Semiconductor integrated circuit
AssigneeSemiconductor Technology Academic Research Center
InventorsKazuyuki Wada, Shigetaka Takagi, Nobuo Fujii
Life of this patent
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Abstract
A semiconductor integrated circuit comprises an amplifier circuit including a current output amplifier, a load resistor having one end connected to an output terminal of the current output amplifier and a voltage control circuit having an input terminal connected to the one end of the load resistor and an output terminal connected to an other end of the load resistor. The input terminal of the amplifier circuit serves as an input terminal of the current output amplifier, and the output terminals of the amplifier circuit serve as the individual ends of the load resistor.
Claims23
A semiconductor integrated circuit comprising:
- an amplifier circuit including a current output amplifier configured to covert an input signal to a current signal, a load resistor having a first end connected to an output terminal of said current output amplifier and a second end, and a voltage control circuit having an input terminal connected to said first end of said load resistor and an output terminal connected to said second end of said load resistor,
- said amplifier circuit having an input terminal serving as an input terminal of said current output amplifier and output terminals serving as said first and second ends of said load resistor.
A semiconductor integrated circuit comprising:
- an amplifier circuit including a current output amplifier configured to convert an input signal to a current signal, a first resistor having a first end connected to an output terminal of said current output amplifier and a second end, a first voltage control circuit having an input terminal connected to said first end of said first resistor, a second resistor having a first end connected to said output terminal of said current output amplifier and a second end, and a second voltage control circuit having an input terminal connected to said first end of said second resistor and an output terminal connected to said second end of said second resistor,
- said amplifier circuit having an input terminal serving as an input terminal of said current output amplifier and output terminals serving as said output terminal of said current output amplifier and said second ends of said first and second resistors.
A semiconductor integrated circuit comprising:
- an amplifier circuit including a current output amplifier configured to convert an input signal to a current signal, a first resistor having a first end connected to an output terminal of said current output amplifier, a first voltage control circuit having an input terminal connected to said first end of said first resistor and a second end, a second resistor having a first end connected to said output terminal of said current output amplifier and a second end, and a second voltage control circuit having an input terminal connected to said second end of said first resistor and an output terminal connected to said second end of said second resistor,
- said amplifier circuit having an input terminal serving as an input terminal of said current output amplifier and output terminals serving as said output terminal of said current output amplifier and said second ends of said first and second resistors.
A semiconductor integrated circuit comprising:
- an amplifier circuit including a current output amplifier configured to covert an input signal to a current signal, a first resistor having a first end connected to an output terminal of said current output amplifier and a second end, a differential operational amplifier having a positive input terminal applied with a constant voltage, a negative input terminal connected to said first end of said first resistor and an output terminal connected to said second end of said first resistor, a second resistor having a first end connected to said output terminal of said current output amplifier and a second end, and a first voltage control circuit having an input terminal connected to said second end of said first resistor and an output terminal connected to said second end of said second resistor,
- said amplifier circuit having an input terminal serving as an input terminal of said current output amplifier and output terminals serving as said output terminal of said current output amplifier and said second ends of said first and second resistors.
Dependencies are inferred from the claim text.