LM2901PT

Overview

The LM2901PT is a quad voltage comparator manufactured by STMicroelectronics, not Rohm Semiconductor. It features four independent precision comparators designed for single or dual supply operation. The device operates within a wide voltage range of 2 V to 36 V. Key electrical parameters include a maximum input offset voltage of 7 mV and an operating supply current of 2 mA. The output stage supports multiple logic families including CMOS, DTL, ECL, MOS, and TTL. It is housed in a 14-TSSOP surface-mount package with an operating temperature range from -40°C to +125°C.

Feature Summary

• Quad configuration providing four independent precision voltage comparators in a single package
• Wide single supply voltage range capability from 2 V to 36 V
• Input common-mode voltage range includes the negative rail even with single supply operation
• Output compatibility with standard logic families such as CMOS, DTL, ECL, MOS, and TTL

Applications

• General purpose analog signal comparison circuits
• Voltage monitoring systems requiring low power consumption
• Interface circuits between analog sensors and digital logic inputs

Procurement Notes

Verify manufacturer identity carefully as the model number corresponds to STMicroelectronics products. Confirm package type matches design requirements. Check RoHS compliance status for specific production batches. Ensure ordering suffix aligns with desired packaging format. Validate component authenticity through authorized distribution channels.

Selection Notes

Select this component when multiple independent comparators are needed in space-constrained designs. Consider the wide supply voltage range for flexible power system integration. Evaluate the low input bias current for high-impedance sensor interfaces. Verify thermal performance within the specified operating temperature range.

Part Context

This part belongs to the LM2901 series of low-power quad voltage comparators. The series is characterized by its ability to operate from a single supply while maintaining input common-mode range down to the negative rail. The PT suffix indicates the TSSOP-14 surface-mount package variant.

Replacement Considerations

Compatible alternatives include LM2901DT and LM2901N from various manufacturers. Verify pinout compatibility and electrical specifications before substitution. Check package dimensions for mechanical fit in existing PCB layouts.