BU7255HFV-TR

Overview

The BU7255HFV-TR is a single-channel, low-voltage, high-speed CMOS operational amplifier manufactured by ROHM Semiconductor. It operates within a supply voltage range of 2.4 V to 5.5 V and consumes a typical quiescent current of 540 µA per channel. The device features a gain-bandwidth product of 4 MHz and a slew rate of 3.4 V/µs. Key electrical characteristics include a maximum input offset voltage of 1 mV, an input bias current of 1 pA, and an output current capability of 4 mA. It provides full-swing output operation from VSS+0.1 V to VDD-0.1 V and is housed in a compact HVSOF-5 surface-mount package.

Feature Summary

• Full-swing output capability allowing signal swing from VSS+0.1 V to VDD-0.1 V
• Ultra-low input bias current of 1 pA for minimal loading effects
• Integrated phase compensation capacitor for stability without external components
• Built-in electrostatic protection circuit with ±4000 V human body model tolerance

Applications

• Low voltage portable electronic devices requiring high-speed signal processing
• Battery-powered instrumentation utilizing single-supply operation
• General-purpose analog signal conditioning circuits
• Video signal buffering in consumer electronics

Procurement Notes

Verify the specific suffix (TR) indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the HVSOF-5 footprint matches the PCB layout design. Check for any automotive qualification restrictions as this is a standard-grade component not recommended for vehicle use.

Selection Notes

Select this component for applications requiring full-signal swing near ground and supply rails under low voltage conditions. The 1 pA input bias current makes it suitable for high-impedance sensor interfaces. Compare against other BU7255 family members if different pinouts or performance metrics are required. Ensure the 4 MHz bandwidth meets the system's frequency response requirements.

Part Context

This part belongs to the BU7255HFV series of low-voltage high-speed CMOS operational amplifiers. It is distinct from the BU7291 family which shares similar input characteristics but may differ in packaging or specific electrical limits. The BU7255 series is designed for monolithic integration of phase compensation, simplifying circuit design compared to discrete solutions.

FAQ

Does the BU7255HFV-TR support shutdown functionality?

No, the device does not feature a shutdown pin or function; it operates continuously when powered.

What is the input voltage range for this amplifier?

The input voltage range extends from VSS to VDD, allowing common-mode signals to reach the supply rails.