Most significant bits analog to digital converter, and an analog to digital converter including a most significant bits analog to digital converter
AssigneeAnalog Devices, Inc.
InventorChristopher Peter Hurrell
Life of this patent
Estimating the term…
Abstract
A most significant bits analog to digital converter for determining a first P bits of an N bit analog to digital conversion, the most significant bits analog to digital converter comprising: a digital to analog converter a capacitive attenuator, and a switching arrangement for inhibiting action of the attenuator during sampling and enabling the attenuator during conversion.
Claims15
A most significant bits analog to digital converter for determining a first P bits of an N bit analog to digital conversion, the most significant bits analog to digital converter comprising:
- a digital to analog converter
- a capacitive attenuator, and
- a switching arrangement for inhibiting action of the attenuator during sampling and enabling the attenuator during conversion.
A method of performing an analog to digital conversion comprising:
- converting a first group of bits using a first conversion process, wherein the first group of bits are most significant bits, where
- during a conversion phase, attenuating an input signal, and
- during a sampling phase, not attenuating the input signal;
- and
- converting remaining non-most significant bits using a second conversion process.
Dependencies are inferred from the claim text.