ADA8282WBCPZ-R7

Overview

The ADA8282WBCPZ-R7 is a radar receive path analog front-end (AFE) featuring four parallel channels, each comprising a low noise amplifier (LNA) and a programmable gain amplifier (PGA). Fabricated in CMOS, it operates on a 3.3 V analog supply (AVDD) and supports 1.8 V to 3.6 V digital logic (VIO). The device provides a total gain range of 18 dB to 36 dB in 6 dB steps, with a typical –3 dB bandwidth of 42.3 MHz. It includes selectable power modes optimizing the trade-off between input referred noise (3.4 nV/√Hz to 4.5 nV/√Hz) and power consumption. Controlled via SPI, it is qualified for automotive applications and specified over a temperature range of −40°C to +125°C.

Feature Summary

• Four-channel architecture with integrated LNA and PGA per channel
• Programmable gain from 18 dB to 36 dB in 6 dB increments
• Selectable power modes balancing noise performance and power dissipation
• Automotive qualified with operation up to +125°C

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current data sheet to confirm package type and reel specifications. Confirm that the component meets all required automotive qualification standards for the intended application environment. Check for any recent product change notifications or end-of-life notices associated with this part number before finalizing procurement plans.

Selection Notes

Select the appropriate bias mode based on the required balance between bandwidth and noise floor. Ensure the system design accommodates the differential output swing variations at different gain settings. Verify that the SPI interface voltage levels match the VIO pin configuration. Consider thermal management requirements given the maximum power dissipation per channel in high-performance modes.

Part Context

The ADA8282 is designed specifically for high-speed ramp frequency modulated continuous wave (HSR-FMCW) radar applications. It integrates the critical signal chain components into a compact 32-lead, 5 mm × 5 mm LFCSP package. This integration reduces board space and simplifies the design compared to discrete solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available.