AD605AR-REEL

Overview

The AD605AR-REEL is a dual-channel, low-noise, single-supply variable gain amplifier (VGA) from Analog Devices. It features a linear-in-dB gain control characteristic and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides a voltage gain of 34 dB with a gain-bandwidth product of 40 MHz. Key electrical specifications include an input bias current of 400 nA and a maximum input resistance of 175 Ohms. It draws 23 mA of operating supply current and functions across a temperature range of -40°C to +85°C. The component is housed in a 16-lead SOIC package.

Feature Summary

• Dual-channel architecture for simultaneous signal processing
• Linear-in-dB gain control for precise amplitude adjustment
• Low noise performance optimized for high-fidelity applications
• Single-supply operation simplifying power design

Applications

• RF receiver front-end stages
• Automatic gain control (AGC) systems
• Instrumentation signal conditioning
• Communication system amplification

Procurement Notes

Verify the specific suffix 'REEL' against official Analog Devices documentation to confirm packaging quantity and tape-and-reel specifications. Ensure the part number matches the exact RoHS compliance status and lifecycle stage indicated in the latest datasheet. Cross-reference the manufacturer's ordering guide for any recent updates to pinout or thermal requirements before finalizing procurement.

Selection Notes

Select this component when dual-channel VGA functionality with linear-in-dB control is required. Consider the 40 MHz gain-bandwidth product and 34 dB gain range relative to signal frequency needs. Evaluate the 4.5 V to 5.5 V single-supply constraint and 23 mA current consumption against available power resources. Confirm that the 16-lead SOIC package fits the board layout constraints.

Part Context

The AD605 series represents Analog Devices' solution for precision variable gain amplification. This specific model integrates two independent channels into a single package, reducing board space compared to discrete solutions. It is designed for applications demanding accurate gain control without the complexity of multi-stage amplifier designs, serving as a key building block in modern analog signal chains.

Replacement Considerations

Public confirmed substitute part numbers: AD605BRZ, AD605ARZ.