Datasheet > MAX9927

MAX9927

更新时间： 2024-11-15 14:57:15

品牌	Logo	应用领域
亚德诺 - ADI		传感器
页数	文件大小	规格书
23页	1269K
描述
可变磁阻传感器接口，提供差分输入和自适应峰值门限

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MAX9927 数据手册

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MAX9924–MAX9927

Variable Reluctance Sensor Interfaces with

Differential Input and Adaptive Peak Threshold

General Description

Features

The MAX9924–MAX9927 variable reluctance (VR or

magnetic coil) sensor interface devices are ideal for posi-

tion and speed sensing for automotive crankshafts, cam-

shafts, transmission shafts, etc. These devices integrate a

precision amplifier and comparator with selectable adap-

tive peak threshold and zero-crossing circuit blocks that

generate robust output pulses even in the presence of

substantial system noise or extremely weak VR signals.

● Differential Input Stage Provides Enhanced Noise

Immunity

● Precision Amplifier and Comparator Allows

Small-Signal Detection

● User-Enabled Internal Adaptive Peak Threshold or

Flexible External Threshold

● Zero-Crossing Detection Provides Accurate

Phase Information

The MAX9926/MAX9927 are dual versions of the

MAX9924/MAX9925, respectively. The MAX9924/

MAX9926 combine matched resistors with a CMOS input

precision operational amplifier to give high CMRR over a

wide range of input frequencies and temperatures. The

MAX9924/MAX9926 differential amplifiers provide a fixed

gain of 1V/V. The MAX9925/MAX9927 make all three

terminals of the internal operational amplifier available,

allowing greater flexibility for gain. The MAX9926 also

provides a direction output that is useful for quadrature-

connected VR sensors that are used in certain high-

performance engines. These devices interface with both

new-generation differential VR sensors as well as legacy

single-ended VR sensors.

Applications

● Camshaft VRS Interfaces

● Crankshaft VRS Interfaces

● Vehicle Speed VRS Interfaces

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX9924UAUB+

MAX9924UAUB/V+

MAX9925AUB+

MAX9926UAEE+

MAX9926UAEE/V+

MAX9927AEE+

MAX9927AEE/V+

-40°C to +125°C 10 µMAX

-40°C to +125°C 16 QSOP

The MAX9924/MAX9925 are available in the 10-pin

μMAX package, while the MAX9926/MAX9927 are avail-

able in the 16-pin QSOP package. All devices are specified

over the -40°C to +125°C automotive temperature range.

+Denotes a lead(Pb)-free/RoHS-compliant package.

/V denotes an automotive qualified part.

μMAX is a registered trademark of Maxim Integrated Products, Inc.

Simpliﬁed Block Diagram

ENGINE BLOCK

MAX9924

DIFFERENTIAL

AMPLIFIER

VR SENSOR

µC

ADAPTIVE/MINIMUM

AND

ZERO-CROSSING

THRESHOLDS

INTERNAL/EXTERNAL

BIAS VOLTAGE

19-4283; Rev 5; 8/18

12 3 4 5 6 7...23

中文翻译

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与MAX9927相关器件

型号	品牌	获取价格	描述	数据表
MAX9927AEE	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9927AEE/V	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9927AEE/V+	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9927AEE+	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9927AEE+T	MAXIM	获取价格	暂无描述
MAX9928	MAXIM	获取价格	-0.1V to +28V Input Range, Micropower, Uni-/Bidirectional, Current-Sense Amplifiers
MAX9928	ADI	获取价格	-0.1V至+28V输入范围、微功耗、单/双向电流检测放大器
MAX9928_11	MAXIM	获取价格	-0.1V to +28V Input Range, Micropower, Uni-/Bidirectional, Current-Sense Amplifiers
MAX9928_V01	MAXIM	获取价格	-0.1V to 28V Input Range, Micropower, Uni-/Bidirectional, Current-Sense Amplifiers
MAX9928EVKIT	MAXIM	获取价格	Fully Assembled and Tested

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