HCPL-7800A#500

Instrumentation, Op Amps, Buffer Amps Overview

The HCPL-7800A#500 is a single-channel optical isolation amplifier manufactured by Broadcom Limited. It utilizes advanced Sigma-Delta (Σ-∆) A/D converter technology and features a fully differential circuit topology for high accuracy and stability. The device operates on dual supply voltages ranging from 4.5V to 5.5V. Key electrical specifications include an input offset voltage of 0.3mV, a gain drift of 0.00025-V/V/°C versus temperature, and a bandwidth of 100kHz. It provides a common-mode rejection ratio of 76dB at VCM = 1000V and maintains a nonlinearity of 0.004%. The component offers an isolation voltage of 3750Vrms and supports an operating temperature range from -40°C to 100°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Advanced Sigma-Delta (Σ-∆) A/D converter technology ensures high precision signal conversion.
• Fully differential circuit topology enhances stability under severe noise conditions.
• High common-mode rejection capability effectively isolates signals in noisy environments.
• Compact DIP-8 package design facilitates auto-insertion during manufacturing.

Instrumentation, Op Amps, Buffer Amps Applications

• Current sensing in electronic motor drives
• Voltage sensing in electronic motor drives
• Inverter current sensing
• Switched mode power supply signal isolation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix matches the required packaging format, as options include reel, cut tape, or MouserReel configurations. Confirm compliance with RoHS directives and safety approvals such as UL 1577 and CSA before procurement. Ensure the selected variant aligns with the intended surface mount or through-hole installation requirements specified in the datasheet.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high accuracy and linearity are required for analog signal isolation in noisy environments. The device is suitable for applications demanding low input offset voltage and minimal gain drift over temperature variations. Consider the 100kHz bandwidth and 3750Vrms isolation rating when designing circuits for motor drives or power supplies requiring robust galvanic isolation.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the HCPL-7800 series of isolation amplifiers designed for general-purpose analog signal isolation. The series leverages sigma-delta modulation to achieve high performance in compact packages. Broadcom manufactures these components to meet stringent industrial standards for safety and reliability in critical infrastructure applications.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult official Broadcom documentation for verified substitute part numbers within the HCPL-7800 family. Ensure any replacement maintains compatibility with the 8-pin DIP package and meets the same isolation voltage and bandwidth specifications.

Instrumentation, Op Amps, Buffer Amps FAQ

What technology does the HCPL-7800A use for signal conversion?

It uses advanced Sigma-Delta (Σ-∆) A/D converter technology combined with a fully differential circuit topology.

What is the maximum isolation voltage rating?

The device provides an isolation voltage of 3750Vrms, certified under UL 1577 and CSA standards.