Dual 500 MSample/s 5-bit ADC Chip

Two analog-to-digital converters are integrated on this 0.18µm CMOS chip to provide Nyquist sampling of quadrature UWB signals that have been down-converted to baseband. The ADCs use a six-way time-interleaved successive approximation register topoogy to achieve a total 15.6mW core power consumption from a 1.8V digital and 1.2V analog; the resolution is scalable down to 1-bit for further power savings.