BU7481SG-TR

Overview

The BU7481SG-TR is a single-channel, high-speed, low-voltage CMOS operational amplifier manufactured by ROHM Semiconductor. It features a gain-bandwidth product of 2.8 MHz and a slew rate of 3.2 V/µs. The device operates on a supply voltage ranging from 1.8 V to 5.5 V with a typical quiescent current of 420 µA per channel. It provides an output current of 8 mA and maintains a low input bias current of 1 pA. The component is housed in a compact SSOP-5 package and supports surface-mount installation.

Feature Summary

• High-speed performance with 2.8 MHz gain-bandwidth product
• Low power consumption suitable for battery-operated devices
• Ultra-low input bias current for precision applications
• Ground-sense input capability with full-amplitude output

Applications

• Portable electronic equipment requiring low voltage operation
• Sensor signal conditioning circuits
• Battery-powered instrumentation systems
• General-purpose analog signal processing
• Communication interface buffering

Procurement Notes

Verify the specific suffix designation against the official manufacturer datasheet to confirm pinout compatibility and electrical characteristics. Ensure the ordering information matches the exact reel packaging requirements for your assembly line. Cross-reference the RoHS compliance status with current regulatory standards before finalizing procurement decisions.

Selection Notes

Select this component when high speed and low voltage operation are required simultaneously. The BU7481SG-TR is appropriate for designs needing ground-referenced inputs while maintaining rail-to-rail output swing. Consider the 1 pA input bias current for high-impedance source applications. Verify that the SSOP-5 package fits within the available PCB real estate constraints.

Part Context

This part belongs to the BU7481 series of low-voltage CMOS operational amplifiers designed for portable applications. The series emphasizes high speed and low power consumption. The SG variant typically denotes an extended temperature range or specific packaging configuration compared to standard versions. It is distinct from the BU7461 series which offers lower bandwidth but similar low-power characteristics.

Replacement Considerations

Official substitute part numbers must be confirmed via the manufacturer's replacement guide. No verified substitutes are listed in the provided documentation. Do not assume functional equivalence with other series members without explicit manufacturer confirmation.

FAQ

What is the input voltage range for the BU7481SG-TR?

The input voltage range extends from VSS to VDD minus 1.2 V, allowing for ground-sense operation.

Does the BU7481SG-TR include a shutdown function?

No, the device does not feature a shutdown mode as indicated in the specifications.