BU7251G-TR

Comparators Overview

The BU7251G-TR is a single-channel general-purpose analog comparator manufactured by ROHM Semiconductor. It operates within a supply voltage range of 1.8 V to 5.5 V and features a push-pull output stage capable of sourcing or sinking up to 6 mA. Key electrical parameters include a maximum input offset voltage of 11 mV, an input bias current of 1 pA, and a typical quiescent supply current of 35 µA. The device supports a propagation delay of 550 ns and maintains high common-mode rejection and power supply rejection ratios at 80 dB. It functions reliably across an operating temperature range from -40°C to +85°C.

Comparators Feature Summary

• Features a full-swing push-pull output architecture for direct interfacing with digital logic circuits without requiring external pull-up resistors.
• Designed for low-power applications with minimal quiescent current consumption suitable for battery-operated systems.
• Provides high input impedance characteristics with extremely low input bias current to minimize loading effects on signal sources.

Comparators Applications

• Threshold detection in portable electronic devices
• Signal conditioning for microcontroller input interfaces
• Over-voltage or under-voltage protection circuits

Comparators Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel packaging configuration intended for automated surface-mount assembly. Ensure that the procurement channel provides documentation confirming compliance with RoHS directives and REACH regulations as specified by the manufacturer. Cross-reference the part number against the official ROHM Semiconductor database to validate authenticity and current production status before finalizing orders.

Comparators Selection Notes

Select this component when a single comparator with push-pull output is required for low-voltage operation between 1.8 V and 5.5 V. It is appropriate for designs prioritizing low static current consumption while maintaining sufficient drive capability for digital loads. Consider the SSOP-5 package constraints for PCB layout and verify that the 11 mV maximum input offset voltage meets the precision requirements of the specific application circuit.

Comparators Part Context

This component belongs to the BU725x series of CMOS comparators from ROHM Semiconductor. The series integrates input full-swing capabilities with low power consumption, targeting cost-sensitive consumer electronics. The BU7251G variant specifically denotes a single-channel configuration, distinguishing it from dual-channel counterparts like the BU7252. The TR suffix indicates the standard reel packaging format used for high-volume manufacturing processes.

Comparators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative comparators based on pinout, supply voltage range, and output type specifications.