BU7252SF-E2

Comparators Overview

The BU7252SF-E2 is a dual-channel analog comparator manufactured by ROHM Semiconductor, housed in an SOP-8 surface-mount package. It operates on a single supply voltage ranging from 1.8 V to 5.5 V or dual supplies of ±0.9 V to ±2.75 V. The device features push-pull outputs capable of full amplitude swing and draws a typical operating current of 35 µA. Key electrical specifications include a maximum input offset voltage of 11 mV, a typical input bias current of 1 pA, and a typical response time of 0.55 µs. It provides a typical output current of 6 mA per channel with common-mode rejection and power supply rejection ratios of 80 dB.

Comparators Feature Summary

• Supports low-voltage operation with a wide supply range from 1.8 V to 5.5 V.
• Features push-pull outputs that allow for full amplitude input and output voltage swings.
• Incorporates built-in electrostatic protection circuits rated at ±4000 V under the human body model.

Comparators Applications

• General-purpose signal comparison in low-voltage electronic circuits
• Threshold detection systems requiring high input impedance
• Battery-powered devices due to low quiescent current consumption

Comparators Procurement Notes

Verify the specific suffix E2 against the manufacturer's datasheet to confirm compliance with RoHS directives and material declarations. Ensure the SOP-8 package dimensions match the target PCB footprint requirements. Confirm that the operating temperature range of -40°C to +105°C aligns with the environmental conditions of the intended application. Check for any automotive qualification restrictions as the product is classified as standard grade.

Comparators Selection Notes

Select this component when a dual-channel comparator with push-pull outputs is required for low-voltage applications. It is suitable for designs needing high input impedance and low power consumption. Consider the 11 mV maximum input offset voltage for precision requirements. Verify that the 0.55 µs response time meets the speed requirements of the circuit. Ensure the SOP-8 package is compatible with the assembly process.

Comparators Part Context

This part belongs to the BU7252SF series of CMOS low-voltage comparators. It integrates two independent comparator circuits on a single chip. The series is characterized by small current consumption and very low input bias current. It is designed for use in general-purpose electronics where low voltage operation and high reliability are necessary.

Comparators Replacement Considerations

The BU7252SF is listed as an alias for this part number. Other members of the BU725x family may offer similar functionality but should be verified for pin compatibility and electrical parameter alignment before substitution.