AD8376ACPZ-R7

Overview

The AD8376ACPZ-R7 is a dual-channel, digitally controlled variable gain amplifier (VGA) fabricated on a high-speed SiGe process. It provides precise gain control with a range of -4 dB to +20 dB and a step size of 1 dB ± 0.2 dB. The device features a bandwidth of 700 MHz (-3 dB), an output IP3 of approximately 50 dBm at 200 MHz, and a noise figure of 8.7 dB at maximum gain. It operates on a single 5 V supply, consumes 250 mA typically, and is housed in a 32-lead LFCSP package.

Feature Summary

• Dual independent channels with parallel 5-bit digital control interfaces for precise gain adjustment
• Open-collector differential outputs allowing flexible signal voltage gain setting via loading impedance
• Advanced distortion cancellation techniques ensuring constant SFDR across the gain range
• Individual power-down capability providing excellent input-to-output isolation when disabled

Applications

• Differential ADC drivers
• Main and diversity IF sampling receivers
• Wideband multichannel receivers
• Instrumentation

Procurement Notes

Verify the specific suffix R7 indicates reel packaging upon procurement. Confirm the component matches the Analog Devices Inc. manufacturer designation. Ensure the ordering code aligns with the required temperature range and package type specifications found in official documentation before finalizing orders.

Selection Notes

Select this component for applications requiring wide dynamic range and low distortion in RF front ends. Consider the open-collector output architecture which necessitates external biasing networks. Evaluate the thermal performance requirements given the 250 mA quiescent current consumption per device in the compact LFCSP package.

Part Context

This part belongs to the AD8376 series of ultralow distortion IF dual VGAs from Analog Devices. It is designed for high-performance receiver applications where maintaining linearity and noise figure over a wide gain range is critical. The series utilizes proprietary distortion cancellation to achieve superior harmonic performance compared to standard VGA solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.