BU4220FVE-TR

Overview

The BU4220FVE-TR is a single-channel, low-voltage operational amplifier manufactured by Rohm Semiconductor. Designed for portable and battery-powered applications, this device operates within a supply voltage range of 1.8V to 5.5V. It features a rail-to-rail input and output capability, ensuring maximum dynamic range in low-voltage systems. The component integrates a CMOS input stage with a bipolar output stage to achieve high speed and precision. Key electrical characteristics include a typical slew rate of 3V/µs and a unity-gain bandwidth of 1MHz. It is housed in an ultra-small SOT-25 package, facilitating space-constrained designs.

Feature Summary

• Rail-to-rail input and output operation for extended dynamic range
• Low voltage operation suitable for single-supply systems
• Compact SOT-25 surface-mount package design

Applications

• Portable audio equipment signal conditioning
• Battery-operated sensor interface circuits
• Active filter implementations in mobile devices

Procurement Notes

Verify the complete part number against official Rohm Semiconductor documentation to ensure correct suffixes and tape-and-reel specifications. Confirm that the requested variant matches the required operating temperature range and package type. Cross-reference the datasheet revision date to ensure access to the most current electrical parameters and mechanical drawings. Ensure compliance with RoHS directives if applicable to your manufacturing requirements.

Selection Notes

Select this component when designing circuits requiring rail-to-rail performance under low supply voltages. Consider its 1MHz bandwidth and 3V/µs slew rate for moderate-speed signal processing tasks. Evaluate the SOT-25 footprint against available PCB space constraints. Compare power consumption metrics against alternative op-amps if battery life is a critical design parameter.

Part Context

This operational amplifier belongs to Rohm's family of low-voltage, general-purpose amplifiers. It complements other devices in the series offering similar electrical characteristics but different packaging options. The BU4220 series is engineered to replace higher voltage legacy components in modern portable electronics, providing improved efficiency and signal integrity in compact form factors.

Replacement Considerations

Consult official substitution guides for direct pin-compatible alternatives. Verify that any substitute maintains rail-to-rail input/output capabilities and similar bandwidth specifications. Ensure the replacement component supports the same 1.8V minimum supply voltage requirement.