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    首页产品索引LMP8278Q-Q1

    LMP8278Q-Q1

    购买收藏
    LMP8278Q 高模式 14 x 增益精密感应放大器

    制造商:TI

    产品信息

    描述 The LMP8278 is a fixed 14x gain precision current sense amplifier. The part amplifies and filters small differential signals in the presence of high common mode voltages. The part operates from a single 5V supply voltage. With an input common mode voltage range from -2V to +28V the gain is very precise (±0.5%). The part can handle common mode voltages in the range -2V to +40V with relaxed specifications. The LMP8278 is a member of the Linear Monolithic Precision (LMP) family and is ideal for unidirectional current sensing applications. The parameter values that are shown in the Electrical Characteristics table are 100% tested and all bold values are also 100% tested over temperature, unless otherwise noted.The part has a precise gain of 14x which is adequate in most targeted applications to drive an ADC to its full scale value. The fixed gain is achieved in two separate stages, a preamplifier with a gain of 7x and an output stage buffer amplifier with a gain of 2x. The connection between the two stages of the signal path is brought out on two pins to enable the possibility to create an additional filter network around the output buffer amplifier. These pins can also be used for alternative configurations with different gain as described in .The LMP8278Q incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies. Reliability qualification is compliant with the requirements and temperature grades defined in the AEC Q100 standard.特性TCVos ±15μV/°C Max CMRR 80 dB Min Input Offset Voltage ±2 mV max CMVR −2V to 40V Operating Ambient Temperature Range −40°C to 125°C Single Supply OperationMin / Max Limits 100% Tested unless Otherwise NotedLMP8278Q Available in Automotive AEC-Q100 Grade 1 Qualified VersionAll trademarks are the property of their respective owners.

    电路图、引脚图和封装图

    在线购买

    型号制造商描述购买
    LMP8278QMM/NOPBTICurrent Sense Amplifier 1 Circuit 8-VSSOP 立即购买
    LMP8278QMMX/NOPBTILMP8278Q-Q1 AEC-Q100, 40V, LOW-/ 立即购买
    LMP8278QMME/NOPBTILMP8278Q-Q1 AEC-Q100, 40V, LOW-/ 立即购买

    技术资料

    标题类型大小(KB)下载
    开关电源电流测量PDF367 点击下载
    H 桥中的电流感应PDF373 点击下载
    适用于三相系统的低漂移低侧电流测量 (Rev. A)PDF373 点击下载
    具有PWM 抑制功能的高侧驱动、高侧螺线管监视器 (Rev. A)PDF380 点击下载
    Low-Drift, Low-Side Current Measurements for Three-Phase SystemsPDF105 点击下载
    可编程逻辑控制器 (PLC) 中的电流感应PDF99 点击下载

    应用案例更多案例

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