AD8285
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AD8285

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

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $10.70
Features
  • 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
Additional Details
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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

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD8285WBCPZ
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AD8285WBCPZ-RL
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Product Lifecycle

PCN

May 13, 2024

- 24_0009

Qualification of Alternative Wafer Fab for TSMC 0.18um Mixed Signal CMOS Process

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Part Models

Product Lifecycle

PCN

May 13, 2024

- 24_0009

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Qualification of Alternative Wafer Fab for TSMC 0.18um Mixed Signal CMOS Process

Evaluation Kit

Evaluation Kits 1

EVAL-AD8283

AD8283 and AD8285 Evaluation Board

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EVAL-AD8283

AD8283 and AD8285 Evaluation Board

AD8283 and AD8285 Evaluation Board

Product Detail

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.

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