Patent · US Active

Analog-to-digital converter and method to operate an analog-to-digital converter

US11258455B2 · kind B2 · utility

0Cited by

1References

16Claims

0Family size

Assignee

AMS AG · AT

Inventors

Helmut Theiler · Lieboch, AT
Herbert Lenhard · Graz, AT

Key dates

Filing date	Apr 29, 2019
Grant date	Feb 22, 2022
Priority date	—
Expiry date	Apr 29, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03M3/49
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An analog-to-digital converter (ADC) is based on single-bit delta-sigma quantization. The ADC includes an integrator, a threshold detector, a feedback block, a range control circuit and an output processing block. The ADC is configured to, based on its own generated digital bitstream, adjust the magnitude of a subtrahend signal in order to achieve autonomous auto-ranging of the ADC during the integration time of a measurement. In particular, the auto-ranging allows for the efficient conversion of an analog input signal with high dynamic range, for example ambient light, to a digital output signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.