江苏润石:RS846xP系列增强压摆率运算放大器

Release time:2024-12-09
author:AMEYA360
source:江苏润石
reading:1136

  压摆率(Slew Rate)决定着输出信号建立的时间,包括Low to High和High to Low两种情况。运算放大器有很多指标是互相掣肘的,比如带宽与功耗,带宽越高,功耗就越大;通常芯片设计上,压摆率与单位增益带宽参数相对应,也就是压摆率以满足单位增益带宽为设计目标,如果要在这种设计架构的运算放大器里选择高压摆率的型号,就要选单位增益带宽高的型号,相应的,芯片功耗也就必然提高。

  在各种运动控制系统,对马达驱动的电流、电压的检测要求响应速度尽可能高,除了放大回路能快速对信号进行调理外,也要求输出信号能够快速的建立起来,以让控制系统能快速识别到信号,为满足这类应用,增强压摆率的运算放大器应运而生。

江苏润石:RS846xP系列增强压摆率运算放大器

  RS846xP系列系列运算放大器包括单路的RS8461P、双路的RS8462P和四路的RS8464P三款,采用SR加速设计方案,大幅提高压摆率参数,同时进一步优化失调电压等参数,以使其能满足更多的应用场景。

  RS846xP采用高压BCD 工艺设计,主要参数特性如下:

  Ø 高压摆率 24V/μs;

  Ø 单位增益带宽10MHz;

  Ø 输入失调电压低至1mV(Max);

  Ø 输入偏置电流低至10pA;

  Ø 低功耗2.2mA

  Ø 过载恢复时间0.35μs;

  Ø 轨对轨输出;

  Ø 输出短路保护;

  Ø 电源纹波抑制比PSRR 101dB;

  Ø 共模抑制比CMRR 110dB;

  Ø 开环增益124dB;

  Ø 宽工作电压范围,4.5V~32V;

  Ø 扩展工业级工作温度范围-40°C~125°C。

江苏润石:RS846xP系列增强压摆率运算放大器

  RS8461P提供标准SOT23-5封装,RS8462P提供标准SOP8封装,RS8464P提供标准SOP14封装,封装尺寸和管脚定义都与当前市场通用产品兼容,欢迎各界工程师朋友索样评测。

  润石科技高压摆率运算放大器产品家族

江苏润石:RS846xP系列增强压摆率运算放大器

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