AD8285

RECOMMENDED FOR NEW DESIGNS

Radar Receive Path AFE: 4-Channel LNA/PGA/AAF with ADC

Data Sheet (Rev. B) Product Selection Table

Part Models: 2
1ku List Price: Starting From $10.70

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Overview

4-channel LNA, PGA, and AAF
Low power: 185 mW per channel at 12 bits and 72 MSPS
Programmable gain amplifier (PGA)
Includes low noise preamplifier (LNA)
Serial peripheral interface (SPI) programmable gain 16 dB to 34 dB in 6 dB steps
Antialiasing filter (AAF)
Programmable third order, low-pass elliptic filter (LPF) from 1.0 MHz to 12.0 MHz

Analog-to-digital converter (ADC)
12 bits of accuracy up to 72 MSPS
Signal-to-noise ratio (SNR): 68.5 dB
Spurious-free dynamic range (SFDR): 68 dB at gain = 16 dB
1 direct to ADC channel
Low noise: 3.5 nV/√Hz maximum of input referred voltage noise
See data sheet for additional features

The AD8285 is designed for low cost, low power, compact size, flexibility, and ease of use. It contains four channels of a low noise preamplifier (LNA) with a programmable gain amplifier (PGA) and an antialiasing filter (AAF) plus one direct-to-ADC channel, all integrated with a single 12-bit analog-to-digital converter (ADC).

Each channel features a gain range of 16 dB to 34 dB in 6 dB increments and an ADC with a conversion rate of up to 72 MSPS. The combined input referred noise voltage of the entire channel is 3.5 nV/√Hz at maximum gain. The channel is optimized for dynamic performance and low power in applications where a small package size is critical.

Fabricated in an advanced complementary metal oxide semiconductor (CMOS) process, the AD8285 is available in a 10 mm × 10 mm, RoHS compliant, 72-lead LFCSP that is specified over the automotive temperature range of −40°C to +105°C.

APPLICATIONS

Automotive radar
Adaptive cruise control
Collision avoidance
Blind spot detection
Self parking
Electronic bumper

Part Models: 2
1ku List Price: Starting From $10.70

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD8285WBCPZ	72 ld LFCSP (10x10mm, 8.5mm exposed pad)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD8285WBCPZ-RL	72 ld LFCSP (10x10mm, 8.5mm exposed pad)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 13, 2024 - 24_0009 Qualification of Alternative Wafer Fab for TSMC 0.18um Mixed Signal CMOS Process
		PCN24_0009_Form Material_Report Delta Qualification Matrix Qualification Results Summary
AD8285WBCPZ	PRODUCTION
AD8285WBCPZ-RL	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

AD8283 and AD8285 Evaluation Board

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Product Details

The AD8283CP-EBZ and AD8285CP-EBZ are designed to aid in the evaluation of AD8283 and AD8285 radar receive path ICs. The boards connect to the high speed ADC FIFO evaluation board for ready data capture. They also provide flexible options for clock settings, voltage references, and easy interfaces for input signals.