Patent attributes
An integrated circuit according to one embodiment includes a first transimpedance amplifier and a second transimpedance amplifier. In the integrated circuit, one of the first transimpedance amplifier and the second transimpedance amplifier is set into an enabled state and the other is set into a disabled state. The first transimpedance amplifier and the second transimpedance amplifier share an input transistor. The first transimpedance amplifier has a first resistor provided between a feedback node thereof and an input node connected to the input transistor. The second transimpedance amplifier has a second resistor provided between a feedback node thereof and the first resistor. A feedback resistor of the second transimpedance amplifier is configured with a series connection of the first resistor and the second resistor.
