AD8284
RECOMMENDED FOR NEW DESIGNSRadar Receive Path AFE: 4-Channel MUX with LNA, PGA, AAF, and ADC
- Part Models
- 2
- 1ku List Price
- Starting From $12.73
Overview
- 4 channel mux to LNA, PGA, AAF
- 1 direct-to-ADC channel
- Programmable gain amplifier (PGA)
- Includes low noise preamplifier (LNA)
- SPI-programmable gain = 17 dB to 35 dB in 6 dB steps
- Antialiasing filter (AAF)
- Programmable third-order low-pass elliptic filter (LPF) from 9 MHz to 15 MHz
- Analog-to-digital converter (ADC)
- 12 bits of accuracy up to 60 MSPS
- SNR = 67 dB
- SFDR = 68 dBc
- See data sheet for additional features
The AD8284 is an integrated analog front end designed for low cost, compact size, flexibility, and ease of use. It contains a 4-channel differential multiplexer (mux), a 1-channel low noise preamplifier (LNA) with a programmable gain amplifier (PGA) and an antialiasing filter (AAF), as well as one direct-to-ADC channel, all integrated with a single, 12-bit analog-to-digital converter (ADC). The AD8284 also incorporates a saturation detection circuit for high frequency overvoltage conditions that would otherwise be filtered by the AAF.
The analog channel features a gain range of 17 dB to 35 dB in 6 dB increments, and an ADC with a conversion rate of up to 60 MSPS. The combined input referred voltage noise 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 AD8284 is available in a 10 mm × 10 mm, RoHS compliant, 64-lead TQFP. 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
Documentation
Data Sheet 1
Video 1
Product Selection Guide 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 |
|---|---|---|---|
| AD8284WCSVZ | 64-Lead TQFP (10mm x 10mm w/ EP) | ||
| AD8284WCSVZ-RL | 64-Lead TQFP (10mm x 10mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 22, 2015 - 14_0259 Assembly Transfer of Select 10x10 and 14x14 TQFP_EP Products to Amkor Philippines |
||
| AD8284WCSVZ | PRODUCTION | |
| AD8284WCSVZ-RL | PRODUCTION | |
|
Sep 9, 2014 - 14_0184 AD8284 Data Sheet Change |
||
| AD8284WCSVZ | PRODUCTION | |
| AD8284WCSVZ-RL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.