EL2228CSZ

Overview

The EL2228CSZ is a dual voltage feedback operational amplifier manufactured by Renesas Electronics Corporation. It features a -3dB bandwidth of 80MHz and a gain-bandwidth product of 40MHz. The device operates with supply voltages ranging from ±2.5V to ±12V, consuming 4.5mA per amplifier. Key electrical specifications include an input offset voltage of 3mV, input bias current of 4.5µA, voltage noise of 4.9nV/√Hz, and current noise of 1.2pA/√Hz. It provides a slew rate of 65V/µs and short circuit current of 180mA. The component is housed in an 8-SOIC package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Dual low-noise architecture designed for processing low voltage waveforms
• Gain-of-1 stability with high output drive capability for low impedance loads
• Wide single-supply operation capability extending up to 28V
• Classical voltage-feedback topology suitable for active filters and integrators

Applications

• ADSL and HDSLII filtering applications
• Ultrasound input amplifiers
• Wideband instrumentation systems
• Communications equipment signal processing
• Wideband sensor interfaces

Procurement Notes

Verify the specific ordering suffix to confirm the package type, as the EL2228 series includes both MSOP and SOIC variants. Confirm RoHS compliance status if required for assembly processes. Check manufacturer documentation for any product change notices or lifecycle updates regarding availability and manufacturing site changes before finalizing procurement plans.

Selection Notes

Select this component when low voltage and current noise are critical requirements for signal integrity. Ensure the application benefits from classical voltage-feedback topology rather than current-feedback alternatives. Verify that the load conditions and power dissipation calculations remain within the safe operating area defined by the thermal resistance of the chosen package variant.

Part Context

This part belongs to the EL2228 family of dual low-noise amplifiers originally developed by Intersil. The EL2228CSZ specifically denotes the lead-free version packaged in an industry-standard 8-lead Small Outline Integrated Circuit (SOIC) format. The 'Z' suffix indicates compliance with environmental standards, while the base model supports various packaging options including tape and reel configurations for automated assembly.

Replacement Considerations

Public confirmed substitute part numbers: AD8512ARZ.