EngineeringElectrical EngineeringAnalog ElectronicsMicroelectronicsSemiconductor DevicesAnalog Integrated CircuitsCmos Circuit DesignHigh-frequency Semiconductor DevicesIntegrated Circuit DesignMixed-signal Integrated Circuit DesignRadio-frequency Integrated CircuitsAnalog-digital ConversionAnalog-to-digital ConversionAnalog-to-digital Converter DesignAnalog-to-digital Converter IntegrationAnalog-to-digital ConvertersCmos Analog Integrated CircuitsHigh-frequency ConversionVery-large-scale Integration
A flash converter is the most popular way to achieve very fast analog-to-digital conversion. In the past, sampling-rate and input-frequency limits on silicon monolithic 8b converters have been 400MHz. This ADC achieves 500MHz conversion by using a double poly-silicon-emitter self-aligned process with 0.6μm emitter width, and 10GHz f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">τ</sub> , About 22,000 elements are integrated on a 4051x4.62mm chip using double-layer metal.
1