BD77502FVM-TR

Overview

The BD77502FVM-TR is a dual-channel CMOS operational amplifier from ROHM Semiconductor, housed in an MSOP8 package. It features EMARMOUR technology for high EMI immunity and Nano Cap integration to prevent oscillation with capacitive loads. The device operates on a single supply voltage ranging from 7V to 15V. Key electrical specifications include a typical gain-bandwidth product of 8 MHz, a slew rate of 10 V/µs, and an input bias current of 0.001 nA. It supports ground sensing inputs and outputs.

Feature Summary

• EMARMOUR technology provides enhanced resistance to electromagnetic interference (EMI).
• Nano Cap integration ensures stability without oscillation when driving output capacitance in the nanofarad range.
• CMOS architecture enables operation with ground-sense inputs and outputs.
• High conversion rate and low input bias current support precision sensor applications.

Applications

• Sensor amplifiers
• General-purpose analog signal processing
• Circuits requiring high EMI tolerance

Procurement Notes

Verify the specific suffix -TR indicates tape and reel packaging configuration. Confirm RoHS compliance status through official datasheets or manufacturer declarations. Ensure the component meets the required operating temperature range of -40°C to +85°C for the intended application environment. Check for any automotive qualification restrictions as this is a standard-grade product not recommended for vehicle use.

Selection Notes

Select this component when high EMI immunity is critical for system reliability. The integrated Nano Cap feature simplifies design by eliminating the need for external compensation components typically required to stabilize op-amps with large output capacitors. The wide supply voltage range allows flexibility in power distribution networks. Consider the 8 MHz bandwidth and 10 V/µs slew rate for medium-speed signal conditioning tasks.

Part Context

This part belongs to ROHM's EMARMOUR series, designed specifically to address noise sensitivity issues in modern electronic systems. The BD77502 variant integrates two independent amplifier circuits within a compact MSOP8 footprint. It complements other high-voltage CMOS op-amps in the family, such as the BD7542, but offers superior noise immunity characteristics suitable for noisy industrial environments.

Replacement Considerations

Direct substitutes may include other dual-channel CMOS op-amps with similar EMI protection features. Verify pin compatibility and electrical parameters such as GBW and slew rate before substitution. Ensure the replacement also supports the 7V to 15V supply range and ground-sense capabilities.