible with TTL, MOS, and CMOS logic families. Key electrical specifications include a typical response time of 1.3µs, a maximum input offset voltage of 7mV at 5V, and a maximum input bias current of 0.25µA at 5V. It supports a supply current of up to 2.5mA and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Dual independent voltage comparators designed for wide supply voltage operation
• Open-collector output configuration allows flexible logic interfacing
• Input common-mode voltage range includes ground potential

Applications

• Automotive body control modules
• Industrial monitoring systems
• Appliance control circuits

Procurement Notes

Verify the specific suffix 'CT' corresponds to Cut Tape packaging when sourcing. Confirm the manufacturer designation as Texas Instruments for this part number variant. Ensure compliance with RoHS directives if required by the target application environment. Cross-reference the exact ordering code against official distributor catalogs to confirm availability status.

Selection Notes

Select this component for applications requiring dual comparators with low power consumption and wide supply voltage tolerance. The SOIC-8 package is suitable for standard surface-mount assembly processes. Consider the open-collector output requirement for pull-up resistor integration into the circuit design. Verify that the operating temperature range meets the environmental constraints of the final product deployment.

Part Context

This device belongs to the industry-standard LM2903 family of dual comparators. It provides a cost-effective solution for general-purpose voltage comparison tasks. The component is widely utilized across various electronic sectors due to its reliability and established performance characteristics. It serves as a foundational building block for signal conditioning and threshold detection circuits.

Replacement Considerations

LM2903DR

FAQ

What is the maximum differential input voltage rating?

The differential input voltage can equal the maximum-rated supply voltage, allowing inputs to withstand up to 36V without damage.

Can the input voltage go negative?

The common-mode input voltage range includes ground, but the voltage at any input should not be allowed to go negative by more than 0.3V.