BD7541SG-TR

Overview

The BD7541SG-TR is a single-channel CMOS operational amplifier from ROHM Semiconductor, designed for high-voltage applications with an operating supply voltage range of +5V to +14.5V (single) or ±2.5V to ±7.25V (split). It features input and output full-swing capabilities, low supply current of 170µA typical at 5V, and extremely low input bias current of 1pA typical. The device operates within an extended temperature range of -40°C to +105°C and is housed in a compact SSOP5 package.

Feature Summary

• Operates with high supply voltages up to 14.5V while maintaining low power consumption
• Provides full-signal swing capability at both the input and output terminals
• Features ultra-low input bias current suitable for high-impedance signal sources

Applications

• Sensor Amplifier
• Industrial Equipment
• Consumer Equipment

Procurement Notes

Verify that the specific part number BD7541SG-TR matches the required extended temperature rating (-40°C to +105°C), as the standard BD7541G variant only supports up to +85°C. Confirm the SSOP5 packaging and tape-and-reel delivery format align with manufacturing requirements. Ensure the application does not involve automotive use, as this product is classified as standard grade and is explicitly not recommended for vehicle equipment.

Selection Notes

Select this component when a wide dynamic voltage range is required without sacrificing low power efficiency. The expanded thermal tolerance makes it suitable for environments exceeding standard industrial limits. Consider the trade-off between the moderate slew rate and the benefit of rail-to-rail performance. Verify that the single-channel configuration meets the circuit design needs compared to dual-channel alternatives.

Part Context

This component belongs to the BD7541/BD7542 family of high-voltage CMOS operational amplifiers. The 'SG' suffix specifically denotes the version with an expanded operating temperature range extending to +105°C, distinguishing it from the standard 'G' series limited to +85°C. The '-TR' suffix indicates the unit is supplied in embossed tape and reel packaging for automated surface-mount assembly.

Replacement Considerations

The BD7541G-TR serves as a direct substitute if the application environment remains within the -40°C to +85°C range.