BU7242NUX-TR

Overview

The BU7242NUX-TR is a dual general-purpose operational amplifier manufactured by ROHM Semiconductor. It operates on a single supply voltage ranging from 1.8 V to 5.5 V, or split supplies of +/-2.75 V. Key electrical parameters include a gain-bandwidth product of 900 kHz and a slew rate of 400 mV/us. The device draws a typical operating current of 180 uA per channel and provides an output current capability of 10 mA. Input characteristics feature a maximum input offset voltage of 1 mV and an input bias current of 1 pA. Common-mode rejection ratio is specified at 45 dB, with a power supply rejection ratio of 60 dB. It functions within a temperature range of -40 C to +85 C.

Feature Summary

• Supports full amplitude operation for both input and output signals across the supply rail range.
• Features extremely low input bias current characteristic of CMOS technology.
• Integrates internal phase compensation capacitors, eliminating external components.

Applications

• Low voltage signal conditioning circuits
• Battery-powered portable devices
• General purpose analog amplification

Procurement Notes

Verify the specific package type and tape-and-reel quantity against the official datasheet before ordering. Confirm that the application environment remains within the specified operating temperature limits. Ensure supply voltages do not exceed the maximum ratings to prevent device damage. Check for any specific handling requirements related to electrostatic discharge during assembly.

Selection Notes

Select this component when a dual-channel amplifier with low quiescent current is required for battery-operated systems. It is suitable for applications needing rail-to-rail input and output swing without complex external compensation networks. Consider the 900 kHz bandwidth limit for high-speed signal processing tasks where lower frequency performance is acceptable.

Part Context

This part belongs to the BU7242 series of low-voltage CMOS operational amplifiers. The NUX suffix indicates the VSON008x2030 surface-mount package. The TR suffix denotes the taping packaging format. This series is designed for cost-effective, space-constrained designs requiring reliable analog performance in consumer electronics.

Replacement Considerations

Consult official substitution guides for compatible parts. Verify pin compatibility and electrical parameter equivalence before replacing.