| 主权项 |
1. A temperature-compensated voltage reference circuit, comprising:
a current mirror portion including:
at least two cascaded transistor pairs configured to generate a first control signal, wherein the at least two cascaded transistor pairs include a first transistor pair of p-channel metal-oxide-semiconductor (PMOS) transistors and a second transistor pair of n-channel metal-oxide-semiconductor (NMOS) transistors;a feedback circuit coupled to the at least two cascaded transistor pairs, wherein the feedback circuit includes a third transistor pair, and wherein the feedback circuit is configured to generate a second control signal; anda fourth transistor pair configured to establish a stable condition in the current mirror portion upon start-up, wherein the fourth transistor pair includes a first jump start transistor and a second jump start transistor, wherein the first jump start transistor is coupled to the first transistor pair, and wherein the second jump start transistor is coupled to the second transistor pair; and a temperature-compensated output portion coupled to the current mirror portion, wherein the temperature-compensated output portion comprises a very low threshold voltage (Vt) transistor coupled in series with a negative temperature coefficient transistor, and wherein the first control signal and the second control signal are configured to change a magnitude of a current through the temperature-compensated output portion. |
