BU7251SG-TR

Comparators Overview

The BU7251SG-TR is a single-channel CMOS comparator manufactured by Rohm Semiconductor, housed in a 5-SSOP surface-mount package. It operates on a single supply voltage ranging from 1.8V to 5.5V or dual supplies of ±0.9V to ±2.75V. Key electrical specifications include a maximum input offset voltage of 11mV at 3V, a typical quiescent current of 15µA, and a propagation delay of 550ns. The device features push-pull outputs capable of sourcing 6mA at 3V, with common-mode rejection and power supply rejection ratios typically rated at 80dB.

Comparators Feature Summary

• Supports full-swing input and output operation across the entire supply voltage range.
• Features low power consumption with minimal input bias current for efficient operation.
• Integrates built-in electrostatic protection circuits for enhanced reliability.

Comparators Applications

• Low-voltage signal processing circuits
• Threshold detection systems
• Battery-powered portable devices

Comparators Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm pinout compatibility and functional equivalence. Ensure that the selected component meets the required operating temperature range and packaging specifications for your design. Cross-reference the datasheet parameters with your system requirements before finalizing procurement decisions.

Comparators Selection Notes

Select this component when a single-channel comparator with push-pull output is required for low-voltage applications. Consider its high input impedance and low quiescent current for battery-operated designs. Verify that the 550ns propagation delay meets the timing requirements of your specific application circuit.

Comparators Part Context

This part belongs to the BU7251/BU7231 family of CMOS comparators designed for low-voltage operation. These monolithic ICs integrate full-swing input and push-pull output stages into a single chip. The series is characterized by low power consumption and small input bias currents, making it suitable for various general-purpose comparison tasks.

Comparators Replacement Considerations

Publicly confirmed substitute part numbers include BU7250SG and BU7231SG. Verify pinout and electrical parameter compatibility before substitution.

Comparators FAQ

What is the typical quiescent current consumption?

The typical quiescent current is 15µA.

Does the device support full-swing input and output?

Yes, the input and output can operate with full swing across the supply voltage range.