AD8283 Radar Receive Path AFE: 6-Channel LNA/PGA/AAF with ADC
The AD8283 is designed for low cost, low power, compact size, flexibility, and ease of use. It contains six 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 80 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 CMOS process, the AD8283 is available in a 10 mm × 10 mm, RoHS-compliant, 72-lead LFCSP. It 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
Features and Benefits- 6 channels of LNA, PGA, AAF
- 1 channel of direct-to-ADC
- SPI-programmable gain = 16 dB to 34 dB in 6 dB steps
- Programmable third-order low-pass elliptic filter (LPF) from
1 MHz to 12 MHz - Precise channel-to-channel matching
Gain: ±0.5dB (-40 to 105°C)
Phase: ±5° (-40 to 105°C)
- Low noise, 3.5 nV/√Hz maximum of input referred voltage noise
- Low power, 170 mW per channel at 12 bits/80 MSPS
- Parallel 3.3V CMOS Output
- Selectable Input Impedance: 200Ω or 200kΩ
- Qualified for automotive applications
| |
Data Sheets
User Guides
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| AD8283WBCPZ Production | 72 ld LFCSP (10x10mm, 8.5mm exposed pad) | OTH 168 | -40 to 105C | 12.44 | 12 | Y |
| AD8283WBCPZ-RL Production | 72 ld LFCSP (10x10mm, 8.5mm exposed pad) | REEL 2000 | -40 to 105C | 12.44 | 12 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| AD8283CP-EBZ | 6 Channel 72 Lead LFCSP Evaluation Board | 750 | Y |
| AD8285CP-EBZ | 4 Channel 72 Lead LFCSP Evaluation Board | 750 | Y |
