BD87581YG-CTR

Overview

The BD87581YG-CTR is a single-channel CMOS operational amplifier from ROHM Semiconductor, designed for automotive applications. It features rail-to-rail input and output capabilities with a wide operating voltage range of 4V to 14V. Key electrical parameters include a gain-bandwidth product of 4 MHz, a slew rate of 3.5 V/µs, and an input bias current of 1 pA. The device operates within a temperature range of -40°C to 125°C and is AEC-Q100 qualified. It offers high EMI immunity and low power consumption, making it suitable for sensor amplifiers and engine control units.

Feature Summary

• High electromagnetic interference (EMI) immunity for robust automotive performance
• Rail-to-rail input and output operation across the full supply voltage range
• CMOS technology ensuring low input bias current and low power consumption
• AEC-Q100 qualification for automotive grade reliability

Applications

• Sensor amplifiers in automotive systems
• Engine control units (ECU)
• Electric Power Steering (EPS) systems
• Anti-lock Braking Systems (ABS)

Procurement Notes

Verify the specific datasheet revision and any Product Change Notices (PCN) prior to implementation, as specifications may be updated without changes to electrical characteristics. Confirm package availability and lead times directly with authorized distributors or the manufacturer. Ensure compliance with RoHS3 standards and check for functional safety support requirements if integrating into safety-critical automotive architectures.

Selection Notes

Select this component when high EMI tolerance and rail-to-rail signal integrity are required in automotive environments. The 4 MHz bandwidth and 3.5 V/µs slew rate suit moderate-speed signal conditioning tasks. Compare against the BD87521YG-CTR for higher output drive capabilities or the BD87582YFVM-CTR for dual-channel configurations. Ensure the 4V minimum supply voltage aligns with the system's power architecture.

Part Context

This part belongs to the BD8758x EMARMOUR™ series of automotive operational amplifiers. The series is characterized by ultra-high EMI tolerance and rail-to-rail I/O, specifically developed for EV/HEV engine systems and车载 sensor electronics. It complements other ROHM automotive linear ICs like the BD87B46 voltage detectors and BD7281 high-speed op-amps.

Replacement Considerations

Direct pin-compatible substitutes within the same family include the BD87582YFVM-CTR (dual channel). For single-channel replacements with different performance profiles, consider the BD87521YG-CTR (higher output drive) or BD7281YG-C (higher speed/lower noise). Verify that alternative parts meet the same AEC-Q100 Grade 1 and functional safety support criteria.