CURRENT VOLTAGE CONVERSION CIRCUIT, LIGHT RECEIVING APPARATUS, AND LIGHT TRANSMISSION SYSTEM

摘要

A current voltage conversion circuit includes first to fourth signal amplifiers; and first and second resistive passive elements, an input terminal of the first signal amplifier being connected to a terminal for inputting a current signal, one and the other terminals of the first resistive passive element being connected to output and input terminals of the first signal amplifier, respectively, an input terminal of the second signal amplifier being connected to a first connection point, input and output terminals of the third signal amplifier being connected to an output terminal of the second signal amplifier and the first connection point, respectively, an input terminal of the fourth signal amplifier being connected to a second connection point, and one and the other terminals of the second resistive passive element being connected to an output terminal of the fourth signal amplifier and the second connection point.

主权项

1. A current voltage conversion circuit, comprising:
first to fourth signal amplifiers for amplifying an input signal at a predetermined gain; and first and second resistive passive elements for providing a predetermined resistivity value, an input terminal of the first signal amplifier being connected to a terminal for inputting a current signal, one terminal of the first resistive passive element being connected to an output terminal of the first signal amplifier, and the other terminal of the first resistive passive element being connected to the input terminal of the first signal amplifier, an input terminal of the second signal amplifier being connected to a first connection point to which the output terminal of the first signal amplifier and one terminal of the first resistive passive element are connected, an input terminal of the third signal amplifier being connected to an output terminal of the second signal amplifier, and an output terminal of the third signal amplifier being connected to the first connection point, an input terminal of the fourth signal amplifier being connected to a second connection point to which the output terminal of the second signal amplifier and one terminal of the third signal amplifier are connected, and one terminal of the second resistive passive element being connected to an output terminal of the fourth signal amplifier, and the other terminal of the second resistive passive element being connected to the second connection point.