AD8285WBCPZ-RL
数据手册.pdfAFE 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