HCPL-7800A

Instrumentation, Op Amps, Buffer Amps Overview

The HCPL-7800A is a single-channel optically isolated amplifier designed for high-accuracy signal transmission in noisy environments. It operates on a supply voltage range of 4.5 V to 5.5 V and features a 100 kHz bandwidth with 76 dB common-mode rejection ratio (CMRR). The device utilizes advanced Sigma-Delta A/D converter technology and fully differential circuit topology to achieve low nonlinearity and minimal gain drift. It provides 3750 Vrms isolation voltage and is available in an 8-pin DIP package suitable for through-hole mounting.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Advanced Sigma-Delta conversion technology ensures high linearity and stability
• Fully differential circuit topology minimizes noise interference
• High common-mode rejection capability for severe noise conditions
• Compact standard package design facilitates auto-insertion

Instrumentation, Op Amps, Buffer Amps Applications

• Current sensing in electronic motor drives
• Voltage sensing in inverter systems
• Switched mode power supply signal isolation
• General-purpose current monitoring applications

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix code (e.g., -300E, -500E) against the datasheet to confirm temperature rating and certification compliance. Ensure the selected variant matches the required operating temperature range and safety approvals such as UL or CSA before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high accuracy and stability are required under severe electrical noise. Consider the 100 kHz bandwidth limit for signal frequency requirements. Verify that the system can accommodate the specified 4.5 V to 5.5 V dual supply voltage constraints.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the HCPL-7800A series of optically isolated amplifiers manufactured by Broadcom Limited. It is categorized under optocouplers and specifically designed for precision analog signal isolation where traditional transformers or magnetic isolators may fail due to noise or size constraints.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check for direct pin-compatible alternatives within the same Broadcom isolation amplifier family. Verify that any substitute maintains the same 3750 Vrms isolation rating and 100 kHz bandwidth specifications.