If you want to implement 1ppm DAC analog system design, often face a complex engineering challenges.
At present, the usual way is to put more of a lower resolution of DAC and a large number of discrete devices and support IC together, with the attendant is considerable development risk and high cost of modification time.
Therefore, ADI has launched the first truly 1ppm (one millionth) resolution and accuracy of the 20-bit DAC devices-AD5791, its accuracy and resolution is higher than similar Converter 4 times.
AD5791 have the resolution and accuracy 1ppm, low noise (1ppm following), fast refresh rate (1us) and very low output drift (1ppm following), which can greatly simplify the design task, reduce development costs and reduce risk.In MRI (magnetic resonance imaging) system, this breakthrough technology not only improves image quality and can be applied to high-intensity magnetic intensity gradient for precise control, thereby achieving very high image resolution and contrast.
The use of low noise, low drift and high linearity performance AD5791, eliminates the need for system calibration cycle causes of MRI system frequently offline, effectively extending the working time of MRI System. The new converter also reduces the need for complex calibration algorithm, which can reduce engineering and system maintenance costs. In addition to the MRI System, suitable for the application of other AD5791 also includes: testing and measurement systems, high-end science and aviation instrument, communications equipment, and industrial control systems, etc.
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