ADA8282WBCPZ

Overview

The ADA8282WBCPZ is a radar receive path analog front-end (AFE) featuring four parallel channels, each integrating a low noise amplifier (LNA) and a programmable gain amplifier (PGA). Fabricated in CMOS, it operates on a 3.3 V analog supply with a 1.8 V to 3.6 V digital interface. The device provides a total gain range of 18 dB to 36 dB in 6 dB steps, with a typical bandwidth of 42.3 MHz at maximum gain. It supports four selectable power modes to optimize the trade-off between input referred noise (3.4 nV/√Hz to 4.5 nV/√Hz) and power consumption per channel.

Feature Summary

• Four-channel architecture with integrated LNA (24 dB fixed) and PGA (-6 dB to +12 dB variable)
• Programmable gain from 18 dB to 36 dB via SPI interface
• Four selectable power modes balancing noise performance and power dissipation
• Automotive qualified (AEC-Q100) with operation specified from -40°C to +125°C

Applications

• Automotive radar systems
• Adaptive cruise control
• Collision avoidance systems
• Blind spot detection
• Self-parking assistance

Procurement Notes

Verify the component meets automotive qualification standards if required for the specific application environment. Confirm that the 32-lead LFCSP package dimensions align with the target PCB footprint. Ensure the design accounts for the exposed pad thermal connection requirements specified in the datasheet.

Selection Notes

Select bias settings based on the required balance between bandwidth and noise floor. Higher power modes provide greater bandwidth (up to 52.3 MHz) and lower noise but increase power dissipation. Verify that the 3.3 V supply voltage is stable, as it directly influences the output swing and signal integrity.

Part Context

This component belongs to the Analog Devices radar AFE family. It is designed specifically for high-speed ramp frequency modulated continuous wave (HSR-FMCW) radar applications. The device consolidates multiple signal chain components into a compact 5 mm × 5 mm package to reduce system size and cost.

Replacement Considerations

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