CMOS adjustable bandgap reference with low power and low voltage performance

Year	Description
2002	Invention patented by S. Chen Sean and Don R. Sauer on August 15th, 2002. Abstract: A voltage reference circuit is arranged in a CMOS process based technology to provide a configurable voltage reference. The voltage reference includes bipolar transistors that are implemented as parasitic devices in the CMOS process. Two of the bipolar transistors are configured to generate a .DELTA.Vbe signal in the voltage reference circuit. An error amplifier cooperates with the two bipolar transistors via a control signal such that the control signal is related to .DELTA.Vbe/R. A first current source is coupled to another bipolar device, which is parallel connected to a resistor divider. The output of the resistor divider provides a divided reference signal that is related to the Vbe of the other bipolar device. Another resistor is coupled between a second current source and the output of the resistor divider such that an adjustable/temperature compensated reference signal is provided.
Source: selected by the editor from original sources.

Invention: CMOS adjustable bandgap reference with low power and low voltage performance