Part Details for ADA4004-2 by Analog Devices Inc
Overview of ADA4004-2 by Analog Devices Inc
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Part Details for ADA4004-2
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ADA4004-2
Analog Devices Inc
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ADA4004-2
Analog Devices Inc
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Reference Designs related to ADA4004-2
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CN0260 - Oversampled SAR ADC with PGA Achieving Greater Than 125 dB Dynamic Range
There are many applications that require wide dynamic range. Weigh scale systems typically use load cell bridge sensors with maximum full-scale outputs of 1 mV to 2 mV. Such systems may require resolutions on the order of 1,000,000 to 1, which, when referred to a 2 mV full-scale input, call for a high performance, low noise, high gain amplifier and a sigma-delta modulator. Similarly, chemical and blood analyses for medical applications often use photodiode sensors, producing very small currents that need to be accurately measured. Some applications, such as vibration monitoring systems, contain both ac and dc information, so the ability to accurately monitor both small and large signals is growing in importance. Sigma-delta ADCs implement this well in many cases but are limited when both ac and dc measurements are needed and fast gain switching is required.