BU7486SF-E2

Overview

The BU7486SF-E2 is a dual-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 features a gain-bandwidth product of 10 MHz with a slew rate of 10 V/µs. The device exhibits an input offset voltage of 1 mV and an input bias current of 1 pA. It provides an output current of 8 mA per channel and maintains a common-mode rejection ratio of 45 dB. Packaged in an SOP-8 format, it supports surface-mount installation and functions reliably across temperatures from -40°C to +105°C.

Feature Summary

• Ground sense input capability allowing operation down to the negative supply rail
• High-speed performance with wide bandwidth and fast slew rate for signal integrity
• Low voltage operation suitable for portable and battery-powered applications
• Ultra-low input bias current ensuring minimal loading on high-impedance sources

Applications

• Portable electronic devices requiring low power consumption and small form factors
• Sensor signal conditioning circuits where ground-referenced inputs are necessary
• Battery-operated equipment utilizing single-supply architectures
• General-purpose analog signal processing in consumer electronics
• Interface circuits for low-voltage microcontrollers and data acquisition systems

Procurement Notes

Verify the specific ordering suffix and package variant against the official manufacturer datasheet before procurement. Ensure that the selected component matches the required operating temperature range and electrical specifications for the intended application environment. Cross-reference the part number with authorized distributors to confirm availability and authenticity.

Selection Notes

Select this component when ground-sense input capability is required alongside high-speed amplification in low-voltage environments. Compare the 10 MHz gain-bandwidth product and 10 V/µs slew rate against system requirements to ensure adequate performance margins. Consider the SOP-8 package dimensions for PCB layout constraints and thermal management needs relative to similar series alternatives.

Part Context

This device belongs to the BU7486SF series of CMOS operational amplifiers designed for ground-sense applications. It complements other members like the BU7486SFV-E2 which offers an SSOP-8 package option. The series is characterized by its ability to handle signals near the negative rail while maintaining high speed and low power consumption, making it distinct from standard rail-to-rail amplifiers that may not support true ground sensing.

Replacement Considerations

The BU7486SFV-E2 serves as a pin-compatible alternative offering the same electrical characteristics but housed in an SSOP-8 package instead of SOP-8. Verify mechanical footprint compatibility during substitution. No other direct replacements are confirmed in the provided documentation.