BA2901SF-E2

Overview

The BA2901SF-E2 is a general-purpose analog comparator manufactured by Rohm Semiconductor, featuring four independent circuits in a 14-SOP surface-mount package. It operates on a single supply voltage ranging from 2V to 36V or dual supplies of ±1V to ±18V. The device provides open-collector outputs with a typical output current of 16mA at 5V and a maximum static current consumption of 2mA. Input characteristics include a maximum input offset voltage of 7mV at 5V and an input bias current of 0.25µA at 5V. The component supports a wide operating temperature range from -40°C to 105°C.

Feature Summary

• Supports wide single and dual power supply voltage ranges for flexible system integration
• Features open-collector outputs capable of driving external loads with high current capability
• Enables ground-level signal sensing through near-GND input and output operation
• Includes built-in electrostatic protection circuits for enhanced reliability

Applications

• General purpose voltage level detection
• Threshold detection circuits
• Temperature monitoring systems
• Battery voltage supervision

Procurement Notes

Verify the specific ordering suffix and packaging configuration required for your production needs, as availability may vary between tape-and-reel and cut-tape formats. Confirm that the component status aligns with your design lifecycle requirements, noting that this part may be subject to end-of-life notifications. Ensure compatibility with your assembly processes regarding the SOP-14 package dimensions and soldering profiles before finalizing procurement decisions.

Selection Notes

Select this component when a multi-channel comparator solution is required within a compact surface-mount footprint. It is suitable for applications demanding low power consumption alongside wide supply voltage tolerance. Consider the open-collector output topology if interfacing with different logic voltage levels is necessary. Evaluate the input offset voltage specifications against your precision requirements to ensure adequate performance margins in your specific circuit design.

Part Context

This device belongs to the BA2901 series of standard comparators produced by Rohm Semiconductor. It shares functional similarities with other members of the family but is distinguished by its four-channel configuration and specific SOP-14 packaging. The series is designed for general-purpose analog comparison tasks where cost-effectiveness and broad operational flexibility are prioritized over ultra-high speed or extreme precision.

Replacement Considerations

Publicly confirmed substitute part numbers include BA2901SF-BZE2.