Data converter with redundancy for error correction

摘要

Methods, devices, and apparatus include systems and techniques for error correction. According to an aspect, a device includes analog-to-digital conversion comparators configured to effect analog-to-digital conversion of an analog input signal; redundant comparators configured to effect error correction for the analog-to-digital conversion; and encoder circuitry configured to generate a digital output signal based on outputs of the analog-to-digital conversion comparators and the redundant comparators.

主权项

1. A method comprising:
using analog-to-digital conversion comparators to effect analog-to-digital conversion of an analog input signal; using redundant comparators to effect error correction for the analog-to-digital conversion; and generating a digital output signal based on outputs of the analog-to-digital conversion comparators and the redundant comparators; wherein the analog-to-digital conversion has an associated least significant bit (LSB) voltage resolution, and the analog-to-digital conversion comparators comprise at least three comparators, n=1, 2, 3, . . . , each respective comparator n operating at an (n−0.5)*LSB reference voltage level, and the redundant comparators comprise at least two comparators, m=1, 2, . . . , each respective comparator m operating at a −(m−0.5)*LSB reference voltage level.