RS8522XK

Overview

The RS8522XK is a dual-channel CMOS operational amplifier manufactured by Runic Technology. It features an input offset voltage of 1.5 µV and an input bias current of 1 pA. The device operates within a supply voltage range of 2.5 V to 5.5 V, consuming 60 µA per two channels. Key electrical parameters include a gain-bandwidth product of 350 kHz, a slew rate of 0.17 V/µs, and a rail-to-rail output capability. It is housed in an 8-SOIC package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Utilizes auto-zero techniques to achieve low offset voltage and near-zero drift over time and temperature.
• Provides rail-to-rail input and output swing capabilities for maximum dynamic range.
• Offers high gain, common-mode rejection ratio (CMRR), and power supply rejection ratio (PSRR) of 130 dB.
• Requires no external capacitors for stability.

Applications

• Precision sensor signal conditioning
• Battery-powered instrumentation systems
• Low-noise data acquisition circuits

Procurement Notes

Verify the specific suffix 'XK' against the manufacturer's official datasheet to confirm pinout and electrical tolerances. Ensure the procurement channel provides documentation confirming RoHS3 compliance and the correct moisture sensitivity level (MSL 3). Cross-reference the 8-SOIC package dimensions with the official mechanical drawing to ensure compatibility with the intended PCB footprint.

Selection Notes

Select this component when designing circuits requiring ultra-low offset voltage and minimal drift without external trimming. The CMOS architecture and low quiescent current make it suitable for battery-operated applications where power efficiency is critical. Verify that the required bandwidth and slew rate meet the signal processing needs, as the 350 kHz gain-bandwidth product limits high-frequency performance.

Part Context

The RS8522XK belongs to the RS852x series of zero-drift, rail-to-rail I/O CMOS operational amplifiers. This family includes single, dual, quad, and shutdown variants designed for high-precision applications. The series leverages auto-zero technology to minimize offset errors, distinguishing it from standard CMOS op-amps that may exhibit higher drift characteristics over temperature variations.

FAQ

Does the RS8522XK require external compensation capacitors?

No, the RS8522XK does not require external capacitors for stability.

What is the typical input offset drift specification?

The input offset drift is specified as 0.005 µV/°C.