BD7542F-E2

Overview

The BD7542F-E2 is a dual-channel, low-power operational amplifier manufactured by ROHM Semiconductor. It operates within a supply voltage range of +5 V to +14.5 V (single supply) or ±2.5 V to ±7.25 V (dual supply). Key electrical parameters include a gain-bandwidth product of 600 kHz, a slew rate of 300 mV/µs, and an input bias current of 1 pA. The device delivers a typical output current of 4 mA per channel with a maximum input offset voltage of 9 mV. It features full input and output swing capabilities and is housed in an SOP-8 package.

Feature Summary

• Supports high-voltage operation up to 14.5 V single supply
• Provides full input and output voltage swing capability
• Features ultra-low input bias current for minimal signal loading
• Includes built-in phase compensation capacitors

Applications

• Battery-powered instrumentation circuits
• Signal conditioning for sensor interfaces
• General-purpose analog processing in portable devices

Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the SOP-8 package dimensions match the target PCB footprint. Confirm that the operating temperature range of -40°C to +85°C meets the environmental requirements of the final assembly. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a dual-channel op amp requires high-voltage tolerance without external level shifting. It is suitable for applications prioritizing low quiescent current over high-speed performance. Compare the 600 kHz bandwidth against system signal frequencies to ensure adequate gain margin. Consider the 4 mA output drive capability for load requirements before choosing over higher-current alternatives.

Part Context

This device belongs to the BD7542 family of CMOS operational amplifiers designed for high-voltage, low-power applications. It integrates two independent amplifier channels on a single chip, offering a compact solution compared to discrete implementations. The series is characterized by its ability to operate directly from standard battery voltages while maintaining precision through low offset voltage and bias current specifications.

Replacement Considerations

Check for direct pin-compatible substitutes within the same ROHM family, such as the BD7541F-E2 for single-channel needs. Verify that alternative parts maintain the 14.5 V maximum supply rating and similar bias current characteristics. Ensure any replacement supports the required SOP-8 package and industrial temperature range.