Advanced Imaging


Advanced Imaging Magazine

Updated: July 8th, 2008 05:26 PM CDT

12-Bit Pin-To-Pin-Compatible ADC


The AD9237 is a 12-bit monolithic ADC. It reduces board space in portable instrumentation, ultrasound, high-end imaging, digital still camera, scanner and low-power communications applications. The device consumes 190 milliwatts (mW) of power at 65 megasamples per second (MSPS), 135 mW at 40 MSPS and 90 mW at 20 MSPS. It operates from a single 3-volt power supply and features a separate digital output driver supply to accommodate 2.5- and 3-volt logic families. The AD9237 is pin-to-pin compatible with the company's 10-bit ADS9235 and 14-bit ADS9245 20/40/65 MSPS ADCs, and also with the 12-bit AD9236 and 14-bit AD9245 80 MSPS ADCs. In addition, a patented SHA (sample-and-hold amplifier) input allows for a variety of user-selectable input ranges and offsets, including single-ended applications. ANALOG DEVICES. Wilmington, MA.

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