BU7485SG-TR

Overview

The BU7485SG-TR is a single-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 and supports an extended industrial temperature range from -40°C to +105°C. Key electrical specifications include a gain-bandwidth product of 2.8 MHz, a slew rate of 3.2 V/µs, and a maximum input offset voltage of 1 mV. The device draws a typical circuit current of 1.5 mA per channel and provides an output current capability of 8 mA. It is housed in a compact SSOP-5 surface-mount package.

Feature Summary

• Input ground sense capability with full amplitude output swing
• High-speed performance with wide bandwidth and high slew rate
• Low voltage operation suitable for portable applications
• Extended operating temperature range for industrial environments

Applications

• Portable electronic devices requiring low power consumption
• Sensor signal conditioning circuits
• Battery-powered instrumentation systems
• General-purpose analog signal processing in consumer electronics

Procurement Notes

Verify the specific suffix 'SG' indicates the extended temperature grade (-40°C to +105°C) compared to standard variants. Confirm the SSOP-5 package dimensions match your PCB footprint requirements. Ensure the reel quantity aligns with production needs without assuming minimum order constraints.

Selection Notes

Select this component when ground-referenced input signals are required alongside high-speed response in low-voltage systems. Compare against the BU7486 series if dual channels are needed. Verify that the 3 V minimum supply voltage meets your system's lowest operating condition. Check thermal management requirements for the SSOP-5 package under continuous load.

Part Context

This part belongs to the BU748x series of ground-sense operational amplifiers from ROHM. The SG suffix denotes the extended temperature variant, distinct from the standard G or FVM packages. It complements other members like the BU7481 and BU7486 within the same functional family but offers specific speed and channel configurations.

Replacement Considerations

Official substitutes within the ROHM portfolio include the BU7486Sxxx series for dual-channel applications. Cross-manufacturer replacements require careful verification of ground-sense input capabilities and output swing characteristics to ensure functional equivalence.