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BWRC Retreat

Outline. Motivation2-1 MASH Sigma-Delta(??)Architecture and ImplementationLayoutSimulated ResultsSummary. Motivation. . . High precision ADC (14-bit). Integrating: slow, comparator offsetAlgorithmic, successive approximation: high gain op-amp, precision capacitor matching Sigma-delta(??): no

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BWRC Retreat

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    1. BWRC Retreat Design of a 2-1 MASH Sigma-Delta ADC Bill Tsang, Yun Chiu, Borivoje Nikolic 01/12/2004 Monterey,CA

    2. Outline Motivation 2-1 MASH Sigma-Delta(??)Architecture and Implementation Layout Simulated Results Summary

    3. Motivation

    4. ?? ADC

    5. 2-1 MASH ??

    7. Noise

    8. Matching

    9. Circuit Detail

    10. Floor Plan

    11. Layout (Integrator I)

    12. Layout (Integrator I)

    13. Simulation Results Gain errorGain error

    14. Summary Effective oversampling ratioEffective oversampling ratio

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