Patent ID: 7304532

Claim:
A voltage reference generator comprising: a current source for generating a source current in response to a control voltage, wherein the current source includes a plurality of transistors; a current sink for conducting the source current to generate a reference voltage, wherein the current sink is comprised of one transistor that conducts only the entire source current generated by all of the transistors of the current source; and a switch block that is coupled between the current source and the current sink and that is configurable to determine a level of the source current conducted through the current sink, and wherein the switch block is comprised of a plurality of fuses; and wherein any current path formed through the current source, the current sink, and the switch block is a respective serial connection of only a high supply voltage, a respective one transistor of the current source, a respective one of the fuses, the one transistor of the current sink, and a low supply voltage.