BU7485G-TR

Overview

The BU7485G-TR is a single-channel, high-speed, low-voltage CMOS operational amplifier manufactured by ROHM Semiconductor. It features input ground detection and full output swing capabilities within a compact SSOP5 package. The device operates on a supply voltage range of 3V to 5.5V with a typical circuit current of 1.5mA per channel. Key electrical specifications include a gain-bandwidth product of 10MHz, a slew rate of 10V/µs, and an input bias current of 0.001nA. It supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Input ground detection capability for extended common-mode voltage range
• Full output voltage swing from VSS to VDD
• High conversion rate suitable for fast signal processing
• Low input bias current for precision applications

Applications

• Portable electronic devices requiring low power consumption
• Sensor interface circuits with ground-referenced inputs
• Battery-powered instrumentation systems
• General-purpose analog signal conditioning
• Low-voltage data acquisition modules

Procurement Notes

Verify the specific ordering suffix and tape-and-reel configuration directly with the manufacturer or authorized distributors before procurement. Confirm that the component status is active and not recommended for new designs if sourcing for long-term production. Ensure compliance with RoHS directives and check for any regional distribution restrictions applicable to the SSOP5 packaged units.

Selection Notes

Select this component when application requirements demand input signals near the negative rail while maintaining high-speed performance. The low supply voltage operation makes it suitable for battery-driven systems where power efficiency is critical. Compare the 10MHz bandwidth and 10V/µs slew rate against alternative op-amps to ensure adequate speed margins for the target signal frequencies and transient responses.

Part Context

This part belongs to the BU7485/BU7486/BU7487 series of CMOS operational amplifiers designed for low-voltage, high-speed applications. The series is characterized by its ability to detect input voltages at ground potential while delivering full output swing. It serves as a standard-grade solution for portable equipment, distinct from automotive-grade variants which are explicitly excluded from this product line.

Replacement Considerations

The BU7485SG is the extended temperature range variant of this component. Verify pin compatibility and electrical parameter alignment when substituting. No other direct cross-reference parts are officially confirmed in the provided documentation.

FAQ

What is the input voltage range for the BU7485G-TR?

The input voltage range extends from VSS to VDD minus 1.4V, supporting ground detection capabilities.

Is this component suitable for automotive applications?

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

What is the typical power supply current per channel?

The typical circuit current is 1.5mA per channel under standard operating conditions.