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AD9279 Datasheet (PDF) - Analog Devices

AD9279 Datasheet PDF - Analog Devices
Part # AD9279
Download  AD9279 Download

File Size   971.31 Kbytes
Page   44 Pages
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices
Description Octal LNA/VGA/AAF/ADC and CW I/Q Demodulator

AD9279 Datasheet (PDF)

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AD9279 Datasheet PDF - Analog Devices

Part # AD9279
Download  AD9279 Click to download

File Size   971.31 Kbytes
Page   44 Pages
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices
Description Octal LNA/VGA/AAF/ADC and CW I/Q Demodulator

AD9279 Datasheet (HTML) - Analog Devices

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AD9279 Product details

GENERAL DESCRIPTION
The AD9279 is designed for low cost, low power, small size, and ease of use for medical ultrasound and automotive radar. It contains eight channels of a variable gain amplifier (VGA) with a low noise preamplifier (LNA), an antialiasing filter (AAF), an analog-to-digital converter (ADC), and an I/Q demodulator with programmable phase rotation.
Each channel features a variable gain range of 45 dB, a fully differential signal path, an active input preamplifier termination, and a maximum gain of up to 52 dB. The channel is optimized for high dynamic performance and low power in applications where a small package size is critical.
The LNA has a single-ended-to-differential gain that is selectable through the SPI. Assuming a 15 MHz noise bandwidth (NBW) and a 21.3 dB LNA gain, the LNA input SNR is roughly 94 dB. In CW Doppler mode, each LNA output drives an I/Q demod ulator that has independently programmable phase rotation with 16 phase settings.
Power-down of individual channels is supported to increase battery life for portable applications. Standby mode allows quick power-up for power cycling. In CW Doppler operation, the VGA, AAF, and ADC are powered down. The ADC contains several features designed to maximize flexibility and minimize system cost, such as a programmable clock, data alignment, and programmable digital test pattern generation. The digital test patterns include built-in fixed patterns, built-in pseudo random patterns, and custom user-defined test patterns entered via the serial port interface.

FEATURES
  8 channels of LNA, VGA, AAF, ADC, and I/Q demodulator
     Low power: 141 mW per channel, TGC mode, 40 MSPS; 60 mW per channel, CW mode
     10 mm × 10 mm, 144-ball CSP-BGA
     TGC channel input-referred noise: 0.8 nV/√Hz, max gain
     Flexible power-down modes
     Fast recovery from low power standby mode: <2 μs
     Overload recovery: <10 ns
  Low noise preamplifier (LNA)
     Input-referred noise: 0.75 nV/√Hz, gain = 21.3 dB
     Programmable gain: 15.6 dB/17.9 dB/21.3 dB
     0.1 dB compression: 1000 mV p-p/750 mV p-p/450 mV p-p
     Dual-mode active input impedance matching
     Bandwidth (BW): >100 MHz
  Variable gain amplifier (VGA)
     Attenuator range: −45 dB to 0 dB
     Postamp gain (PGA): 21 dB/24 dB/27 dB/30 dB
     Linear-in-dB gain control
  Antialiasing filter (AAF)
     Programmable second-order LPF from 8 MHz to 18 MHz
     Programmable HPF
  Analog-to-digital converter (ADC)
     SNR: 70 dB, 12 bits up to 80 MSPS
     Serial LVDS (ANSI-644, low power/reduced signal)
  CW mode I/Q demodulator
     Individual programmable phase rotation
     Output dynamic range per channel: >160 dBc/√Hz
     Output-referred SNR: 155 dBc/√Hz, 1 kHz offset, −3 dBFS




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About Analog Devices


Analog Devices, Inc. (ADI) is a publicly traded company that designs, develops, and manufactures high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs).
The company was founded in 1965 and is headquartered in Norwood, Massachusetts.
ADI serves a wide range of industries, including aerospace and defense, automotive, communications, consumer, industrial, medical, and test and measurement.
The company's product portfolio includes data converters, amplifiers and comparators, power management ICs, microcontrollers, sensors, and radio frequency (RF) and microwave components, among others.
ADI is dedicated to innovation and customer satisfaction, and is committed to providing its customers with high-quality, reliable solutions to meet their needs.
With a focus on energy efficiency and sustainability, ADI is a leader in the analog and mixed-signal IC industry, driving technological advancements and providing innovative solutions to the world's most challenging problems.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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