Datasheet > AD8417-2

AD8417-2

更新时间： 2024-11-26 14:58:07

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
15页	762K
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双向零点漂移电流检测放大器

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AD8417-2 数据手册

Data Sheet

AD8417-2

1 mm × 1.9 mm WLCSP, High Common-Mode, Bidirectional, Zero Drift, Current

Sense Amplifier

FEATURES

FUNCTIONAL BLOCK DIAGRAM

► Typical 0.1 µV/°C offset drift

► Maximum ±400 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 +42 V continuous

► Initial gain = 60 V/V

► Wide operating temperature range: −40°C to +125°C

► Bidirectional operation

► Dual channel in a small 1 mm × 1.9 mm WLCSP

► Common-mode rejection ratio (CMRR): 86 dB, dc to 10 kHz

APPLICATIONS

Figure 2. Functional Block Diagram

► High-side current sensing in:

► Motor controls

GENERAL DESCRIPTION

► Solenoid controls

The AD8417-2 is a high voltage, high resolution, and dual channel

current sense amplifier. It features an initial gain of 60 V/V, with a

maximum ±0.3% gain error over the entire temperature range. The

AD8417-2 performs bidirectional current measurements across a

shunt resistor in a variety of applications, including motor control,

power management, and solenoid control.

► Power management

► Low-side current sensing

► Diagnostic protection

TYPICAL APPLICATION CIRCUIT

The AD8417-2 offers breakthrough performance throughout the

−40°C to +125°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 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 ±200 µV.

The AD8417-2 is offered in a small 10-ball 1 mm × 1.9 mm WLCSP.

It requires a smaller board area than a typical single-channel

current sense amplifier, increasing channel density, without compro-

mising performance.

Figure 1. 3-Phase Motor Control

Table 1. Related Devices

Part No.

Description

AD8205

AD8206

AD8207

AD8210

AD8417

AD8418A

Current sense amplifier, gain = 50

Current sense amplifier, gain = 20

High accuracy current-sense amplifier, gain = 20

High speed current sense amplifier, gain = 20

High accuracy current sense amplifier, gain = 60

High accuracy current sense amplifier, gain = 20

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog

Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to

change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

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TECHNICAL SUPPORT

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AD8417WBRZ	ADI	获取价格	Bidirectional, Zero Drift, Current Sense Amplifier
AD8417WBRZ-RL	ADI	获取价格	Bidirectional, Zero Drift, Current Sense Amplifier
AD8417WHRMZ	ADI	获取价格	Bidirectional, Zero Drift, Current Sense Amplifier
AD8417WHRMZ-RL	ADI	获取价格	Bidirectional, Zero Drift, Current Sense Amplifier

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