Device for correcting input offset voltage
A technology of offset voltage and correction device, which is applied to the components of the amplification device, electrical components, amplifiers, etc., can solve the problems of high circuit cost, inability to increase the working bandwidth, and deterioration of operational amplifier characteristics, so as to achieve the goal of improving the application Effect
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[0029] Please refer to FIG. 3 for a functional block diagram of the input offset voltage correction device of the present invention. The input offset voltage correction device includes a buffer unit 32, a micro-control unit 31, a switch unit 34, and an offset voltage adjustment unit 33 for adjusting the input offset voltage of the operational amplifier 30. The signal input by the signal input terminal 35 is transmitted to the operational amplifier 30 through the switch unit 34, and the signal is processed by the operational amplifier 30 and then output to the micro-control unit 31 for application. In order to solve the influence caused by the input offset voltage of the operational amplifier 30, the micro-control unit 31 sets the operation mode switching signal in the register unit 32 to control the switch unit 34 to put the input offset voltage correction device in a normal operation mode and Switch between an offset voltage correction mode. When the input offset voltage correcti...
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