BU7442F-E2

Overview

The BU7442F-E2 is a dual-channel ground sense low voltage operational amplifier manufactured by ROHM Semiconductor. It operates within a supply voltage range of 1.7 V to 5.5 V and consumes a typical operating current of 100 uA. Key electrical parameters include a gain-bandwidth product of 600 kHz, a slew rate of 300 mV/us, and an input bias current of 1 pA. The device features a maximum input offset voltage of 1 mV and provides an output current of 6 mA per channel. It is housed in an SOP-8 package and functions reliably across a temperature range of -40 C to +85 C.

Feature Summary

• Ground sense input capability allowing operation down to the negative supply rail
• Full amplitude output swing extending close to both supply rails
• Ultra-low power consumption suitable for battery-operated applications
• Integrated phase compensation capacitors for stable operation

Applications

• Portable consumer electronics requiring extended battery life
• Sensor signal conditioning circuits with low voltage supplies
• Battery-powered instrumentation and measurement devices
• Low voltage analog signal processing in mobile devices

Procurement Notes

Verify the specific suffix E2 against the official manufacturer datasheet to confirm pinout compatibility and electrical characteristics. Ensure the SOP-8 package dimensions match your PCB footprint requirements. Confirm RoHS compliance status directly from the latest documentation provided by ROHM Semiconductor before integration.

Selection Notes

Select this component when designing circuits that require ground-referenced inputs without level shifting. The low quiescent current makes it ideal for energy-constrained systems. Compare the 600 kHz bandwidth against application signal frequencies to ensure adequate performance margins. Verify that the 6 mA output drive capability meets the load requirements of the downstream circuitry.

Part Context

This device belongs to the BU7442F series of CMOS operational amplifiers designed for low voltage applications. It represents a standard-grade product intended for general-purpose use in portable equipment. The series emphasizes low power and high input impedance characteristics typical of modern CMOS op-amp designs from ROHM Semiconductor.

Replacement Considerations

Consult the official ROHM Semiconductor documentation for confirmed substitute part numbers. Do not assume functional equivalence with other series members without verifying specific electrical parameters and pin configurations against the manufacturer's guidelines.