EL2227CS

Overview

The EL2227CS is a dual, very low noise voltage feedback operational amplifier manufactured by Intersil. It features a -3dB bandwidth of 115MHz at a gain of +2 and a slew rate of 50 V/us. The device operates with supply voltages ranging from ±2.5V to ±12V (5V to 24V single) and consumes 13mA of operating current. Key electrical parameters include an input voltage noise density of 1.9 nV/√Hz, input current noise of 1.2 pA/√Hz, 87 dB voltage gain, 60 dB CMRR, 3 mV input offset voltage, and 9 uA input bias current. It is housed in an SOIC-8 package.

Feature Summary

• Dual channel architecture designed for line receiving applications in ADSL and HDSLII designs
• Very low noise specifications suitable for detecting very low amplitude signals
• Gain-of-2 stable operation with high bandwidth performance
• Low power dissipation characteristics with minimal supply current consumption

Applications

• ADSL receivers
• HDSLII receivers
• Ultrasound input amplifiers
• Wideband instrumentation
• Communications equipment

Procurement Notes

Verify the specific suffix against official datasheets, as variations like CSZ or CYZ indicate different packages such as SOIC-8 or MSOP-8. Confirm RoHS compliance status and moisture sensitivity levels before integration. Check for discontinuation notices or limited availability statuses directly from Renesas or authorized distributors. Ensure the selected variant matches the required thermal and mechanical constraints for the target PCB layout.

Selection Notes

Select this component when designing circuits requiring low noise performance for signal detection in telecommunications or medical ultrasound applications. The dual topology offers space efficiency compared to single-channel alternatives. Verify that the ±2.5V to ±12V supply range aligns with system power rails. Consider the SOIC-8 package dimensions for board space constraints relative to other available package options within the same family.

Part Context

The EL2227C belongs to the EL2227 series of dual very low noise amplifiers. This series includes variants optimized for specific packaging needs while maintaining identical electrical characteristics. The component is part of Intersil's portfolio of high-speed and precision analog solutions, now managed under Renesas Electronics following corporate acquisitions.

Replacement Considerations

Check for direct pin-compatible substitutes within the EL2227 family, such as EL2227CYZ for MSOP packaging. Verify equivalent noise and bandwidth specifications if considering alternative manufacturers.