AD8285
RECOMMENDED FOR NEW DESIGNSRadar Receive Path AFE: 4-Channel LNA/PGA/AAF with ADC
- Part Models
- 2
- 1ku List Price
- Starting From $10.70
Part Details
- 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
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Video 1
Webcast 1
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) | ||
| AD8285WBCPZ-RL | 72 ld LFCSP (10x10mm, 8.5mm exposed pad) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 13, 2024 - 24_0009 Qualification of Alternative Wafer Fab for TSMC 0.18um Mixed Signal CMOS Process |
||
| AD8285WBCPZ | PRODUCTION | |
| AD8285WBCPZ-RL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
AD8283 and AD8285 Evaluation Board