BA3474F-E2

Overview

The BA3474F-E2 is a high-speed operational amplifier manufactured by ROHM Semiconductor. It features four channels within a single package, designed for applications requiring rapid signal processing. The device operates with a supply voltage range of 3V to 36V in single-supply mode or ±1.5V to ±18V in dual-supply mode. Key electrical specifications include a gain-bandwidth product of 4 MHz and a slew rate of 10 V/µs. Input characteristics are defined by an input offset voltage of 1 mV and an input bias current of 100 nA. Each channel can deliver an output current of up to 30 mA. The component functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• High-speed operation with a 10 V/µs slew rate and 4 MHz gain-bandwidth product
• Wide single-supply voltage capability ranging from 3V to 36V
• Four-channel configuration integrated into a compact SSOP-B14 package
• Ground-sense input functionality allowing operation near the negative rail

Applications

• Full DC brushless fan control circuits
• General-purpose high-speed analog signal processing
• Industrial control systems requiring wide supply voltage tolerance

Procurement Notes

Verify the specific suffix designation carefully during procurement. The source data indicates the BA3474FV-E2 variant is Not Recommended for New Designs (NRND). Confirm whether the exact BA3474F-E2 part number is actively supported or if the pin-compatible BA3474FV-E2 is the intended reference. Ensure compatibility with the required SSOP-14 or SOP-8 packaging format before finalizing orders.

Selection Notes

Select this component when multiple high-speed amplification channels are required in a space-constrained design. The wide supply voltage range makes it suitable for both low-voltage and industrial-grade power rails. Consider the 30 mA output current capability for direct driving loads without additional buffering stages. Verify thermal management requirements given the operating temperature limits.

Part Context

This component belongs to the BA3474 series of high-speed ground-sense operational amplifiers. It is distinct from the BA3472 series, which offers two channels, and the BA3404 series, which provides lower speed performance. The BA3474 series is characterized by its ability to handle fast transient signals while maintaining stability across a broad voltage spectrum.

Replacement Considerations

Public confirmed substitute part numbers: BA3474FV-E2.