BU7441SG-TR

Overview

The BU7441SG-TR is a low-power ground sense operational amplifier manufactured by ROHM Semiconductor. It features a single channel with a gain-bandwidth product of 600 kHz and a slew rate of 300 mV/us. The device operates on a supply voltage ranging from 1.7 V to 5.5 V, consuming only 50 uA of current. Key electrical specifications include an input offset voltage of 1 mV, input bias current of 1 pA, and an output current capability of 6 mA. It provides a common-mode rejection ratio of 45 dB and power supply rejection ratio of 60 dB. The component is housed in an SSOP-5 package and supports surface mount installation.

Feature Summary

• Ground sense input and full swing output capabilities
• Low voltage operation with minimal current consumption
• Integrated phase compensation capacitor for stability

Applications

• Portable battery-powered devices
• Sensor signal conditioning circuits
• Low voltage analog processing systems

Procurement Notes

Verify the specific suffix against official manufacturer documentation to ensure correct temperature range and packaging configuration. Confirm RoHS compliance status through the latest datasheet revision. Cross-reference the part number with authorized distributors to validate authenticity and availability channels.

Selection Notes

Select this component for applications requiring ground-referenced input signals and rail-to-rail output performance under low voltage constraints. Ensure the design accommodates the specified operating temperature range and supply voltage limits. Evaluate the trade-off between the low quiescent current and the required bandwidth for the target application frequency.

Part Context

This device belongs to the BU7441G series of CMOS operational amplifiers designed for low power efficiency. The SG variant typically denotes an extended industrial temperature range compared to standard versions. It serves as a specialized solution for portable electronics where power conservation and single-supply compatibility are critical design parameters.

Replacement Considerations

Consult official manufacturer substitution guides for verified alternatives. Ensure any replacement matches the SSOP-5 footprint and electrical characteristics. Verify that substitute parts maintain the same ground sense input and full swing output functionality.

FAQ

What is the input voltage range for the BU7441SG-TR?

The input voltage range extends from VSS to VDD minus 1.2 volts, supporting ground sensing capabilities.

Does the BU7441SG-TR support automotive applications?

No, this product is classified as a standard-grade component and is not recommended for use in automotive equipment.