High CMR Isolation Amplifiers

Description The HCPL-7800 high CMR isolation amplifier provides a unique combination of features ideally suited for motor control circuit designers. The product provides the precision and stability needed to accurately monitor motor current in high noise motor control environments, providing for

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HP

安捷伦

15 kV/關s Common-Mode Rejection at VCM = 1000 V

Description The HCPL-7800(A) isolation amplifer family was designed for current sensing in electronic motor drives. In a typical implementation, motor currents flow through an external resistor and the resulting analog voltage drop is sensed by the HCPL-7800(A). A differential output voltage is cre

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AVAGO

安华高

隔离放大器

HCPL-7800A 隔离放大器系列主要面向电子电机驱动的电流感应设计。HCPL-7800A 可在实施典型驱动程序中检测电机电流通过外部电阻所产生的模拟电压降。并在 HCPL-7800A 光隔离屏障的另一端产生差分输出电压。这种差分输出电压与电机电流成正比，可以通过运算放大器转换成单端信号。由于现今的开关变频电机驱动系统中普遍存在共模电压在数十纳秒内出现几百伏摆幅的情况，因此 HCPL-7800A 采用可承受（最少 10 kV/μs）的超高共模瞬态变化压摆率的设计。\n\nHCPL-7800A 隔离型放大器 的共模瞬变抑制能力可在高噪声的电机控制环境下精确监测电机电流，其体现的精确性和稳定性足 ·VCM = 1000V 时达到 15kV/μs 共模抑制能力\n·紧凑可自动插入标准 8-pin DIP 封装\n·0.00025 V/V/°C 增益温度漂移\n·0.3mV 输入失调电压\n·100kHz 带宽\n·0.004% 非线性度\n·全球安全法规认证：\nUL 1577 (3750 Vrms/1 min)，CSA 和 IEC/EN/DIN EN 60747-5-2;

Broadcom

博通