BU7486SFV-E2

Overview

The BU7486SFV-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 SSOP-8 format, it supports 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
• High-speed performance with 10 MHz gain-bandwidth product and 10 V/µs slew rate
• Low voltage operation suitable for portable battery-powered applications
• Ultra-low input bias current of 1 pA for minimal loading on high-impedance sources

Applications

• Portable electronic devices requiring low power consumption and wide dynamic range
• Sensor interface circuits where ground-referenced signals must be amplified accurately
• Battery-operated instrumentation utilizing single-supply configurations
• Signal conditioning stages in communication equipment operating at low voltages

Procurement Notes

Verify the specific suffix E2 against the official ROHM datasheet to confirm compliance with RoHS directives and lead-free manufacturing standards. Ensure the SSOP-8 package dimensions match the target PCB footprint requirements before finalizing component selection for production.

Selection Notes

Select this component when ground-sense input is required alongside high-speed amplification in low-voltage environments. Compare the 10 MHz bandwidth against application signal frequencies to ensure adequate phase margin. Consider the 1 pA bias current for high-impedance sensor interfaces where leakage currents could otherwise introduce significant measurement errors.

Part Context

This device belongs to the BU7486 series of CMOS operational amplifiers designed for general-purpose analog signal processing. It complements other members like the BU7485 and BU7487 which offer similar ground-sense characteristics but may vary in channel count or speed specifications. The series targets cost-sensitive consumer electronics markets.

Replacement Considerations

Consult the official ROHM replacement guide for verified substitutes. Direct pin-compatible alternatives within the same family should be evaluated for matching electrical parameters such as slew rate and input offset voltage to maintain circuit performance integrity.

FAQ

What is the input voltage range for the BU7486SFV-E2?

The input voltage range extends from VSS (ground) to VDD minus 1.4 V, enabling ground-sense operation.

Does the BU7486SFV-E2 include a shutdown function?

No, the BU7486SFV-E2 does not feature a shutdown mode; it remains active whenever power is supplied.