US Patent 7898332 Semiconductor integrated circuit device
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A semiconductor integrated circuit device includes: an amplifier circuit which respectively has one or more input terminals and one or more output terminals; a replica circuit which has the same DC characteristics as those of the amplifier circuit; a reference voltage generation circuit which is connected to a bias terminal of the replica circuit, and which generates a predetermined reference voltage at the bias terminal; and a feedback circuit which takes a difference between the reference voltage generated at the bias terminal of the replica circuit and the voltage generated at a bias terminal of the amplifier circuit, and which performs feedback control by providing negative feedback of the difference to the bias terminal of the amplifier circuit so that the voltage generated at the bias terminal of the amplifier circuit is made equal to the reference voltage generated at the bias terminal of the replica circuit.
US Patent 07898332 Semiconductor integrated circuit device US Patent 7898332 Semiconductor integrated circuit device
US Patent 07898332 Semiconductor integrated circuit device
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