ADEL2020ARZ-20

Overview

The ADEL2020ARZ-20 is a high-speed current feedback operational amplifier designed as an improved second source to the EL2020. It operates within a supply voltage range of ±3 V to ±18 V and supports an industrial temperature range of –40 °C to +85 °C. Key electrical specifications include a 90 MHz bandwidth at unity gain, a 500 V/µs slew rate, and a 60 ns settling time to 0.1%. The device features low input voltage noise of 2.9 nV/√Hz and offers a power-down mode with a quiescent current of 2.1 mA. It provides a high-performance disable function with 100 ns turn-off time and includes offset nulling capabilities.

Feature Summary

• Optimized for video applications with differential gain of 0.02% and differential phase of 0.04°
• Features a high-performance disable function providing break-before-make operation and high input-to-output isolation
• Offers lower power consumption compared to competitors while maintaining higher output drive capability
• Includes dedicated offset null pins for trimming input offset voltage

Applications

• Video line drivers
• High-speed data acquisition systems
• Signal conditioning circuits requiring wide bandwidth

Procurement Notes

Verify that the component matches the specific package type required for the design, either the 8-Lead PDIP or the 20-Lead SOIC. Confirm the operating temperature range aligns with the industrial specification of –40 °C to +85 °C. Ensure the ordering suffix corresponds to the correct reel or tube packaging format if applicable. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm authenticity and revision status.

Selection Notes

Select this amplifier when high bandwidth and fast settling times are critical for signal integrity. Consider the current feedback architecture, which requires specific feedback resistor values to maintain stability and bandwidth. Evaluate the power supply requirements against the ±3 V to ±18 V operating range. If system power constraints exist, utilize the disable pin to reduce current consumption during idle periods.

Part Context

The ADEL2020 series consists of high-speed current feedback amplifiers intended for demanding analog signal processing tasks. This specific model serves as an enhanced alternative to legacy parts, offering superior dynamic performance metrics. It is manufactured by Analog Devices Inc. and is available in standard through-hole and surface-mount packages suitable for various PCB layouts.

Replacement Considerations

The datasheet identifies the ADEL2020 as an improved second source to the EL2020. Designers replacing older components should verify that the improved specifications such as bandwidth and noise levels meet the original circuit requirements.