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Details for AD9279BBCZ by Analog Devices
Semiconductors - ICs > Data & Signal Conversion > Analog-to-Digital Converters - ADC
ADC 12BIT 8CH I/Q DEMOD 144CSPBGA
AD9279BBCZ image

AD9279BBCZ by Analog Devices

ADC 12BIT 8CH I/Q DEMOD 144CSPBGA
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 u00d7 10 mm, 144-ball CSP-BGA TGC channel input-referred noise: 0.8 nV/u221aHz, max gain Flexible power-down modes Fast recovery from low power standby mode: <2 u03bcs Overload recovery: <10 ns Low noise preamplifier (LNA) Input-referred noise: 0.75 nV/u221aHz, 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: u221245 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/u221aHz Output-referred SNR: 155 dBc/u221aHz, 1 kHz offset, u22123 dBFS
Part Information
AD9279BBCZ image
RoHS Compliant
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.
Specifications
Resolution (Bits):
12bit
Sampling Rate:
80MSPS
Input Channel Type:
Single Ended
Data Interface:
SPI
Supply Voltage Type:
Single
Supply Voltage Min:
1.7V
Supply Voltage Max:
1.9V
ADC / DAC Case Style:
CSPBGA
No. of Pins:
144Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (07-Jul-2017)
Operating Temperature Range:
-40°C to +85°C
Supply Current:
328mA
Supply Voltage Range:
1.7V to 1.9V
Supply Voltage Range - Analogue:
1.7V to 1.9V
Alternate Descriptions
CONVERTER - ADC Richardson RFPD