BU7487FV-E2

Overview

The BU7487FV-E2 is a four-channel ground sense high-speed low voltage CMOS operational amplifier manufactured by ROHM Semiconductor. It features a gain-bandwidth product of 10 MHz and a slew rate of 10 V/us. The device operates within a supply voltage range of 3 V to 5.5 V, with a typical quiescent current of 6 mA per channel. Input offset voltage is specified at 1 mV, while input bias current is 1 pA. Common-mode rejection ratio is 45 dB, and power supply rejection ratio is 60 dB. It is housed in an SSOP-14 package and supports operating temperatures from -40 C to +105 C.

Feature Summary

• Ground sense input capability allowing operation down to the negative rail
• High-speed performance with wide bandwidth and fast slew rate
• Low voltage operation suitable for portable battery-powered applications
• CMOS technology ensuring low input bias current and power consumption

Applications

• Portable electronic devices requiring low power consumption
• Sensor signal conditioning circuits
• Battery-powered instrumentation systems
• Audio pre-amplification stages
• Data acquisition front-ends

Procurement Notes

Verify the specific suffix E2 for environmental compliance and lead times directly with ROHM Semiconductor or authorized distributors. Confirm availability status as production cycles may vary. Ensure the SSOP-14 package matches your PCB footprint requirements before ordering.

Selection Notes

Select this component when ground-referenced input signals are required without level shifting. Compare against the BU7486 series if fewer channels are needed. Verify that the 10 MHz bandwidth meets your signal frequency requirements. Check thermal dissipation capabilities within the SSOP-14 package for your specific ambient temperature conditions.

Part Context

This part belongs to the BU748x series of CMOS operational amplifiers designed for low-voltage applications. It shares architectural similarities with the BU7486 but offers four channels instead of two. The series is characterized by its ability to handle inputs at the negative supply rail while maintaining full output swing.

Replacement Considerations

Official substitutes include the BU7486FV-E2 for dual-channel applications. Cross-reference with other ROHM ground-sense amplifiers like the BU7485 series for single-channel needs. Ensure pin compatibility and electrical specifications match before substituting.

FAQ

Can the BU7487FV-E2 handle input voltages equal to the negative supply rail?

Yes, it is a ground sense amplifier, meaning the input common-mode voltage range includes the negative supply rail.

What is the maximum supply voltage for this device?

The maximum supply voltage is 5.5 V, with a minimum of 3 V.