Datasheet > ADA4571BRZ-RL

ADA4571BRZ-RL

更新时间： 2024-02-20 00:58:01

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管
页数	文件大小	规格书
22页	499K
描述
Integrated AMR Angle Sensor and Signal Conditioner

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技术参数
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ADA4571BRZ-RL 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	SOP,
针数：	8	Reach Compliance Code：	compliant
风险等级：	5.58	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	R-PDSO-G8	JESD-609代码：	e3
长度：	4.9 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	8
最高工作温度：	125 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	260	座面最大高度：	1.75 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.7 V
表面贴装：	YES	温度等级：	AUTOMOTIVE
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	30	宽度：	3.9 mm
Base Number Matches：	1

ADA4571BRZ-RL 数据手册

Integrated AMR Angle Sensor and Signal

Conditioner

ADA4571

Data Sheet

FEATURES

FUNCTIONAL BLOCK DIAGRAM

VDD

High precision 180° angle sensor

Maximum angular error of 0.5°

ADA4571

VTEMP

TEMPERATURE SENSOR

BRIDGE DRIVER

Analog sine and cosine outputs

Ratiometric output voltages

Low thermal and lifetime drift

SAR or Σ-∆ analog-to-digital converter (ADC) drive capable

Magnetoresistive (MR) bridge temperature compensation mode

Temperature range: −40°C to +150°C

EMI resistant

–

EMI

FILTER

VSIN

DRIVER

G = 40

Fault diagnostics

_DDfrom 2.7 V to 5.5 V

AMR BRIDGE

SENSORS

BIAS

OSCILLATOR

FAULT DETECTION

Minimum phase delay

Qualified for automotive applications

Available in an 8-lead SOIC package

EMI

DRIVER

VCOS

G = 40

–

FILTER

APPLICATIONS

Absolute position measurement (linear and angle)

Brushless dc motor control and positioning

Actuator control and positioning

GND

Contactless angular measurement and detection

Magnetic angular position sensing

Figure 1.

GENERAL DESCRIPTION

The ADA4571 is an anisotropic magnetoresistive (AMR) sensor

with integrated signal conditioning amplifiers and ADC drivers.

The ADA4571 produces two analog outputs that indicate the

angular position of the surrounding magnetic field.

COMPANION PRODUCTS

ADCs: AD7265, AD7266, AD7866, AD7902

Microconverter: ADuCM360

Current Sense Amplifier: AD8418A

Voltage Regulator Design Tool: ADIsimPower

The ADA4571 consists of two die within one package, an AMR

sensor, and a fixed gain (G = 40 nominally) instrumentation

amplifier. The ADA4571 delivers clean and amplified cosine

and sine output signals related to the angle of a rotating

magnetic field. The output voltage range is ratiometric to the

supply voltage.

Additional companion products on the ADA4571 product page

PRODUCT HIGHLIGHTS

1. Contactless angular measurement.

2. Measures magnetic field direction rather than field intensity.

3. Minimum sensitivity to air gap variations.

4. Large working distance.

5. Excellent accuracy, even for weak saturation fields.

6. Minimal thermal and lifetime drift.

7. Negligible hysteresis.

The sensor contains two Wheatstone bridges, at a relative angle

of 45° to one another. A rotating magnetic field in the x-y

sensor plane delivers two sinusoidal output signals with the

double frequency of the angle (α) between sensor and magnetic

field direction. Within a homogeneous field in the x-y plane,

the output signals are independent of the physical placement in

the z direction (air gap).

8. Single chip solution.

The ADA4571 is available in an 8-lead SOIC package.

Rev. 0

Document Feedback

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

responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license isgranted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

www.analog.com

Tel: 781.329.4700

Technical Support

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