BU7487F-E2

Overview

The BU7487F-E2 is a four-channel ground sense high-speed low voltage CMOS operational amplifier manufactured by ROHM Semiconductor. It operates within a supply voltage range of 3 V to 5.5 V, featuring a gain-bandwidth product of 10 MHz and a slew rate of 10 V/us. The device exhibits an input offset voltage of 1 mV and an input bias current of 1 pA. It delivers an output current of 8 mA per channel with a typical quiescent current of 6 mA. Packaged in a SOP-14 format, it supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Ground sense capability allowing input signals down to the negative supply rail
• Full amplitude output swing extending to both positive and negative supply rails
• High-speed performance with wide bandwidth and fast slew rate for signal integrity
• Low power consumption suitable for battery-operated portable equipment

Applications

• Portable electronic devices requiring low voltage operation
• Sensor signal conditioning circuits
• Audio pre-amplification stages
• Data acquisition systems
• Battery-powered instrumentation

Procurement Notes

Verify the specific suffix E2 indicates lead-free compliance and RoHS adherence as per manufacturer standards. Confirm the SOP-14 package dimensions match your PCB footprint requirements. Ensure the operating temperature range aligns with your environmental specifications. Check for any automotive qualification restrictions if used in vehicle applications.

Selection Notes

Select this component when ground-referenced inputs are required without level shifting. Compare against the BU7486F-E2 if only two channels are needed. Consider the BU7462F-E2 for ultra-low power applications where speed is less critical. Verify that the 10 MHz bandwidth meets your signal frequency requirements.

Part Context

This part belongs to the BU7487F series of CMOS operational amplifiers designed for low voltage applications. It shares architectural similarities with the BU7485G and BU7486XXX families but offers four channels in a compact package. The series is optimized for portability and sensor interfaces, distinguishing itself through ground-sense input capabilities.

Replacement Considerations

Official substitutes include the BU7486F-E2 for dual-channel requirements or the BU7485G for single-channel needs. Cross-reference the BU7487SXX series if extended temperature ranges are necessary. Verify pin compatibility before substitution to ensure direct replacement functionality.

FAQ

Can the input voltage reach the negative supply rail?

Yes, the BU7487F-E2 features ground sense capability, allowing the input common-mode voltage to extend to the negative supply rail.

What is the maximum supply voltage for this device?

The maximum supply voltage is 5.5 V, while the minimum operating voltage is 3 V.