Current-splitting network

A current splitting network comprising a reference point, a voltage divider having a reference terminal connected to said reference point and first and second output terminals and generating a first voltage at said first output terminal and a second voltage at said second output terminal, said first voltage having a first value with respect to the potential of said reference point and said second voltage having a second value with respect to the potential of said reference point, said first and said second values having a predetermined ratio to one another, a first resistor, a first amplifier coupled between one end of said register and said first output terminal for holding the voltage at said one end of said first resistor substantially at said first voltage, a second resistor of a resistance value having a predetermined ratio to the resistance value of said first resistor, a second amplifier coupled between one end of said second resistor and said second output terminal for holding the voltage at said one end of said second resistor substantially at said second voltage, the other ends of said first and second resistors being connected to said reference point, and a constant current source connected to said reference point, whereby a current fed by said constant-current source is split to flow through said first and second resistors in accordance with the ratio between said first and second voltages and the ratio between the resistance values of said first and second resistors.