Semiconductor device and cell potential measuring device
AssigneeSony Semiconductor Solutions Corporation
InventorsYuri Kato, Koji Ogawa
Life of this patent
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Abstract
The present disclosure relates to a semiconductor device and a cell potential measuring device capable of improving measurement accuracy of a potential of a solution. A semiconductor device includes a read electrode that reads a potential of a solution, a differential amplifier, a first capacitor connected in series in a loop feeding back an output of the differential amplifier to a second input different from a first input from the read electrode, a resistance element connected in parallel with the first capacitor, and a second capacitor connected between a reference electrode indicating a reference potential and the second input. The present disclosure can be applied to, for example, a cell potential measuring device.
Claims17
A semiconductor device, comprising:
- a read electrode configured to read a potential of a solution;
- a differential amplifier including a first input terminal, a second input terminal, and an output terminal, wherein
- the first input terminal is configured to receive a first input indicating the read potential,
- the second input terminal is configured to receive a second input, and
- the output terminal is configured to provide an output of the differential amplifier;
- a first capacitor connected with the differential amplifier in series in a loop, wherein the loop feeds back the output of the differential amplifier to the second input terminal of the differential amplifier;
- a resistance element connected in parallel with the first capacitor;
- and
- a second capacitor connected between a reference electrode and the second input terminal, wherein the reference electrode indicates a reference potential.
A cell potential measuring device, comprising:
- a read electrode configured to read a potential of a cell in a solution;
- a differential amplifier including a first input terminal, a second input terminal, and an output terminal, wherein
- the first input terminal is configured to receive a first input indicating the read potential,
- the second input terminal is configured to receive a second input, and
- the output terminal is configured to provide an output of the differential amplifier;
- a first capacitor connected with the differential amplifier in series in a loop, wherein the loop feeds back the output of the differential amplifier to the second input terminal of the differential amplifier;
- a resistance element connected in parallel with the first capacitor;
- and
- a second capacitor connected between a reference electrode and the second input terminal, wherein the reference electrode indicates a reference potential.
Dependencies are inferred from the claim text.