BD7281YG-CTR

Overview

The BD7281YG-CTR is a single-channel automotive-grade CMOS operational amplifier manufactured by ROHM Semiconductor. It features a gain-bandwidth product of 7 MHz, a slew rate of 10 V/µs, and an input offset voltage maximum of 1.6 mV. The device operates on a supply voltage range of 2.5 V to 5.5 V with a typical circuit current of 1.7 mA per channel. It provides a typical output current of 50 mA and exhibits low input bias current of 0.0005 nA. Key performance metrics include a common-mode rejection ratio of 100 dB and power supply rejection ratio of 100 dB. The component is housed in an SSOP5 package and supports an operating temperature range from -40°C to 125°C.

Feature Summary

• Integrated Nano Cap™ technology ensures stable operation even when capacitive loads are connected at the output, eliminating oscillation risks without external compensation components.
• Automotive qualification compliant with AEC-Q100 standards, supporting functional safety analysis for vehicle applications.
• Rail-to-rail input and output capability allows signal swing close to both supply rails, maximizing dynamic range in low-voltage systems.

Applications

• Sensor signal conditioning in automotive environments
• Battery-powered equipment requiring stable capacitive drive
• Industrial control circuits demanding high CMRR

Procurement Notes

Verify the specific suffix 'CTR' corresponds to the tape-and-reel packaging format as documented in official datasheets. Confirm that the SSOP5 package dimensions match the reference code SOT23-5 footprint requirements for your PCB layout. Ensure the selected variant meets the required AEC-Q100 grade for your target automotive or industrial application specifications.

Selection Notes

Select this component when rail-to-rail performance and capacitive load stability are critical. The Nano Cap™ feature simplifies design by removing the need for isolation resistors typically required with standard op-amps driving capacitive loads. Its automotive grade and wide temperature range make it suitable for harsh environments where reliability under varying thermal conditions is essential.

Part Context

This part belongs to ROHM's Nano Cap™ series of operational amplifiers, designed specifically to address stability issues associated with capacitive loading. The BD7281 variant represents a single-channel configuration within this family, offering high-speed performance and low noise characteristics tailored for precision analog signal processing tasks in modern electronic systems.

Replacement Considerations

BD7281G-LBTR is listed as a similar level replacement with the same package type.