【摘要】 本文介绍了带隙基准电压源的原理,实现了一个高精度的带隙基准电压源电路。此电路在-20℃￣100℃的温度范围内,有效温度系数为6.1ppm/℃;电源电压在1.6V￣2.0V变化时,其电源抑制比为103.7dB。更多还原

【Abstract】 A kind of bandgap-voltage-reference circuit is given for DAC. The precision and stableness is very important to the DAC. The principle of bandgap-voltage-reference is introduced and a high precision bandgap-reference-circuit is achieved, which has the temperature coefficient of 6.1ppm/℃ during the temperature from -20℃ to 100℃, and 103.7dB power supply restrain ratio during the power supply from 1.6V to 2.0V.更多还原