摘要
设计了一种地电流约为0.6μA的基于低压差线形稳压器的放大器电路.此放大器的突出优点是与foldback 限流保护电路融合在一起,使得芯片不需要专门的限流模块,大大减少了电流支路,实现超低功耗.
An operational amplifier (OP-AMP) with a ground current of about 0.6μA is presented. Moreover, this amplifier reaps the benefits of incorporating a foldback current limiting circuit,which enables the low-dropout voltage regulator without the need of a special current limiting subblock. Therefore,the object of ultra-low power is realized because of a great reduction in transistors and current limbs.
基金
国家自然科学基金资助项目(批准号:60371017)~~