Analog-to-digital conversion circuit
AssigneeZeroG Wireless, Inc.
InventorHonglei Wu
Life of this patent
Estimating the term…
Abstract
An analog-to-digital conversion circuit and a method for calibrating an analog-to-digital conversion circuit are provided. A digital translation of an analog voltage is analyzed to determine a characteristic value of the analog voltage. A reference voltage, with which the digital translation is generated, is set to a value that is a minimum amount greater than the characteristic value. Additional embodiments include setting an offset voltage, with which the digital translation is also generated.
Claims17
A method for calibrating an analog-to-digital conversion circuit, comprising:
- analyzing a digital translation of an analog voltage to determine a swing value of the analog voltage and a minimum magnitude of the analog voltage;
- setting a reference voltage, with which the digital translation is generated, to a value that is a minimum amount greater than the characteristic value;
- and
- setting an offset voltage, with which the digital translation is also generated, to a value that is a minimum amount below the minimum magnitude of the analog voltage.
A method for calibrating an analog-to-digital conversion circuit, comprising:
- analyzing a digital translation of an analog voltage to determine is a maximum magnitude of the analog voltage;
- and
- setting a reference voltage, with which the digital translation is generated, to a value that is a minimum amount above the maximum magnitude.
An analog-to-digital conversion circuit for converting an input voltage to a digital translation thereof, comprising:
- an ADC that receives the input voltage, a reference voltage and an offset voltage and that outputs a
- digital representation of the input voltage based on the reference voltage and the offset voltage, the input voltage being characterized by a swing value and a minimum value;
- and
- a controller that receives and analyzes the digital representation of the input voltage to determine the swing value and the minimum value thereof and that
- sets the offset voltage to be a minimum amount below the minimum value of the input voltage and sets the reference voltage to be the minimum amount greater than the swing value of the input voltage.
An analog-to-digital conversion circuit for converting an input voltage to a digital translation thereof, comprising:
- an ADC that receives the input voltage and a reference voltage and that outputs a digital representation of the input voltage based on the reference voltage, the input voltage being characterized by a maximum value thereof;
- and
- a controller that receives and analyzes the digital representation of the input voltage to determine the maximum value thereof and that sets the reference voltage to be a minimum amount greater than the maximum value of the input voltage.
An analog-to-digital conversion circuit for converting an input voltage to a digital translation thereof, comprising:
- a means for generating a digital representation of the input voltage based on a reference voltage and an offset voltage, the input voltage being characterized by a swing value and a minimum value;
- a means for analyzing the digital representation of the input voltage to determine the swing value and the minimum value thereof;
- and
- a means for setting the offset voltage to be a minimum amount below the minimum value of the input voltage and setting the reference voltage to be a minimum amount greater than the swing value of the input voltage.
Dependencies are inferred from the claim text.