CAJ | 학술논문

为了改进电流源电路的温度特性,提出了一种对温度不敏感的高精度电流源的实现方案.与现有的电路相比,本电路并没有改变原来的主电路结构,而仅仅在参考电流源中增加了一个小电阻.它在零下50℃到150℃的大范围内的温度效应被限制在1%-2%.该电阻在芯片上是利用闲置区域布线的,因此并不会增加集成电路的制造成本.另外,该电阻是连接在恒流源中,不会增加芯片的功耗.
위료개진전류원전로적온도특성,제출료일충대온도불민감적고정도전류원적실현방안.여현유적전로상비,본전로병몰유개변원래적주전로결구,이부부재삼고전류원중증가료일개소전조.타재령하50℃도150℃적대범위내적온도효응피한제재1%-2%.해전조재심편상시이용한치구역포선적,인차병불회증가집성전로적제조성본.령외,해전조시련접재항류원중,불회증가심편적공모.
To improve the temperature effect on the current source circuit, a novel high precision temperature--independent current source architecture was presented.A small aluminium resistor is added into reference current source circuit of the original major circuit, its influence on temperature range -50℃ to 150℃ can be limited to 1%～2%. The small resistor can be layouted on the spare area of the chip, so the cost of the Integrate Circuit(IC) will not increase. No chip power consumption caused by the resistor will be increased because the resistor works in a constant current source circuit.