Patent ID: 9525428
Filing Date: 2016-12-20
CPC Classification: H03M

Claim Text:
1. A randomized interleaved analog-to-digital converter comprising: two or more analog-to-digital converters to sample, interleaved in time according to a pseudo-randomized sequence, an analog input of the randomized interleaved analog-to-digital converter and generate respective digital outputs; a digital combiner to combine the respective digital outputs of the two or more analog-to-digital converters to generate a digital output of the randomized interleaved analog-to-digital converter based on the pseudo-randomized sequence; a reference analog-to-digital converter for randomly sampling the analog input and generating reference digital outputs that are representative of the digital outputs of the two or more analog-to-digital converters based on randomized sampling periods; and calibration logic for measuring interleaving errors of the two-or analog-to-digital converters based on the respective digital outputs of the two-or more analog-to-digital converters and the reference digital outputs.