EEWORLDEEWORLDEEWORLD

Part Number

Search

MAX9925AUB

Description
Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
File Size366KB,24 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Compare View All

MAX9925AUB Overview

Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold

19-4283; Rev 3; 3/11
Variable Reluctance Sensor Interfaces with
Differential Input and Adaptive Peak Threshold
General Description
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.
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.
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.
Features
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
Phase Information
MAX9924–MAX9927
Ordering Information
PART
MAX9924UAUB+
MAX9925AUB+
MAX9926UAEE+
MAX9927AEE+
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
10 µMAX
10 µMAX
16 QSOP
16 QSOP
+Denotes
a lead(Pb)-free/RoHS-compliant package.
Selector Guide
PART
MAX9924UAUB
MAX9925AUB
MAX9926UAEE
MAX9927AEE
AMPLIFIER
1 x Differential
1 x Operational
2 x Differential
2 x Operational
GAIN
1V/V
Externally Set
1V/V
Externally Set
Applications
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
VR SENSOR
DIFFERENTIAL
AMPLIFIER
ADAPTIVE/MINIMUM
AND
ZERO-CROSSING
THRESHOLDS
INTERNAL/EXTERNAL
BIAS VOLTAGE
μC
________________________________________________________________
Maxim Integrated Products
1
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.

MAX9925AUB Related Products

MAX9925AUB MAX9924 MAX9925 MAX9926UAEE MAX9927 MAX9924UAUB MAX9924_11 MAX9926 MAX9927AEE
Description Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
Apply for CYCLONEV development board
GX, PCIE, speed...
guolingho FPGA/CPLD
UFUN Learning Board Simulation 1 (Author's Tips)
[font=微软雅黑][size=4]{:1_86:} Zhang Daxia (@zjd01) has updated again. Do you still remember the last issue [url=https://bbs.eeworld.com.cn/thread-495130-1-1.html]>>Answer the questions and get a free uf...
nmg stm32/stm8
SqlCE PULL is normal and SubmitSql is normal. But an error occurs during PUSH. Please give me some advice.
The program is as follows: string _strRemoteConnect = "provider=sqloledb;data source=192.168.1.99;Initial Catalog=zls;User ID=sa;"; SqlCeRemoteDataAccess _rda = new SqlCeRemoteDataAccess(); _rda.Inter...
fusensam3 Embedded System
ESP8266 GPIO Getting Started
[align=center][size=4]ESP8266 GPIO Introduction[/size][/align] Understanding an MCU cannot start with understanding the clock configuration and GPIO. For the 8266 GPIO, we can find it from the officia...
wateras1 RF/Wirelessly
I need a switch circuit with high output current. Can someone explain the circuit in detail? Thank you.
A switch circuit with high output current is required, the collector input vcc is 6.5v, and the base input of the key is 5.22v. I need an expert to explain the circuit in detail. Q1 is ss8050, and Q2 ...
林发扬 Analog electronics
Measuring temperature
OK~ [[i] This post was last edited by Pinghu Qiuyue on 2013-3-8 13:35[/i]]...
平湖秋月 Microcontroller MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2750  2429  1495  2624  905  56  49  31  53  19 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号