Patent ID: 11933648
Assignee: INVENSENSE, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H  B | IPC B  G  H

Claim 12:
13. A method to digitize sensor outputs from one or more sensors, comprising:
selecting sensor outputs in a sequential selection sequence, resulting in a stream of selected sensor outputs;
using a multi-stage analog to digital converter to convert the stream of selected sensor outputs into a stream of digitized outputs, wherein the using the multi-stage analog to digital converter comprises:
using a sigma delta analog to digital converter to convert the stream of selected sensor outputs into a first intermediate output and a second intermediate output; and
using a second analog to digital converter to convert the first intermediate output into a third intermediate output while the multi-stage analog to digital converter continues to use the sigma delta analog to digital converter to convert the stream of selected sensor outputs; and

re-scaling and summing the second intermediate output and the third intermediate output to produce the stream of digitized sensor outputs.