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ISL28213FUZ-T7是瑞萨电子推出的双路轨到轨输入/输出通用运算放大器,针对低功耗、宽温度范围、高阻抗输入等场景优化设计,兼具小尺寸封装与工业级可靠性,适用于工业传感、便携医疗、电池供电系统等多种应用。其核心特点可概括为:轨到轨全动态范围、超低静态功耗、宽温稳定、高阻抗适配。
作为轨到轨(Rail-to-Rail)运放,ISL28213FUZ-T7的输入电压范围覆盖电源轨(可接近Vdd和Vss),输出电压能实现满摆幅输出(接近电源轨的90%以上)。这一特性尤其适合单电源系统(如1.8V~5.5V供电),无需额外负电源即可处理接近电源地的低电平信号,显著提升信号动态范围,避免传统运放因输入输出范围受限导致的信号削波。
该器件静态电流仅90μA(每通道),远低于多数通用运放,可有效延长电池续航时间。结合1.8V~5.5V的宽单电源范围,完美适配便携设备(如可穿戴设备、手持测试仪器)、低功耗工业节点等电池供电系统,无需为功耗牺牲性能。
工作温度范围覆盖**-40℃~+125℃,满足工业级环境要求(如户外传感器、车载辅助系统);同时输入失调电压温漂仅5μV/℃**,温度变化时输出精度稳定,避免因温漂导致的信号误差,适合长期在极端温度下工作的场景。
输入偏置电流(Ib)与输入失调电流(Ios)均为1pA,属于极低偏置电流设计,能够处理高阻抗输入信号(如光电二极管、压电传感器、高阻应变片的输出)——若偏置电流过高,会导致高阻信号源的电压衰减,而1pA的水平可忽略此类影响,保证信号采集精度。
增益带宽积(GBP)2MHz、压摆率(SR)1V/μs,满足低速至中速信号处理需求(如100kHz以下的滤波、数据采集);噪声密度55nV/√Hz@1kHz,在通用运放中属于低噪声水平,适合音频前置放大、精密电压测量等对噪声敏感的应用。
采用8-MSOP封装(微型小外形封装),尺寸仅约3mm×3mm,相比传统DIP封装节省70%以上PCB空间,适合医疗设备(如血糖仪、血氧仪)、便携仪器等对体积敏感的产品。
作为瑞萨电子的工业级产品,ISL28213FUZ-T7经过严格的宽温测试与可靠性验证,符合工业级标准(如湿度、振动测试),可长期稳定工作在极端环境下。同时,瑞萨提供完整的技术支持与样品供应,便于客户快速原型开发与量产验证。
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