精密76V高边电流检测放大器,带有电压输出 Precision 76V High-Side Current Sense Amplifiers with Voltage Output
The LMP8480 and LMP8481 are precision high-side current sense amplifiers that amplify a small differential voltage developed across a current sense resistor in the presence of high input common-mode voltages. These amplifiers are designed for bidirectional LMP8481 or unidirectional LMP8480 current applications and accept input signals with common-mode voltage range from 4 V to 76 V with a bandwidth of 270 kHz. Because the operating power supply range overlaps the input common-mode voltage range, the LMP848x can be powered by the same voltage that is being monitored. This benefit eliminates the need for an intermediate supply voltage to be routed to the point of load where the current is being monitored, resulting in reduced component count and board space.
The LMP848x family consists of fixed gains of 20, 60, and 100 for applications that demand high accuracy over temperature. The low-input offset voltage allows the use of smaller sense resistors without sacrificing system error. The wide operating temperature range of –40°C to 125°C makes the LMP848x an ideal choice for automotive, telecommunications, industrial, and consumer applications. The LMP8480 and LMP8481 are pin-for-pin replacements for the MAX4080 and MAX4081, offering improved offset voltage, wider reference adjust range and higher output drive capabilities. The LMP8480 and LMP8481 are available in a 8-pin VSSOP package.
输出电流 ≤20 mA
供电电流 88 µA
电路数 1
通道数 1
共模抑制比 100 dB
增益频宽积 270 kHz
输入补偿电压 80 µV
输入偏置电流 6.3 µA
工作温度Max 125 ℃
工作温度Min 40 ℃
3dB带宽 270 kHz
共模抑制比Min 124 dB
电源电压Max 76 V
电源电压Min 4.5 V
安装方式 Surface Mount
引脚数 8
封装 VSSOP-8
封装 VSSOP-8
工作温度 -40℃ ~ 125℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LMP8480MMX-S/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LMP8480MME-S/NOPB 德州仪器 | 类似代替 | LMP8480MMX-S/NOPB和LMP8480MME-S/NOPB的区别 |