Adaptive sample and hold circuit for signal amplifier range selection
AssigneeDialog Semiconductor GmbH
InventorAnthony Gribben
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Abstract
An adaptive sample and hold circuit for signal amplifier range selection is presented. The adaptive sample and hold circuit has an input for receiving an input signal and an output for providing a sample-and-hold-voltage. It also includes a sample-and-hold-capacitor to generate the sample-and-hold-voltage from the input signal, and a range detector. The range detector is adapted to identify a range of the input signal and to adjust a voltage at the sample-and-hold-capacitor based on the range of the input signal to maintain the sample-and-hold-voltage within a predetermined voltage span.
Claims19
An adaptive sample and hold circuit comprising
- an input for receiving an input signal;
- an output for providing a sample-and-hold-voltage;
- a sample-and-hold-capacitor to generate the sample-and-hold-voltage from the input signal;
- and
- a range detector adapted to identify a range of the input signal and to adjust a voltage at the sample-and-hold-capacitor based on the range of the input signal to maintain the sample-and-hold-voltage within a predetermined voltage span.
A signal amplifier for amplifying an input signal, the signal amplifier comprising
- an adaptive sample and hold circuit comprising an input for receiving an input signal;
- an output for providing a sample-and-hold-voltage;
- a sample-and-hold-capacitor to generate the sample-and-hold-voltage from the input signal;
- and a range detector adapted to identify a range of the input signal and to adjust a voltage at the sample-and-hold-capacitor based on the range of the input signal to maintain the sample-and-hold-voltage within a predetermined voltage span.
A method of sampling and holding a signal adaptively, the method comprising
- receiving an input signal;
- providing a sample-and-hold-capacitor to generate a sample-and-hold-voltage from the input signal;
- identifying a range of the input signal and
- adjusting a voltage at the sample-and-hold-capacitor based on the range of the input signal to maintain the sample-and-hold-voltage within a predetermined voltage span.
Dependencies are inferred from the claim text.