A VCO-based analog-to-digital converter with second- order sigma-delta noise shaping Citation
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چکیده
A voltage-controlled oscillator (VCO) based analogto-digital converter (ADC) utilizing Sigma-Delta (Σ−Δ) techniques for second order quantization noise shaping is presented. A custom IC prototype of this highly digital architecture achieves 60-dB signal-to-noise ratio (SNR) over a 1-MHz bandwidth with 800-MHz sampling rate. It was fabricated in a 0.18-μm 1-poly 5-metal CMOS technology.
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تاریخ انتشار 2009