EL5191CSZ

Overview

The EL5191CSZ is a current feedback amplifier featuring a 1GHz -3dB bandwidth and 9mA supply current. It operates on single or dual supplies from 5V to 10V, providing high performance with low power consumption. The device offers a slew rate of 2800 V/µs and a settling time of 7 ns at 0.1%. Input offset voltage is typically 1 mV with a temperature coefficient of 5 µV/°C. It includes an input voltage noise of 3.8 nV/√Hz and supports output currents up to 120 mA. The component operates over an industrial temperature range of -40°C to +85°C.

Feature Summary

• Current feedback topology maintains relatively constant bandwidth as closed-loop gain increases
• Low power operation with 9mA supply current suitable for battery-powered equipment
• High output drive capability capable of driving 50Ω loads to both rails
• Optimized video performance with low differential gain and phase error specifications

Applications

• Video amplifiers
• Cable drivers
• RGB amplifiers
• Test equipment
• Instrumentation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and lead-free material sets if required by the design. Ensure the selected variant matches the intended pinout and thermal characteristics for the target application environment.

Selection Notes

Select this component for applications requiring high-speed signal processing with minimal power consumption. Consider the EL5192 or EL5193 variants if lower bandwidth or reduced supply current is sufficient for the system requirements. Evaluate PCB layout constraints carefully due to the sensitivity of current feedback amplifiers to parasitic capacitance at the inverting input.

Part Context

The EL5191 series consists of high-speed current feedback operational amplifiers originally manufactured by Intersil Corporation. Following corporate acquisitions, these products are now part of the Renesas Electronics portfolio. The family includes variants such as the EL5191A with enable functionality and other models offering different bandwidth and power trade-offs.

Replacement Considerations

EL5192CSZ

FAQ

How does the current feedback topology affect the bandwidth of the EL5191?

Unlike voltage feedback amplifiers, the EL5191's bandwidth remains relatively constant as the closed-loop gain increases, rather than being constrained by a fixed gain-bandwidth product.

What is the recommended feedback resistor value for optimal performance?

The EL5191 is designed and specified with a feedback resistor (RF) of approximately 250Ω to achieve its rated bandwidth and stability characteristics.