Patent ID: 6946918

Claim:
A voltage/current converting circuit comprising: a differential circuit having a first input terminal coupled to receive an input voltage signal, a second input terminal coupled to receive a reference voltage signal and an output terminal for outputting an electrical current in response to a comparison of the input voltage signal and the reference voltage signal, the differential circuit comprising: a first transistor having a control terminal connected to the first input terminal, the first transistor having a first dimension; and a second transistor having a control terminal connected to the second input terminal, the second transistor having a second dimension that is different from the first dimension; and, a current mirror circuit connected to the output terminal, wherein the current mirror circuit comprises: a third transistor, which is a MOS transistor, having a source connected to a power supply voltage source and a drain and a control terminal connected to a drain of the first transistor; and a fourth transistor, which is a MOS transistor, having a source connected to the power supply voltage source and a drain connected to the output terminal and a control terminal connected to the control terminal of the third transistor.