EL1527CREZ

Overview

The EL1527CREZ is a high-speed, monolithic current feedback amplifier manufactured by Elantec (now part of Renesas Electronics). It features a wide bandwidth and fast settling time, designed for applications requiring superior signal fidelity. The device utilizes an advanced complementary bipolar process to achieve performance metrics that exceed conventional operational amplifiers at given gains. Key electrical characteristics include a -3dB bandwidth of 150MHz at a closed-loop gain of +20, a rise/fall time of 2.5ns, and a settling time to 0.1% within 10ns. It operates with a supply current of 15mA and includes a disable/enable feature that reduces power consumption to 1.5mA when disabled.

Feature Summary

• Current-mode feedback architecture provides wider bandwidth at specific gains compared to voltage-feedback amplifiers.
• Integrated disable/enable control allows for power-down modes and analog multiplexing capabilities.
• Extremely linear phase response ensures minimal deviation from linearity, preserving signal integrity.
• High drive capability enables the direct driving of capacitive loads without stability issues.

Applications

• Flash Analog-to-Digital Converter (ADC) input stages
• Digital communication system signal conditioning
• High-speed Digital-to-Analog Converter (DAC) output buffers

Procurement Notes

Verify the manufacturer designation carefully, as Elantec was acquired by Intersil, which subsequently became part of Renesas Electronics. Ensure the ordering suffix matches the required package type and temperature range. Confirm RoHS compliance status if environmental regulations apply to the target assembly. Cross-reference the datasheet revision to ensure pinout and electrical specifications have not changed in later updates.

Selection Notes

Select this component when application requirements demand high slew rate and wide bandwidth independent of noise gain. It is suitable for designs where settling time accuracy is critical, such as in sample-and-hold circuits. Consider the 15mA supply current against thermal constraints. Compare against voltage-feedback alternatives only if lower quiescent current is prioritized over speed.

Part Context

The EL1527 belongs to a family of wide-bandwidth amplifiers that also includes the EL2071 and EL2171 models. These devices share similar internal architectures based on current feedback principles. The EL1527 specifically addresses needs for high-speed signal processing in digital systems. Its design focuses on maintaining linearity and speed in demanding analog front-end applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Renesas or Intersil replacement guides for equivalent current feedback amplifiers with matching pinouts and electrical specifications.