BU7232F-E2

Comparators Overview

The BU7232F-E2 is a dual-channel CMOS comparator from ROHM Semiconductor, designed for low-voltage operation with a supply range of 1.8V to 5.5V on a single source or ±0.9V to ±2.75V on dual sources. It features an input offset voltage maximum of 1mV and a typical input bias current of 0.001nA. The device operates with a typical circuit current of 0.01mA and provides a push-pull output capable of full amplitude swing from VSS to VDD. Key electrical parameters include a response time of 1.7µs, a voltage gain of 90dB, and a power supply rejection ratio (PSRR) of 80dB. It supports an output current of 6mA and functions within a temperature range of -40°C to +105°C in an SOP-8 package.

Comparators Feature Summary

• Low power consumption with minimal input bias current for efficient operation in battery-powered systems
• Full amplitude push-pull output stage allowing direct interfacing with digital logic without level shifting
• Wide operating supply voltage range supporting both single and dual power configurations
• Integrated electrostatic protection circuitry enhancing reliability against human body model discharge

Comparators Applications

• Battery-operated portable devices requiring low quiescent current
• Threshold detection circuits in consumer electronics
• Signal conditioning interfaces for microcontrollers
• Voltage monitoring applications in low-power embedded systems

Comparators Procurement Notes

Verify the specific suffix E2 confirms the SOP-8 surface mount package and RoHS compliance status before ordering. Confirm that the application does not require automotive qualification, as this component is designated for standard-grade use and is explicitly not recommended for automotive equipment. Ensure the design accounts for the specified operating temperature range and input voltage limits to maintain performance specifications.

Comparators Selection Notes

Select the BU7232F-E2 when a dual-channel comparator with ultra-low input bias current and low supply voltage compatibility is required. It is suitable for designs where full-swing push-pull outputs simplify downstream logic interfacing. Consider this part over higher-speed variants if lower power consumption is prioritized over faster response times. Verify that the 1.7µs response time meets the system's timing requirements for signal detection.

Comparators Part Context

This component belongs to the BU7232/BU7252 family of CMOS comparators manufactured by ROHM Semiconductor. The family is characterized by low-voltage operation and small input bias currents. The BU7232 variant specifically offers a balance of low power and moderate speed, distinguishing it from the higher-speed BU7252 series. It is part of ROHM's portfolio of general-purpose analog ICs for consumer and industrial applications.

Comparators Replacement Considerations

The BU7232SF is a compatible alternative within the same product family, offering identical pinout and functional characteristics in the SOP-8 package. Both parts share the same low-voltage operation and push-pull output capabilities. Verify that the specific suffix variations do not alter the electrical parameters or packaging requirements for the target application.