深圳市杰顺创科技有限公司-2
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深圳市杰顺创科技有限公司-2
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| 数量 | 单价 |
|---|---|
| 50+ | ￥1.685 |
| 500+ | ￥1.56 |
| 3000+ | ￥1.455 |
规格参数
数据手册 PDF
商品详情
规格参数
| 制造商 | Analog Devices Inc. |
| 产品种类 | 电流灵敏放大器 |
| RoHS | 是 |
| 系列 | AD8418A |
| 通道数量 | 1 Channel |
| Vcm - 共模电压 | - 2 V to 70 V |
| CMRR - 共模抑制比 | 100 dB |
| Ib - 输入偏流 | 130 uA |
| Vos - 输入偏置电压 | 200 uV |
| 最小工作温度 | - 40 C |
| 最大工作温度 | + 125 C |
| 安装风格 | SMD/SMT |
| 封装 / 箱体 | MSOP-8 |
| 放大器类型 | Current Sense |
| 描述/功能 | Bidirectional zero drift current sense amplifier |
| 输入类型 | Common Mode |
| 输出类型 | Buffered |
| 关闭 | No Shutdown |
| 3dB带宽 | 250 kHz |
| 增益误差 | 0.2 % |
| 增益V/V | 20 V/V |
| PSRR - 电源抑制比 | 80 dB |
| SR - 转换速率 | 1 V/us |
| 单位重量 | 140 mg |
数据手册 PDF
商品详情
Analog Devices Inc. AD8418A 电流感应放大器
亚德诺半导体 AD8418A 是一款高压、高分辨率分流放大器，设定的初始增益为 20V/V，在整个温度范围内的最大增益误差为±0.2%。该器件在 40°C 到 +125°C 的整个工作温度范围内都具有优异性能，适合汽车应用。该器件集成 EMI 滤波器和专利电路，在脉冲宽度调制(PWM)类输入共模电压下具有高输出精度。AD8418A 输入失调电压的典型值为 ±200μV，和达 86dB 出色的输入共模抑制比，DC 至 10kHz 范围，采用 2V 到 +70V 的电源电压。 零漂移核心实现整个工作温度和共模电压范围内典型值达 0.1 V/°C 的失调漂移。该设计使 D8418A 电流检测放大器能够在分流电阻上进行双向电流的测量，适合各种汽车和工业应用，包括电机控制、电池管理和电磁阀控制等。The EMI filters and patented circuitry enable output accuracy with pulse-width modulation (PWM) type input common-mode voltages. AD8418A offers a typical input offset voltage of ±200μV and an excellent input common-mode rejection ratio of 86dB, dc to 10kHz from −2V to +70V. The zero drift core leads to a typical offset drift of 0.1μV/°C throughout the operating temperature and the common-mode voltage range.
The design makes the AD8418A Current Sense Amplifiers ideal for performing bidirectional current measurements across a shunt resistor in a variety of automotive and industrial applications including motor control, power management, and solenoid control.
视频
特性
- Typical 0.1μV/°C offset drift
- Maximum ±400μV voltage offset over full temperature range
- 2.7V to 5.5V power supply operating range
- Electromagnetic interference (EMI) filters included
- High common-mode input voltage range
- Common-mode rejection ratio (CMRR): 86dB, dc to 10kHz
- Initial gain = 20V/V
- Wide operating temperature range:
- AD8418AWB: −40°C to +125°C
- AD8418AWH:−40°C to +150°C
- Bidirectional operation
- Available in 8-lead SOIC and 8-lead MSOP
- Qualified for automotive applications
应用
- High-side current sensing in
- Motor controls
- Solenoid controls
- Power management
- Low-side current sensing
- Diagnostic protection
FUNCTIONAL BLOCK DIAGRAM
