LM2901QDRG4Q1

Overview

The LM2901QDRG4Q1 is a quad differential analog comparator manufactured by Texas Instruments, designed for automotive applications. It features an SOIC-14 surface-mount package with 14 pins. The device operates on a single power supply ranging from 5 V to 30 V or dual supplies. Key electrical parameters include a typical response time of 300 ns, a maximum input offset voltage (Vos) of 7 mV, and an input bias current (Ib) of 250 nA. The quiescent supply current is typically 2.5 mA. It supports CMOS and TTL output logic levels and functions within a temperature range of -40 °C to +125 °C.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Quad differential architecture providing four independent comparison channels in a compact integrated circuit.
• Wide single-supply operating voltage range enabling compatibility with various automotive power systems.

Applications

• Automotive sensor signal conditioning
• Voltage monitoring circuits
• Window comparator configurations

Procurement Notes

Verify the specific suffix G4 indicates lead-free and RoHS compliance status according to the manufacturer's latest documentation. Confirm the Q1 designation aligns with required automotive quality standards for the target application. Check for any recent Product Change Notifications regarding pinout or electrical specification updates before finalizing procurement specifications.

Selection Notes

Select this component when multiple independent differential comparisons are required in space-constrained automotive designs. The SOIC-14 package offers a balance between pin count and board area. Ensure the 30 V maximum supply voltage meets the system's peak voltage requirements. Consider the 300 ns propagation delay if high-speed switching is critical for the application timing constraints.

Part Context

This part belongs to the LM2901 family of quad comparators. The Q1 suffix denotes automotive qualification, while G4 indicates environmental compliance. It serves as a general-purpose solution for replacing discrete comparator networks in automotive electronics, offering integrated functionality and reduced bill of materials compared to individual components.

Replacement Considerations

LM2901QDRQ1 is a verified alternative within the same series. Verify package dimensions and pinout compatibility before substitution. Electrical characteristics may vary slightly between revisions; consult official datasheets for precise parameter matching.