ADI ADA8282WBCPZ-R7

The ADA8282 is designed for applications that require low cost, low power, compact size, and flexibility. The ADA8282 has four parallel channels, each including an LNA and a PGA. The LNA and PGA combine to form a signal chain that features a gain range of 18 dB to 36 dB in 6 dB increments with a guaranteed minimum bandwidth of 5 MHz. Using the highest power settings, the combined input referred voltage noise of the combined LNA and PGA channel is 3.4 nV/√Hz at maximum gain. The ADA8282 can be configured in four power modes that trade off power and noise performance to optimize the overall performance according to the end application. Fabricated in an advanced complementary metal-oxide semiconductor (CMOS) process, the ADA8282 is available in a 5 mm×5 mm, RoHS-compliant, 32-lead LFCSP. It is specified over the automotive temperature range of -40°C to +125°C.

• 4 channels of low noise amplifiers (LNAs) followed by programmable gain amplifiers (PGAs)
• Minimum -3 dB bandwidth of 5 MHz
• Typical -3 dB bandwidth of 42.3 MHz
• Typical slew rate of 28 V/μs
• Differential input and output
• Gain of 18 dB to 36 dB in 6 dB steps
• Selectable low noise and low power modes
• Input referred noise of 4.5 nV/√Hz at 18.3 mW per channel
• Input referred noise of 3.8 nV/√Hz at 26.5 mW per channel
• Input referred noise of 3.6 nV/√Hz at 34.8 mW per channel
• Input referred noise of 3.4 nV/√Hz at 54.8 mW per channel
• Channel to channel gain matching of ±0.25 dB
• Absolute gain error of ±0.5 dB
• SPI programmable
• Power-down mode (SPI selectable)
• 3.1 V p-p differential output swing when using a 3.3 V supply
• 32-lead, 5 mm×5 mm LFCSP package
• Specified from -40°C to +125°C
• Qualified for automotive applications

• Automotive radar
• Adaptive cruise control
• Collision avoidance
• Blind spot detection
• Self parking
• Electronic bumpers