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US 2018/0069565 A1Published application
Semiconductor device and ad conversion device
AssigneeRenesas Electronics Corporation
InventorNorio SUGITA
Life of this patent
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Abstract
A semiconductor device includes an AD conversion unit that performs AD conversion on an input signal based on a reference voltage to be supplied, a reference voltage detection unit that detects the reference voltage supplied to the AD conversion unit, and a control unit that corrects a result of the AD conversion by the AD conversion unit in accordance with the reference voltage detected by the reference voltage detection unit. Thereby, AD conversion can be performed accurately even when a reference voltage varies.
Claims13
A semiconductor device comprising:
- an AD conversion unit that performs AD conversion on an input signal based on a reference voltage to be supplied;
- a reference voltage detection unit that detects the reference voltage, and
- a control unit that corrects a result of the AD conversion in accordance with the detected reference voltage.
An AD conversion device comprising:
- a semiconductor device including both an AD conversion unit that performs AD conversion on an input signal based on a reference voltage to be supplied, and a control unit that corrects a result of the AD conversion;
- and
- a reference voltage detection unit that detects the reference voltage,
- wherein the control unit corrects the result of the AD conversion in accordance with the detected reference voltage.
1 more element
An AD conversion device comprising:
- first and second power generation circuits;
- and
- a semiconductor device,
- wherein the semiconductor device includes:
- a first AD conversion unit that performs AD conversion on an input signal based on a first reference voltage to be supplied from the first power generation circuit;
- a second AD conversion unit that performs AD conversion on the first reference voltage based on a second reference voltage to be supplied from the second power generation circuit, and
- a control unit that corrects a result of the AD conversion by the first AD conversion unit in accordance with a result of the AD conversion by the second AD conversion unit.
4 more elements
Dependencies are inferred from the claim text.