HCPL-7851#200

Instrumentation, Op Amps, Buffer Amps Overview

The HCPL-7851#200 is a Class H hermetically sealed analog isolation amplifier manufactured by Broadcom Limited. It integrates sigma-delta ADC and DAC technologies for high-reliability signal transmission. Key electrical parameters include a 100 kHz bandwidth, 1500 Vrms isolation voltage, and 69 dB common-mode rejection ratio (CMRR). The device operates on a single 4.5V to 5.5V supply with a typical current of 15.5 mA. It features an 8V/V gain, 600 µV input offset voltage, and -570 nA input bias current. Designed for military-grade environments, it supports a temperature range from -55°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Hermetically sealed ceramic DIP-8 package ensuring reliability in harsh environments
• High-speed optical coupling with 100 kHz bandwidth for precise analog signal isolation
• Integrated sigma-delta modulation architecture for enhanced noise immunity

Instrumentation, Op Amps, Buffer Amps Applications

• Motor controller current sensing
• Variable frequency drive systems
• Industrial automation monitoring
• Military and aerospace instrumentation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix #200 against official Broadcom documentation to confirm packaging or tape-and-reel specifications. Ensure compatibility with MIL-PRF-38534 Class H requirements if mission-critical certification is needed. Cross-reference datasheet revisions to validate parameter consistency. Confirm hermetic seal integrity standards match application environmental constraints before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high-frequency analog isolation exceeding standard optocoupler capabilities is required. The 100 kHz bandwidth suits dynamic motor control applications. Verify that the 1500 Vrms isolation rating meets system safety standards. Consider the hermetic package for long-term stability in extreme temperatures compared to plastic-packaged alternatives.

Instrumentation, Op Amps, Buffer Amps Part Context

Part of the HCPL-7851 series of high-performance analog isolation amplifiers. Designed as a robust solution for replacing traditional transformer-based isolators in sensitive measurement chains. Manufactured under strict quality controls suitable for defense and industrial sectors.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

HCPL-7851#100: Similar hermetic performance; verify pinout and suffix differences. HCPL-7850: Plastic package variant; lower environmental resilience. HCPL-7840: Different bandwidth and gain characteristics; requires circuit redesign.