HCPL-7840

Instrumentation, Op Amps, Buffer Amps Overview

The HCPL-7840 is a precision optically isolated amplifier manufactured by Broadcom Limited. It features an 8-pin PDIP package designed for through-hole mounting. The device operates on a supply voltage range of 4.5 V to 5.5 V with a typical operating current of 15.5 mA. Key electrical specifications include an input offset voltage (Vos) of 2 mV and a gain of 18.48 dB. It provides optical isolation with a rated isolation voltage of 3.75 kVrms. The component supports a logic output configuration and functions within a temperature range of -40°C to 100°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Provides galvanic isolation between input and output circuits using optical transmission technology.
• Delivers precise signal amplification with low input offset voltage characteristics.
• Supports high common-mode rejection to maintain signal integrity in noisy environments.
• Compatible with standard DIP-8 through-hole mounting configurations.

Instrumentation, Op Amps, Buffer Amps Applications

• Industrial process control systems requiring isolated sensor interfaces
• Medical equipment needing patient isolation protection
• Power electronics monitoring circuits

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix code (e.g., -000E, -500E) to confirm packaging type and compliance status. Ensure the selected variant matches the required isolation voltage ratings and operating temperature range for the target application environment. Cross-reference datasheet revisions to confirm pinout consistency.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high-precision analog signal isolation is required. Compare input offset voltage and bandwidth requirements against alternative isolation amplifiers. Verify that the 8-pin PDIP footprint fits the PCB layout constraints. Confirm compatibility with the system's supply voltage range of 4.5 V to 5.5 V.

Instrumentation, Op Amps, Buffer Amps Part Context

The HCPL-7840 belongs to the HCPL series of optocouplers produced by Broadcom Limited. It is categorized as an optically isolated amplifier, distinct from standard digital optocouplers due to its linear amplification capabilities. The series is designed for applications demanding high reliability and precise signal transfer across isolation barriers.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The AMC1200BDUB is identified as a comparable alternative in terms of channel count and isolation voltage. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.