ADL5569BCPZ

Overview

The ADL5569BCPZ is a dual, high-performance differential amplifier fabricated on an Analog Devices SiGe process. It features a typical -3 dB bandwidth of 6.5 GHz and a preset voltage gain of 20 dB, which can be reduced via external series resistors to allow differential input gains from 6 dB to 20 dB or single-ended gains from 6 dB to 17 dB. The device operates with a quiescent current of 86 mA per amplifier at a 5 V supply and includes power-down control reducing consumption to 8 mA. It offers low noise spectral density (1.0 nV/√Hz at 100 MHz) and excellent distortion performance, making it suitable for driving high-speed ADCs.

Feature Summary

• Dual-channel fully differential architecture with internal DC-coupled inputs and outputs
• Adjustable voltage gain flexibility using external series resistors
• Ultra-low noise input stage optimized for wideband signal integrity
• Integrated power-down control for active and sleep mode operation

Applications

• Differential ADC drivers for GSPS ADCs
• High speed data acquisition systems
• Single-ended to differential conversion
• DAC buffering
• RF/IF gain blocks

Procurement Notes

Verify the specific suffix 'BCPZ-R7' against the manufacturer's official ordering guide to confirm package type and reel quantity specifications. Ensure the component matches the 16-lead LFCSP form factor required for the target PCB layout. Cross-reference the revision history in the datasheet to confirm compatibility with existing design parameters before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring a 6.5 GHz bandwidth and adjustable gain between 6 dB and 20 dB. It is appropriate for applications needing low noise spectral density and high linearity to drive 12-bit to 16-bit ADCs. Consider the 5 V supply requirement and 86 mA quiescent current per channel during power budgeting. Verify that the operating temperature range of -40°C to +85°C meets environmental constraints.

Part Context

The ADL5569 belongs to a family of high-performance differential amplifiers designed for RF and microwave applications. It is optimized for zero intermediate frequency and complex IF receiver designs. The device utilizes a compact 2.5 mm × 3 mm, 16-lead LFCSP package. It is fabricated using a high-speed silicon germanium process to ensure superior dynamic range and low distortion across a wide frequency spectrum.

Replacement Considerations

Consult the manufacturer's official documentation for verified substitute part numbers. Do not assume functional equivalence with other models without explicit confirmation from the source datasheet.

FAQ

How is the gain of the ADL5569 adjusted?

The preset gain of 20 dB can be reduced by adding two external series resistors to the inputs, allowing differential input gains from 6 dB to 20 dB.

What is the output common-mode voltage range?

The device maintains low distortion through an output common-mode range of 2.0 V to 3.0 V when operating with a 5 V supply.

Can the ADL5569 operate in DC-coupled applications?

Yes, the amplifier supports DC-coupled applications, particularly when utilizing dual-supply operation or adjusting the VCOM pins within specified limits.