BU7461SG-TR

Overview

The BU7461SG-TR is a single-channel, 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 quiescent current of 150 µA per channel. Key electrical specifications include a gain-bandwidth product of 1 MHz, a slew rate of 1 V/µs, and an input offset voltage of 1 mV. The device features ground-sense inputs and full-swing outputs, packaged in an SSOP-5 format with an operating temperature range from -40°C to +105°C.

Feature Summary

• Ground-sense input capability allowing signal detection down to the negative supply rail
• Full-swing output performance maximizing dynamic range in low-voltage applications
• Ultra-low input bias current for high-impedance source interfacing
• Integrated phase compensation capacitors simplifying circuit design

Applications

• Battery-powered portable electronic devices requiring extended runtime
• Low-voltage sensor signal conditioning circuits
• Industrial control systems operating on single-supply rails
• Consumer electronics with strict power consumption constraints

Procurement Notes

Verify the specific suffix TR indicates tape-and-reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SSOP-5 footprint matches the target PCB layout requirements exactly.

Selection Notes

Select this component when ground-referenced input signals are required alongside full-output swing in sub-5V systems. Compare against BU7465HFV if smaller HVSOF5 packaging is preferred. Consider BU7261SG if higher bandwidth or dual-channel configurations are necessary for the application.

Part Context

This part belongs to the BU7461SG series of low-voltage CMOS operational amplifiers. ROHM designs these devices for efficiency in portable and industrial markets. The series emphasizes low power consumption while maintaining sufficient speed for general-purpose analog signal processing tasks.

Replacement Considerations

Official substitutes within the same family include BU7461SFVM-TR for dual-channel requirements. For alternative packages, verify pin compatibility with BU7465HFV variants. Cross-reference with BD7561G-TR only if higher voltage operation up to 14.5 V is acceptable.

FAQ

What is the common-mode input voltage range?

The input voltage range extends from VSS (ground) to VDD minus 1.2 V, enabling ground-sense operation.

Does the device support shutdown functionality?

No, the BU7461SG-TR does not include a shutdown pin or feature; it operates continuously once powered.