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20250183906. Metastability E (TEXAS INSTRUMENTS INCORPORATED)

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METASTABILITY ERROR DETECTION AND BER IMPROVEMENT TECHNIQUE IN PIPELINED ADCS

Abstract: in an example, a system includes a pipelined analog-to-digital converter (adc) having a main path and an auxiliary path. the main path includes a first stage having a sampling switch, a flash adc having an input coupled to the sampling switch, a digital-to-analog converter (dac) having an input coupled to an output of the flash adc, and a first amplifier having an input coupled to an output of the dac and the sampling switch. the main path includes a second stage coupled to the first stage and an input of a second amplifier. the main path also includes a backend adc having an input coupled to an output of the second amplifier. the auxiliary path includes a plurality of metastability comparators coupled to the flash adc.

Inventor(s): Neeraj SHRIVASTAVA, Visvesvaraya Appala PENTAKOTA, Sai Vikas KANDIMALLA, Samriddh BHALLA, Abhijith N, Prabhansh PANDEY

CPC Classification: H03M1/1205 (Analogue/digital converters ({ – } take precedence))

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