查询词典 input offset current

Ffset voltage at the input of an operational amplifier is comprised of two components, these components are identified in specifying the amplifier as input offset voltage and input bias current.

P的失调电压有两个主要的来源，输入偏置电流和输入失调电压。

These two pairs exhibit different offsets and bias currents, so when the applied input common-mode voltage changes, the AMPLIFIER input offset voltage and input bias current does also.

由于这两个差分对有不同的失调电流和偏置电流，因此加到输入共模电压变化，放大器的输入偏置电压和输入偏压电流也跟着改变。

The input offset voltage is fixed for a particular amplifier, however the contribution due to input bias current is dependent on the circuit configuration used. For minimum offset voltage at the amplifier input without circuit adjustment the source resistance for both inputs should be equal.

对于一个给定的OP，输入失调电压就已经给定了，但是由输入失调电流所带来的失调电压与所采用的电路结构有关系为了减小输入偏置电流所带来的失调电压，应该使得使得同、反相输入端对地的直流电阻相等，使得由于偏置电流在输入电阻上压降所带来的失调电压相互抵消。

This article points out the difference in the definition of input offset current about analog Integrated Operational Amplifier Circuit in common teaching material for analog electronics.

指出在高等院校工科电气电子类模拟电子技术课程常用教材和参考书中关于模拟集成运算放大器输入失调电流IIO的定义不一致的问题。

Charge measurements made with an electrometer are subject to a number of error sources, including input offset current, voltage burden, generated currents, and low source impedance.

用静电计进行电荷测量时容易受到几种误差源的影响，其中包括：输入偏置电流、输入端压降、产生电流和低的源阻抗等。

The readout system can efficiently reduce the influences from leakage current, input offset, process parameter instability, and other causes. The value of input weak current signal can be obtained simply through demarcation.

读出电路系统可以有效地减小漏电流、输入失调、外来干扰和工艺参数不稳定等带来的影响，通过简单的标定和换算即可得到微弱电流信号的大小。

As an ammeter, the electrometer is capable of measuring extremely low currents, limited only by theoretical limits or by the instrument's input offset current. It also has a much lower voltage burden than conventional DMMs.

做为安培计，静电计能够测量仅由理论极限值或仪器的输入偏置电流所限制的微弱电流，而且其输入端压降比普通的数字多用表要低的多。

R2 and R4 are chosen to minimize errors due to input offset current as outlined in the section describing the photocell amplifier.

R2和R4用来降低因输入失调电流产生的误差，其原理与前文光电二极管放大器所述一致。R3用于抑制灯泡L1初次通电时的浪涌电流。

The amplifiers chosen must be compensated for unity-gain operation and R6 and R7 must be chosen to minimize output errors due to input offset current.

注释 2：(NE5532 注) R4U i =0 R3 首先，对节点处的电流讨论是没有意义的，流入节点的电流一定等于流出节点的电流，再者，I3 与 I4 不是等大反相的关系，分析如下： 40 An Applications Guide for OP Amps 由于此时 OPA1 处于反相放大状态，其输出电压 U o1 压误差按照设计思路，此时 A2 的输出应该等于 U o1 ，则电流方向如上图。

S1 is then changed to position 1. The voltage stored on C1 is inserted between the output and inverting input of the amplifier and the output of the amplifier changes by VIN to maintain the amplifier input at the input offset voltage. The output then changes from (VOS + IbiasR2) to (VIN + IbiasR2) as S1 is changed from position 2 to position 1. Amplifier bias current is supplied through R2 from the output of the amplifier or from C2 when S1 is in position 2 and position 1 respectively. R3 serves to reduce the offset at the amplifier output if the amplifier must have maximum linear range or if it is desired to DC couple the amplifier.

接着 S1 拨到位置 1，使 C1 的电压加在放大器的输出端和反相输入端之间，(由于电容端电压不能突变，所以)输出端的电压将产生大小等于 VIN 的变化，使放大器输入端维持输入失调电压，即当开关 S1 从位置 2 拨到位置 1 时，输出端电压将从(VOS + IbiasR2)变为(VIN + IbiasR2)。S1 处于位置 2 时，放大器的偏置电流是由输出端经电阻 R2 提供的，当 S1 转向位置 1 时则由 C2 提供。R3 的作用是降低输出失调电压，如果要求放大器具有最大的线性范围，或者采用直流耦合，就应该使用该电容。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。