BD77501G-TR

Overview

The BD77501G-TR is a single-channel CMOS operational amplifier featuring integrated ground detection capabilities and high electromagnetic interference (EMI) immunity. It operates within a wide supply voltage range of 7V to 15V, offering a typical circuit current consumption of 1.3mA per channel. The device exhibits high slew rate characteristics and low input bias current, making it suitable for sensor amplification applications. Its internal circuit design ensures stability without oscillation even when driving output capacitors in the nanofarad range, simplifying system-level design.

Feature Summary

• Integrated ground detection functionality for enhanced system monitoring
• High electromagnetic interference (EMI) tolerance for robust signal integrity
• Stable operation with nanofarad-level output capacitance without oscillation
• Wide operating voltage range supporting diverse power supply configurations

Applications

• Sensor amplifier circuits requiring ground fault detection
• Industrial control systems demanding high EMI resistance
• General-purpose analog signal processing where output capacitance stability is critical

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging configuration during procurement. Confirm that the component status is designated as recommended for new designs, noting any explicit restrictions regarding automotive equipment usage. Ensure compatibility with the SSOP-5 package dimensions and thermal requirements specified in the official datasheet before finalizing supply chain agreements.

Selection Notes

Select this component when ground detection and EMI immunity are primary design constraints alongside standard amplification needs. The wide voltage range accommodates various single-supply architectures. Consider the low input bias current for high-impedance sensor interfaces. Evaluate the trade-off between the higher current consumption compared to ultra-low-power alternatives against the benefits of integrated diagnostic features and stability under capacitive loads.

Part Context

This part belongs to ROHM's series of CMOS operational amplifiers designed for industrial and general-purpose applications. It integrates diagnostic features typically found in separate monitoring ICs, reducing bill-of-materials complexity. The SSOP-5 package provides a compact footprint suitable for space-constrained printed circuit board layouts while maintaining adequate thermal performance for continuous operation within the specified temperature range.

Replacement Considerations

The BD5240G-1 is listed as a similar level replacement with the same package type. Verify functional equivalence regarding ground detection and EMI performance, as electrical parameters may differ. Ensure that the replacement meets all original design specifications for voltage range, current consumption, and stability characteristics before implementing any substitution.