14-bit high-speed octal ADC will save space and power in portable medical products
Analog Devices' latest family of octal ADCs are ideal for portable medical devices and ultrasound machines where lower power consumption and smaller board space are critical design considerations. The 10-bit AD9212 and 12-bit AD9222 consume less than 100 mW per channel, yielding savings of as much as 5 to 6W when compared to competitive offerings in ultrasound systems containing up to 512 channels.
The octal ADCs, available in 9 mm x 9 mm, 64-pin LFCSPs (lead frame chip scale packages), provide a space savings of 40 to 60 percent over competing solutions. For multi-channel designs, the AD9212, AD9222 and AD9252 enable higher channel counts, less complex board layout and smaller board designs.
The three new ADCs are derived from the AD9228 core, a quad design that increased dynamic range and image resolution in ultrasound equipment. The AD9212, AD9222 and AD9252 support sampling rates up to 50 MSPS and provide serial low-voltage differential signaling (LVDS) data outputs. Delivering the performance needed for multi-channel imaging and radar systems, they enable more data conversion paths to be routed within a given printed circuit board (PCB) area.
A low noise floor is vital to medical instrumentation designers. With 70-dB signal-to-noise ratio (SNR) to Nyquist, the ADCs are adept at handling high sampling speeds without sacrificing performance. Featuring internal data rate multipliers, the converters offer improved output data flexibility with programmable clock and data alignment, as well as digital test pattern generation using a serial port interface (SPI).
The AD9212 and AD9222 are sampling now with full production quantities available this month.
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