A low power supply band-gap current reference includes a 1^st P-N junction device, a 2^nd and P-N junction device, a 1^st current source, a 2^nd current source, a 1^st resistor, a 2^nd resistor, a 3^rd resistor, an operational amplifier, and a current mirror. The 1^st and 2^nd P-N junction devices are operably coupled to the 1^st and 2^nd current sources, respectively. The 2^nd P-N junction device is a larger device than the 1^st P-N junction device. The 2^nd resistor is operably coupled in parallel with the 1^st P-N junction device and the 2^nd resistor is coupled in series with the 2^nd P-N junction device. The 3^rd resistor is coupled in parallel with the series combination of the 2^nd resistor and 2^nd P-N junction device. The operational amplifier is coupled to control the 1^st and 2^nd current sources based on the voltage imposed across the 1^st and 2^nd resistors. The current mirror is operably coupled to mirror the current of the 1^st and/or 2^nd current source to provide a band-gap reference current.