ADEL2020AR

Overview

The ADEL2020AR is a current feedback operational amplifier designed as an improved second source to the EL2020. It features a 20-lead SOIC package and operates within a supply voltage range of ±3.0 V to ±18 V. The device delivers a 90 MHz bandwidth at unity gain, a 500 V/µs slew rate, and a 60 ns settling time to 0.1%. It consumes 6.8 mA quiescent current, reducing to 2.1 mA in power-down mode. Key specifications include 2.9 nV/√Hz input voltage noise, 0.02% differential gain, and 0.04° differential phase.

Feature Summary

• Optimized for high-performance video applications with low differential gain and phase errors.
• Features a high-performance disable function providing break-before-make operation and high input-to-output isolation.
• Offers lower power consumption and higher output drive compared to previous generation devices.
• Capable of driving capacitive loads exceeding 1000 pF directly without oscillation.

Applications

• Video line drivers
• Data acquisition systems
• High-speed signal processing

Procurement Notes

Verify the specific ordering suffix (e.g., -20) against the manufacturer's official documentation to ensure correct package type and temperature rating. Confirm that the component meets RoHS compliance requirements for your region. Check for any recent product change notices or obsolescence announcements from Analog Devices prior to finalizing procurement plans.

Selection Notes

Select this component when a current feedback architecture is required for wide bandwidth and fast settling times. Ensure the application benefits from the integrated disable feature for power management or multiplexing. Verify that the feedback resistor values align with the desired bandwidth and stability characteristics specified in the datasheet.

Part Context

The ADEL2020 series includes variants such as the ADEL2020AN in an 8-lead PDIP package and the ADEL2020AR-20 in a 20-lead SOIC package. All variants share the same electrical characteristics and are intended for industrial temperature ranges from –40 °C to +85 °C.

Replacement Considerations

The ADEL2020AR serves as an improved replacement for the EL2020. No other direct substitute part numbers are documented in the provided source material.

FAQ

How does the ADEL2020 achieve disable functionality?

Pulling Pin 8 to common (0 V) disables the amplifier, resulting in high output impedance and over 50 dB of input-to-output isolation while reducing supply current.

What is the maximum capacitive load the ADEL2020 can drive?

With the appropriate feedback resistor, the ADEL2020 can drive capacitive loads exceeding 1000 pF directly without oscillation.