AD8285WBCPZ-RL

AFE General Purpose 1ADC 12Bit 1.8V/3.3V 72Pin LFCSP T/R

Product Details

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**

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Automotive radar

Adaptive cruise control

Collision avoidance

Blind spot detection

Self parking

Electronic bumper

### Features and Benefits

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4-channel LNA, PGA, and AAF

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1 direct to ADC channel

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Programmable gain amplifier PGA

Includes low noise preamplifier LNA

Serial peripheral interface SPI programmable gain 16 dB to 34 dB in 6 dB steps

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Antialiasing filter AAF

Programmable third order, low-pass elliptic filter LPF from 1.0 MHz to 12.0 MHz

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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

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Low power: 185 mW per channel at 12 bits and 72 MSPS

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Low noise: 3.5 nV/√Hz maximum of input referred voltage noise

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See data sheet for additional features