RS621KXF

Overview

The RS621KXF is a single-channel CMOS operational amplifier manufactured by Runic Technology, housed in an SOT-23-5 surface-mount package. It operates within a supply voltage range of 2.5 V to 5.5 V and draws a typical supply current of 700 µA. Key electrical specifications include a gain-bandwidth product of 7 MHz, a slew rate of 3.7 V/µs, and an input bias current of 1 pA. The device features a maximum input offset voltage of 1.5 mV and supports rail-to-rail output swing. It is rated for operation across an extended temperature range from -40°C to +125°C.

Feature Summary

• CMOS architecture providing low power consumption with high input impedance
• Rail-to-rail output capability for maximizing dynamic range
• Low input offset voltage ensuring precision signal amplification
• Extended industrial temperature rating for harsh environment reliability

Applications

• Industrial control systems requiring precise analog signal conditioning
• Medical equipment utilizing low-power sensor interfaces
• Security monitoring devices needing reliable signal buffering
• Instrumentation applications demanding high input impedance

Procurement Notes

Verify the specific ordering suffix and manufacturer part number against official Runic Technology documentation before procurement. Confirm compliance with RoHS3 standards and moisture sensitivity level (MSL 3) requirements for your assembly process. Ensure the selected packaging format matches your production line capabilities. Cross-reference datasheet parameters with your design constraints to guarantee performance compatibility.

Selection Notes

Select this component when a single-channel amplifier with rail-to-rail output is required in a compact SOT-23-5 footprint. The low supply current makes it suitable for battery-operated or energy-efficient designs. Verify that the 7 MHz bandwidth and 3.7 V/µs slew rate meet your signal frequency and speed requirements. Consider the 1 pA input bias current for high-impedance source applications.

Part Context

This component belongs to the Runic Technology RS62x series of CMOS operational amplifiers. The series includes variants optimized for different circuit counts and package types. These amplifiers are designed for general-purpose analog signal processing tasks, offering a balance between power efficiency and performance metrics suitable for consumer and industrial electronics.

Replacement Considerations

Consult official substitution guides for compatible single-channel CMOS op-amps in SOT-23-5 packages. Verify pinout compatibility and electrical parameter equivalence before replacing the RS621KXF with alternative components from other manufacturers.