Datasheet > MAX9924_09

MAX9924_09

更新时间： 2024-11-14 11:14:07

品牌	Logo	应用领域
美信 - MAXIM		传感器
页数	文件大小	规格书
23页	304K
描述
Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold

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MAX9924_09 数据手册

19-4283; Rev 2; 3/09

Variable Reluctance Sensor Interfaces with

Differential Input and Adaptive Peak Threshold

4–MAX927

General Description

Features

The MAX9924–MAX9927 variable reluctance (VR or mag-

netic coil) sensor interface devices are ideal for position

and speed sensing for automotive crankshafts,

camshafts, transmission shafts, etc. These devices inte-

grate a precision amplifier and comparator with selectable

adaptive 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.

o Differential Input Stage Provides Enhanced Noise

Immunity

o Precision Amplifier and Comparator Allows

Small-Signal Detection

o User-Enabled Internal Adaptive Peak Threshold or

Flexible External Threshold

o Zero-Crossing Detection Provides Accurate

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 ter-

minals 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-per-

formance engines. These devices interface with both

new-generation differential VR sensors as well as legacy

single-ended VR sensors.

Phase Information

Ordering Information

PART

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

10 µMAX

MAX9924UAUB+

MAX9925AUB+

MAX9926UAEE+

MAX9927AEE+

10 µMAX

16 QSOP

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

Selector Guide

The MAX9924/MAX9925 are available in the 10-pin

µMAX^®package, while the MAX9926/MAX9927 are

available in the 16-pin QSOP package. All devices are

specified over the -40°C to +125°C automotive temper-

ature range.

PART

AMPLIFIER

1 x Differential

1 x Operational

2 x Differential

2 x Operational

GAIN

1V/V

MAX9924UAUB

MAX9925AUB

MAX9926UAEE

MAX9927AEE

Externally Set

1V/V

Applications

Externally Set

Camshaft VRS Interfaces

Crankshaft VRS Interfaces

Vehicle Speed VRS Interfaces

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

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...23

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与MAX9924_09相关器件

型号	品牌	获取价格	描述	数据表
MAX9924_11	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9924_12	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9924_V01	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9924U	MAXIM	获取价格	On-Board 5Hz/24kHz Triangle-Wave Generator
MAX9924UAUB	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9924UAUB/V	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9924UAUB/V+	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9924UAUB+	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9924UEVKIT	MAXIM	获取价格	On-Board 5Hz/24kHz Triangle-Wave Generator
MAX9924UEVKIT+	MAXIM	获取价格	On-Board 5Hz/24kHz Triangle-Wave Generator

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