LM2901AS14-13

Overview

The LM2901AS14-13 is a quad differential comparator manufactured by Diodes Incorporated, housed in an SO-14 package. It features four independent precision voltage comparators with low input offset voltage (typical 1mV). The device operates from a single supply of 2V to 36V or dual supplies of ±1V to ±18V. Key electrical characteristics include a typical supply current of 0.9mA, low input bias current of 25nA, and output saturation voltage of 100mV at 4mA sink current. It supports open-collector outputs compatible with TTL, MOS, and CMOS logic.

Feature Summary

• Low input offset voltage specification for high precision applications
• Wide power supply range supporting both single and dual supply configurations
• Open-collector outputs allow wired-AND connection capabilities
• Input common-mode voltage range includes ground potential

Applications

• Direct interface with TTL and CMOS logic circuits
• MOS logic interfacing where low power drain is advantageous
• Precision voltage monitoring systems
• Threshold detection circuits

Procurement Notes

Verify the specific ordering suffix -13 corresponds to tape and reel packaging containing 2500 units per reel. Confirm the S14 package code matches the required SO-14 footprint. Ensure the A-suffix designation is selected if the lower 1mV typical offset voltage is required rather than the standard 2mV version. Check RoHS compliance status against current environmental directives.

Selection Notes

Select this component when precise voltage comparison is needed with minimal offset error. The A-suffix variant provides tighter offset voltage specifications compared to the standard LM2901. Consider the SO-14 package dimensions for PCB layout constraints. Verify that the open-collector output configuration aligns with the system's pull-up requirements and logic levels.

Part Context

This part belongs to the LM2901/2903 series of dual and quad differential comparators. The series is designed for wide voltage operation and low power consumption. The LM2901 variant contains four comparators, while the LM2903 contains two. Both are available in various packages including SO-8, TSSOP-8, MSOP-8, SO-14, and TSSOP-14.

Replacement Considerations

LM2901T14-13

FAQ

What is the maximum differential input voltage?

The differential input voltage can be up to 36V without damaging the device.

Can the inputs go negative?

The input common-mode voltage range includes ground, but inputs should not go more than 0.3V below the negative supply rail.

Is hysteresis required for stable operation?

Hysteresis is recommended to prevent oscillation caused by stray capacitance coupling between the output and inputs during transitions.