| 主权项 |
1. A reference voltage generator for generating a reference voltage signal, comprising:
first and second resistors having first terminals connected to a supply voltage, and second terminals that output first and second complementary-to-absolute-temperature (CTAT) reference currents, respectively; a first current mirror, connected between the second terminal of the first resistor and ground, that receives the first CTAT reference current and generates a first CTAT current; a second current mirror, connected between the second terminal of the second resistor and ground, that receives the second CTAT reference current and generates a second CTAT current; a third current mirror, connected between the supply voltage and the second current mirror, that receives the second CTAT current and generates a third CTAT current; a fourth current mirror, connected between the first and third current mirrors and the supply voltage, that receives the first and third CTAT currents and generates a proportional-to-absolute-temperature (PTAT) output current; a diode having a cathode connected to ground; and a third resistor having a first terminal connected to the fourth current mirror for receiving the PTAT output current and a second terminal connected to an anode of the diode, wherein the reference voltage signal is output from the first terminal of the third resistor. |
