rail n. 1.(围栏等的)横木,横档;(钉帽架等用的)横条,栏杆,扶手;〔pl.〕围栏。 2.轨道;钢轨;铁路;〔pl.〕铁路股票。 a towel rail (钉在墙上的)挂毛巾的横木。 a rail advice (铁路)到货通知单。 zero-length rail 【火箭】超短型导轨。 by rail 乘火车,用火车。 get [go] off the rails 出轨;越轨。 off the rails 出轨;扰乱秩序;〔比喻〕发狂;越轨 ( He is a very reliable person he has never gone off the rails. 他这人十分可靠,从来不越轨逾矩)。 ride (sb.) on a rail 〔美国〕(把人)捆在横杆上抬着赶走〔一种私刑〕。 run off the rails 出轨,脱轨。 vt. 1.用围栏围 (in off), 用栏杆围住,装栏杆于。 2.在…铺铁轨;用铁路运输。 vi. 坐火车旅行。 n. 【动物;动物学】秧鸡。 vi. 咒骂,责备;抱怨 (against at)。
A push - pull output stage was used in the circuit to extend output voltage from rail to rail and a class ab biasing is used to improve the power efficiency of the circuit 输出级采用共源结构的互补推挽输出结构,提高了输出电压的动态范围。并使用甲乙类的输出结构,提高了电路的功率效率。
Usually the low power operational amplifier is designed with rail to rail output stage , whose signal dynamirange is small , its output driving force is not strong , here it is designed with voltage displacement stage , and the strong driving force and the low power consumption in this circuit are achieved . with 5v single power , this amplifier consumes only several a , 100khz unity - gain frequency , achieves 80db dc open gain and 55 phase margin for a 100pf load capacitance and a 1m load resistance and other advantages 通常设计的低功耗轨对轨输出运算放大器中,由于信号的动态范围比较小,它的输出驱动能力不强,这里设计的是采用电平位移电路同时实现了电路的强驱动能力与低功耗,它具有在单电源电压5v的条件下,静态工作电流只有几微安,单位增益带宽达100k ,开环增益能达80db以上,相位裕度也能达55度,输出源沉电流达500微安以上等优点。
A complementary input stage , which consists of a p - channel pair and a n - channel pair , was used in the circuit , so that the common mode input range can extend from rail to rail . a dcls is used to shift the n - transistor curve leftward to overlap the p - transistor curve properly and keep constant transconductance in the whole common mode input range 输入级采用pmos差分输入对和nmos输入差分对并联的结构,从而实现共模输入范围扩大到电源的正负两端,并且通过两个源级跟随器平移nmos输入管跨导曲线,使nmos输入管和pmos输入管跨导曲线的适当交叠,从而保持了这个输入级的跨导在整个共模输入范围内保持恒定。