LM2901VQDRG4

Overview

The LM2901VQDRG4 is a quad differential analog comparator manufactured by Texas Instruments, housed in a 14-pin SOIC surface-mount package. It operates on a single supply voltage ranging from 2 V to 32 V or dual supplies including ±3 V, ±5 V, ±9 V, ±12 V, and ±15 V. The device features an open-collector output type compatible with CMOS and TTL logic families. 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 operating supply current is specified at 2.5 mA, with a typical voltage gain of 100 dB. It supports a wide operating temperature range from -40 °C to +125 °C.

Feature Summary

• Quad differential architecture providing four independent comparison channels within a single integrated circuit.
• Open-collector output configuration ensuring compatibility with various digital logic standards including CMOS and TTL.
• Wide single-supply voltage operation capability spanning from low-voltage 2 V up to 32 V for flexible power integration.

Applications

• General-purpose analog signal comparison in industrial control systems
• Voltage monitoring and threshold detection circuits
• Interface between analog sensors and digital logic controllers

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the SOIC-14 package dimensions match PCB footprint requirements. Ensure the 300 ns response time specification aligns with system timing constraints. Validate that the 7 mV input offset voltage meets application accuracy needs under expected temperature variations.

Selection Notes

Select this component when multiple independent differential comparisons are required in a compact surface-mount form factor. The wide supply voltage range suits applications powered by standard industrial rails. Consider the open-collector output requirement for pull-up resistor implementation. Evaluate the 2.5 mA supply current against total system power budgets compared to lower-power alternatives.

Part Context

This part belongs to the LM2901 series of quad comparators from Texas Instruments. It shares functional similarities with other variants like the LM2901DR but differs in packaging and specific qualification markings. The 'VQDRG4' designation specifies the SOIC-14 package, tape-and-reel delivery, and environmental compliance attributes distinct from through-hole or automotive-grade versions.

Replacement Considerations

LM2901DR serves as a pin-compatible alternative in the same SOIC-14 package family. LM2901AVQPWRG4Q1 offers similar functionality in a TSSOP-14 package with AEC-Q100 automotive qualification. Verify electrical parameter overlaps before substitution.