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AD8418AWHRZ

AD8418AWHRZ

数据手册.pdf
ADI(亚德诺) 电子元器件分类

Current Sense Amplifiers High Common Mode Cur Sense -3V to 80V

Product Details

The AD8418A is a high voltage, high resolution current shunt amplifier. It features an initial gain of 20 V/V, with a maximum ±0.15% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. The AD8418A offers excellent input common-mode rejection from −2 V to +70 V. The AD8418A performs bidirectional current measurements across a shunt resistor in a variety of automotive and industrial applications, including motor control, power management, and solenoid control.

The AD8418A offers breakthrough performance throughout the −40°C to +150°C temperature range. It features a zero drift core, which leads to a typical offset drift of 0.1 μV/°C throughout the operating temperature range and the common-mode voltage range. The AD8418A is qualified for automotive applications. The device includes EMI filters and patented circuitry to enable output accuracy with pulse-width modulation PWM type input common-mode voltages. The typical input offset voltage is ±100 μV. The AD8418A is offered in 8-lead MSOP and SOIC packages.

**Applications**

.
High-side current sensing in

Motor controls

Solenoid controls

Power management

.
Low-side current sensing
.
Diagnostic protection

### Features and Benefits

.
Typical 0.1 µV/°C offset drift
.
Maximum ±200 µV voltage offset over full temperature range
.
2.7 V to 5.5 V power supply operating range
.
Electromagnetic interference EMI filters Included
.
High common-mode input voltage range

−2 V to +70 V continuous

−4 V to +85 V survival

.
Minimum DC common-mode rejection ratio CMRR: 90 dB
.
Initial gain = 20 V/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
AD8418AWHRZ中文资料参数规格
技术参数

供电电流 4.1 mA

电路数 1

通道数 1

共模抑制比 86 dB

输入电容 2.00 pF

输入阻抗 200 kΩ

工作温度Max 125 ℃

工作温度Min -40 ℃

3dB带宽 250 kHz

增益带宽 86 dB

共模抑制比Min 85dB ~ 95dB

电源电压Max 5V ~ 7V

封装参数

安装方式 Surface Mount

引脚数 8

封装 SOIC-8

外形尺寸

封装 SOIC-8

物理参数

工作温度 -40℃ ~ 150℃

其他

产品生命周期 Active

包装方式 Tube

制造应用 Aerospace and Defense, Unmanned Systems, Avionics

符合标准

RoHS标准 RoHS Compliant

含铅标准 Contains Lead

军工级 Yes

AD8418AWHRZ引脚图与封装图
AD8418AWHRZ电路图

AD8418AWHRZ电路图

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