EL2045CS

Overview

The EL2045CS is a low-power, high-speed monolithic operational amplifier built on a complementary bipolar process. It features a gain-bandwidth product of 100MHz at a gain of +2 and a slew rate of 275V/µs while drawing only 5.2mA of supply current. The device operates from dual supplies of ±2V to ±18V or single supplies of 2.5V to 36V. It provides wide output voltage swings, such as ±13.6V with a ±15V supply and 1kΩ load. The amplifier exhibits fast settling times of 80ns to 0.1% for a 10V step and maintains stability at gains of +2 or greater.

Feature Summary

• Gain-of-2 stable design utilizing conventional voltage-feedback topology
• Low power consumption with 5.2mA supply current at ±15V
• Wide operating supply range supporting both dual and single-supply configurations
• High output drive capability suitable for low impedance loads

Applications

• Video amplifiers
• Active filters and integrators
• High speed sample-and-hold circuits
• ADC/DAC buffers
• Pulse and RF amplifiers

Procurement Notes

Verify the specific package variant required, as the EL2045 family includes standard SOIC (EL2045CS) and lead-free RoHS-compliant versions (EL2045CSZ). Confirm that the selected part matches the intended soldering process requirements. Ensure compatibility with the target PCB footprint and thermal management strategy during integration.

Selection Notes

Select this component when a voltage-feedback architecture is preferred over current-feedback types due to feedback network constraints. It is suitable for designs requiring operation on low-voltage single supplies like +5V or +3V. Consider its high output drive capability if driving multiple back-terminated video loads or low-impedance resistive networks without external buffering stages.

Part Context

This component belongs to the EL2045 series of low-power, high-speed operational amplifiers originally developed by Elantec Semiconductor and later acquired by Intersil, which was subsequently integrated into Renesas Electronics. The series is characterized by its complementary bipolar process technology, offering a balance of high bandwidth and low power consumption for general-purpose analog signal processing tasks.

Replacement Considerations

For applications requiring higher output drive or superior video distortion performance, consider the EL2120, EL400, or EL2074 as alternative solutions.