BU7261SG-TR

Overview

The BU7261SG-TR is a single-channel, full-swing operational amplifier manufactured by Rohm Semiconductor. It operates on a single power supply ranging from 1.8V to 5.5V with a typical quiescent current of 0.25mA per channel. The device features a gain-bandwidth product of 2MHz and a slew rate of 1.1V/µs. Input offset voltage is typically 1mV, while input bias current is extremely low at 1pA. Output swing reaches within 0.1V of the supply rails. It is housed in a compact 5-SSOP package and supports an operating temperature range from -40°C to +105°C.

Feature Summary

• Supports full-amplitude input and output voltage swings relative to the power supply rails.
• Integrates internal phase compensation capacitors for stability without external components.
• Operates efficiently at low voltages starting from 1.8V with minimal current consumption.
• Maintains stable performance across a wide industrial temperature range.

Applications

• Low-voltage portable electronic devices requiring high efficiency
• Battery-powered instrumentation circuits
• Signal conditioning in consumer electronics

Procurement Notes

Verify the specific suffix (e.g., TR, CT, DKR) matches the required packaging format such as tape-and-reel or cut-tape. Confirm RoHS compliance status and ensure the component meets the intended environmental temperature specifications for the target application environment before finalizing orders.

Selection Notes

Select this component when full rail-to-rail output capability is required alongside ultra-low input bias current. It is suitable for applications where power supply voltage is limited to 5.5V maximum. Ensure the design accommodates the specified gain-bandwidth product and slew rate for the intended signal frequencies.

Part Context

This part belongs to the BU7261 series of CMOS operational amplifiers produced by Rohm Semiconductor. The series includes variants with one, two, or four amplifiers per chip. The BU7261SG-TR specifically denotes the single-channel version supplied in tape-and-reel packaging for automated surface-mount assembly processes.

Replacement Considerations

ISL28113FHZ-T7A is listed as a potential substitute. Verify pin compatibility and electrical parameter alignment before implementation.