HCPL-7840#300

Instrumentation, Op Amps, Buffer Amps Overview

The HCPL-7840-300E is a single-channel optically isolated amplifier manufactured by Broadcom Limited. It operates on a dual power supply ranging from 4.5 V to 5.5 V and features an input offset voltage of 300 µV. The device provides a gain of 18.48 dB and draws a typical operating supply current of 15.5 mA. It is housed in an 8-pin DIP package designed for surface mount installation.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Provides electrical isolation between high-voltage circuits and low-voltage control systems using optical transmission technology.
• Amplifies analog signals with high precision, suitable for accurate feedback loops in sensitive applications.
• Features low input offset voltage characteristics to maintain signal integrity across the isolation barrier.

Instrumentation, Op Amps, Buffer Amps Applications

• Motor drive current sensing
• Industrial process control systems
• Power supply feedback loops

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix against official documentation to confirm package type and RoHS compliance status. Ensure the ordering code matches the required mounting style, as variations exist between through-hole and surface-mount versions within the same family. Cross-reference datasheet revisions to confirm pinout consistency before finalizing procurement orders.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high-speed analog isolation is required without magnetic interference. Compare input offset voltage specifications against other variants in the series to ensure adequate accuracy for the target application. Confirm that the operating temperature range meets the environmental requirements of the deployment site.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the HCPL series of optically isolated amplifiers produced by Broadcom. These components utilize sigma-delta modulation and optical coupling to transfer analog signals across an isolation barrier. The series is widely recognized for its robustness in electrically noisy environments common in industrial and automotive sectors.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

HCPL-7840-000E: Through-hole version with higher input offset voltage (2 mV). HCPL-7840-500E: Tape and reel packaging variant. Verify pin compatibility and parameter differences before substitution.