| 摘要 |
PCT No. PCT/US81/00699 Sec. 371 Date May 18, 1981 Sec. 102(e) Date May 18, 1981 PCT Filed May 18, 1981.A voltage reference circuit (10) produces a reference voltage at output terminals (66, 76). The output reference voltage is substantially independent of variations in the supply voltage, integrated circuit manufacturing processes and temperature. A current reference circuit (30, 32, 34, 36, 38, 56 and 84) produces constant emitter currents in bipolar transistors (40, 70). The VBE of the bipolar transistors (40, 70) is a stable reference due to the constant emitter current. The bipolar transistors (40, 70) are manufactured with similar geometries to eliminate dependence of the reference voltage upon bipolar processing variations. The VBE of the bipolar transistor (40) produces a reference current which is provided to the base terminal of bipolar transistor (70). The VBE of bipolar transistor (70) is further utilized to produce the output reference voltage. A temperature stabilization circuit (58, 82, 86, 90, 92 and 94) is provided with an opposite temperature coefficient from that of the bipolar transistors (40, 70). The temperature stabilization circuit is connected to counteract the influence of the temperature coefficient of the bipolar transistors on the output reference voltage. There is thus established an output reference voltage which is substantially independent of supply voltage, processing and temperature.
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