Adjustable reference current generator, semiconductor device and adjustable reference current generating method

A semiconductor device comprising an adjustable reference current supplier for supplying a reference current with an instantaneous value varying in accordance with an adjustment signal representing a target current,

• said adjustable reference current supplier comprising:
• a reference current generation part for generating a reference current having a current value which is corresponding to said adjustment signal supplied thereto,
• a detection current generation part for generating a detection current having a current value which is m (where the m denotes 1 or more) times as large as a current value of said reference current,
• a detection voltage generation part with a first resistor for generating a detection voltage having a voltage value corresponding to a voltage drop across said first resistor in response to said detection current,
• a monitor voltage generation part including a second resistor having a resistance value which is 1/n (where the n denotes greater than 1) times as large as a resistance value of said first resistor and a terminal to which an external monitor current is suppliable, and for generating a monitor voltage having a voltage value which value corresponds to a voltage drop across said second resistor in response to said monitor current supplied thereto.