BU7291G-TR

Overview

The BU7291G-TR is a single-channel, low-voltage high-speed CMOS operational amplifier manufactured by Rohm Semiconductor. It operates within a supply voltage range of +2.4 V to +5.5 V on a single power source. The device features an input voltage range extending from VSS to VDD and an output swing capable of reaching VSS+0.1 V to VDD-0.1 V. Key electrical specifications include a typical gain-bandwidth product of 2.8 MHz, a slew rate of 3 V/µs, and a typical circuit current consumption of 0.47 mA per channel. It exhibits a maximum input offset voltage of 9 mV, a typical input bias current of 0.001 nA, and a voltage gain of 105 dB.

Feature Summary

• Integrates internal phase compensation capacitors for single-circuit operation without external components.
• Supports full-swing input and output voltage ranges compatible with the entire supply rail.
• Incorporates built-in electrostatic protection circuits rated at ±4000 V under human body model conditions.

Applications

• Low voltage portable electronic devices requiring minimal power consumption
• Signal conditioning circuits in battery-operated systems
• General-purpose amplification in consumer electronics

Procurement Notes

Verify the specific suffix G-TR against official Rohm documentation to confirm the SSOP-5 package type and tape-and-reel packaging quantity. Ensure compatibility with the required operating temperature range of -40°C to +85°C. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

Selection Notes

Select this component when a single-supply operational amplifier with rail-to-rail input and output capabilities is required. It is suitable for applications demanding low quiescent current alongside moderate speed performance. Consider the SSOP-5 package constraints for PCB layout and thermal management requirements in compact designs.

Part Context

This part belongs to the BU7291 family of low-voltage high-speed CMOS operational amplifiers. The series is characterized by its ability to function efficiently at reduced supply voltages while maintaining high-speed signal processing capabilities. The family includes variants designed for different input types and package configurations to suit various industrial and consumer applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical parameter compatibility if considering alternative manufacturers' parts for existing designs.