EL2227CS-T7

Overview

The EL2227CS-T7 is a dual, very low noise voltage feedback operational amplifier manufactured by Renesas Electronics Corporation. It features a typical supply current of 4.8mA per amplifier and operates within a supply voltage range of ±2.5V to ±12V. The device provides a -3dB bandwidth of 115MHz at a gain of +2 and maintains stability for gains greater than or equal to 2. Key electrical specifications include an input offset voltage of 3mV, an open-loop gain of 87dB, and a slew rate of 50V/µs. The component is housed in an 8-lead SOIC package.

Feature Summary

• Dual-channel architecture with exceptionally low voltage noise density of 1.9nV/√Hz and current noise density of 1.2pA/√Hz
• High-speed performance characterized by a 115MHz -3dB bandwidth and 50V/µs slew rate
• Voltage feedback topology ensuring stability at gains of 2 or higher
• Low power consumption with a supply current of approximately 4.8mA per amplifier

Applications

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

Procurement Notes

Verify the specific ordering suffix '-T7' corresponds to tape and reel packaging requirements before procurement. Confirm that the manufacturer designation aligns with Renesas Electronics Corporation standards. Ensure compliance with RoHS directives and lead-free material specifications as defined in the official datasheet documentation.

Selection Notes

Select this component for applications requiring high-speed signal processing with minimal noise introduction. The voltage feedback topology is suitable for circuits where capacitor placement in the feedback path is necessary, such as active filters or integrators. Evaluate thermal dissipation constraints based on the SOIC package characteristics when operating near maximum junction temperatures.

Part Context

This part belongs to the EL2227 series of dual, very low noise amplifiers designed primarily for line receiving applications in ADSL and HDSLII designs. The series includes variants available in both MSOP and SOIC packages. The product utilizes a proprietary high-speed complementary bipolar process to achieve its specified performance metrics.

Replacement Considerations

Consult official manufacturer documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical parameter alignment before integrating alternative components into existing designs.