EL2126CS-T13

Overview

The EL2126CS-T13 is an ultra-low noise, wideband monolithic operational amplifier manufactured by Renesas Electronics Corporation. It utilizes a proprietary complementary bipolar process and operates within a supply voltage range of ±2.5V to ±15V (single supply +5V to +30V). The device features a typical input offset voltage of 200µV, a supply current of 4.7mA at ±5V, and a -3dB bandwidth of 100MHz at a gain of 10. It is housed in an 8-lead Small Outline Integrated Circuit (SOIC) package.

Feature Summary

• Ultra-low noise performance with 1.3nV/√Hz voltage noise density
• Wideband operation with high slew rate capabilities
• Low power consumption suitable for multi-channel systems
• Stable for gains of 10 and greater using traditional voltage feedback

Applications

• Ultrasound input amplifiers
• Wideband instrumentation
• Communication equipment
• AGC and PLL active filters
• Wideband sensors

Procurement Notes

Verify the specific ordering suffix T13 indicates tape and reel packaging for the 8-lead SOIC variant. Confirm RoHS compliance status as standard versions may differ from Pb-free designations. Ensure the manufacturer designation aligns with current Renesas Electronics Corporation documentation rather than legacy Intersil references.

Selection Notes

Select this component for applications requiring high-speed signal amplification with minimal noise addition. It is appropriate for designs where low power dissipation is critical alongside wide bandwidth. Verify that the required closed-loop gain meets the stability requirement of 10 or greater without external compensation networks.

Part Context

This part belongs to the EL2126 family of ultra-low noise amplifiers. The CS-T13 designation specifically identifies the 8-lead SOIC package configuration supplied in a 13-inch tape and reel format. The device is fabricated using Elantec's proprietary complementary bipolar process technology.

Replacement Considerations

Public confirmed substitute part numbers: LM7121IM/NOPB, LM7121IMX/NOPB.

FAQ

What is the minimum stable gain for the EL2126?

The EL2126 is designed to be stable for gains of 10 and greater. External compensation can allow operation at lower gains.

Can the EL2126 operate on a single supply?

Yes, it can operate from +5V to +30V on a single supply, though the input voltage range must be respected relative to the negative rail.