ADL5566ACPZ-R7

Overview

The ADL5566ACPZ-R7 is a dual differential amplifier fabricated on a high-speed SiGe process, optimized for IF and DC applications. It features a fixed gain of 16 dB with a -3 dB bandwidth of 4.5 GHz. The device operates on a single supply voltage ranging from 2.8 V to 5.2 V, consuming 140 mA at 3.3 V. It provides low noise spectral density of 1.3 nV/√Hz and maintains excellent distortion performance across wide frequency ranges. Packaged in a compact 4 mm × 4 mm, 24-lead LFCSP, it supports both AC and DC coupling.

Feature Summary

• Offers ultra-high dynamic range with a 4.5 GHz bandwidth and fixed 16 dB gain.
• Provides low noise input stage with 1.3 nV/√Hz RTI for superior signal fidelity.
• Features adjustable output common-mode voltage (VCOM) down to 1.2 V for flexible ADC interfacing.
• Includes independent enable pins for power-down control with fast settling time.

Applications

• Differential ADC drivers
• Single-ended to differential conversion
• RF/IF gain blocks
• SAW filter interfacing

Procurement Notes

Verify the specific package marking and date code against the manufacturer's latest ordering guide before finalizing procurement. Confirm that the R7 suffix corresponds to the reel packaging format required by your assembly line equipment. Ensure compatibility with the specified operating temperature range of -40°C to +85°C for your intended environment.

Selection Notes

Select this component when driving high-speed ADCs requiring low noise and high linearity. Consider the 16 dB fixed gain as a baseline; external resistors can reduce gain if necessary. Evaluate the 2.8 V to 5.2 V supply range against system power constraints. Verify that the 24-lead LFCSP footprint fits within the available PCB area and thermal management capabilities.

Part Context

This part belongs to Analog Devices' family of ultrahigh dynamic range dual differential amplifiers. It shares architectural similarities with models like the ADL5561 and ADL5567 but offers distinct gain and bandwidth characteristics tailored for zero-IF and complex IF receiver designs. The SiGe process ensures high speed and low power consumption compared to standard bipolar technologies.

Replacement Considerations

Check datasheets for ADL5561, ADL5565, ADL5567, and ADL5569 for potential functional substitutes. Verify pinout compatibility and gain specifications, as these variants offer different fixed gains or programmable options. Ensure the replacement part supports the required 4.5 GHz bandwidth and 24-lead LFCSP package.

FAQ

Can the gain be adjusted?

Yes, the fixed 16 dB gain can be reduced by adding external series resistors to the inputs, allowing for any gain selection from 0 dB to 16 dB for differential input.

What is the output common-mode voltage range?

The output common-mode voltage can be adjusted via the VCOMx pins. For a 3.3 V supply, it ranges from 1.25 V to 1.8 V, and up to 3 V for a 5 V supply.

How does the device handle power-down?

Pulling the ENBL1 or ENBL2 pins low disables the respective amplifier, reducing quiescent current to less than 7 mA per amplifier while maintaining -25 dB isolation.