Application Note: How to Oversample 5 MSPS, 18-Bit/16-Bit Precision SAR Converters to Increase Dynamic Range

How to Oversample 5 MSPS, 18-Bit16-Bit Precision SAR Converters to Increase Dynamic RangeHigh performance data acquisition signal chains used for spectroscopy, magnetic resonance imaging (MRI), gas chromatography, and vibration, oil/gas, and seismic systems demand a state-of-the-art, high dynamic range (DR) while addressing difficult thermal design, space, and cost challenges.

This application note focuses on the oversampling of high throughput, 5 MSPS, 18-bit/16-bit precision successive approximation register (SAR) converters by implementing a straightforward averaging of ADC output samples to increase the dynamic range.