BU7230SG-TR

Comparators Overview

The BU7230SG-TR is a single-channel analog comparator from ROHM Semiconductor, housed in an SSOP-5 surface-mount package. It operates on a single supply voltage ranging from 1.8 V to 5.5 V. The device features low power consumption with a typical operating current of 5 µA and an open-drain output capable of sourcing 6 mA. Key electrical specifications include a maximum input offset voltage of 11 mV, typical input bias currents of 1 pA, and a response time of 1.8 µs. It provides high common-mode rejection (80 dB) and power supply rejection (80 dB), functioning within a temperature range of -40°C to +105°C.

Comparators Feature Summary

• Supports full-swing input voltage ranges extending from the negative supply rail to the positive supply rail.
• Features low-power operation suitable for battery-powered applications with minimal quiescent current draw.
• Includes built-in electrostatic protection circuits to safeguard against static discharge events.

Comparators Applications

• Low-voltage signal processing circuits requiring precise threshold detection
• Battery-operated portable devices where power efficiency is critical
• General-purpose voltage monitoring and level-shifting interfaces

Comparators Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm that the SSOP-5 footprint matches the target PCB design constraints. Ensure the application environment remains within the specified -40°C to +105°C operational temperature limits. Check RoHS compliance documentation if required by local regulations. Validate that the open-drain output configuration aligns with the downstream logic requirements.

Comparators Selection Notes

Select this component when a single comparator with rail-to-rail input capability is needed at low voltages. It is appropriate for designs prioritizing ultra-low standby current over high-speed switching. Consider the open-drain output requirement for pull-up resistor integration. Compare against the push-pull output variant BU7231SG if drive strength without external resistors is necessary.

Comparators Part Context

This part belongs to the BU7230G series of low-consumption comparators. It represents an expanded temperature range version of the standard BU7230G. The series is designed for CMOS low-voltage applications, offering a compact solution for signal comparison tasks in space-constrained electronic systems.

Comparators Replacement Considerations

The BU7231SG-TR serves as a functional substitute within the same family, differing primarily in its push-pull output stage compared to the open-drain output of the BU7230SG-TR. Both share identical pinouts, supply voltage ranges, and general performance characteristics.