RS8552XK

Overview

The RS8552XK is a dual-channel, zero-drift CMOS operational amplifier manufactured by RUNIC. It features rail-to-rail input and output capabilities with a gain-bandwidth product of 350kHz and a slew rate of 0.17 V/μs. The device operates on supply voltages ranging from 2.5V to 5.5V. Key electrical specifications include a maximum input offset voltage of 1μV, an input offset drift of 0.005μV/°C, and a low noise performance of 3.2μVp-p in the 0.01Hz to 10Hz frequency range. It offers high gain, CMRR, and PSRR of 130dB, with a power consumption of 60μA per op amp.

Feature Summary

• Utilizes auto-zero techniques to achieve near-zero offset drift over time and temperature
• Provides rail-to-rail input and output swing for maximum dynamic range
• Delivers ultralow noise and offset characteristics suitable for precision applications

Applications

• Precision sensor signal conditioning
• Medical instrumentation front-ends
• High-resolution data acquisition systems

Procurement Notes

Verify the specific suffix 'XK' against the official RUNIC datasheet to confirm package type and tape/reel specifications. Ensure the supplier provides documentation confirming the component meets the stated zero-drift and rail-to-rail I/O parameters. Cross-reference the manufacturer's part number with authorized distributor listings to validate authenticity and traceability before procurement.

Selection Notes

Select this component when ultra-low offset voltage and minimal drift are critical requirements. The dual-channel configuration allows for space-efficient designs compared to single-channel alternatives. Consider the 350kHz bandwidth and 0.17 V/μs slew rate to ensure adequate speed for the target application. Verify that the 2.5V to 5.5V supply range aligns with the system power architecture.

Part Context

The RS8552XK belongs to the RS852x series of precision amplifiers from RUNIC. This family includes single, dual, quad, and shutdown variants designed for high-accuracy analog signal processing. The series leverages CMOS technology combined with auto-zero architecture to deliver superior DC precision without requiring external compensation capacitors.

Replacement Considerations

Consult the official RUNIC datasheet for direct pin-compatible substitutes within the RS852x family, such as the RS8521 or RS8524, depending on channel count and shutdown functionality needs. External cross-references should be validated against electrical specifications to ensure compatibility.