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MAX9927AEE/V+

Description
Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
CategoryAnalog mixed-signal IC    The signal circuit   
File Size366KB,23 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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MAX9927AEE/V+ Overview

Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold

MAX9927AEE/V+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSSOP
package instructionSSOP,
Contacts16
Reach Compliance Codecompli
ECCN codeEAR99
Factory Lead Time19 weeks
Samacsys DescriptiSensor Interface Variable-Reluctance Sensor Interface with Differential Input and Adaptive Peak Threshold
Analog Integrated Circuits - Other TypesANALOG CIRCUIT
JESD-30 codeR-PDSO-G16
length4.89 mm
Humidity sensitivity level1
Number of functions2
Number of terminals16
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Maximum seat height1.75 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)4.5 V
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyBICMOS
Temperature levelAUTOMOTIVE
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.9 mm
19-4283; Rev 4; 3/12
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
MAX9924
UAUB+
MAX9924 UAUB/V+
MAX9925
AUB+
MAX9926
UAEE+
MAX9926 UAEE/V+
MAX9927
AEE+
MAX9927 AEE/V+
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-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
10 µMAX
16 QSOP
16 QSOP
16 QSOP
16 QSOP
+Denotes
a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
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.

MAX9927AEE/V+ Related Products

MAX9927AEE/V+ MAX9924_12 MAX9924UAUB/V+ MAX9926UAEE/V+
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
Is it lead-free? Lead free - Lead free Lead free
Is it Rohs certified? conform to - conform to conform to
Maker Maxim - Maxim Maxim
Parts packaging code SSOP - TSSOP SSOP
package instruction SSOP, - TSSOP, SSOP,
Contacts 16 - 10 16
Reach Compliance Code compli - compli compli
ECCN code EAR99 - EAR99 EAR99
Factory Lead Time 19 weeks - 6 weeks 6 weeks
Samacsys Descripti Sensor Interface Variable-Reluctance Sensor Interface with Differential Input and Adaptive Peak Threshold - Sensor Interface Variable-Reluctance Sensor Interface with Differential Input and Adaptive Peak Threshold Sensor Interface Variable-Reluctance Sensor Interface
Analog Integrated Circuits - Other Types ANALOG CIRCUIT - ANALOG CIRCUIT ANALOG CIRCUIT
JESD-30 code R-PDSO-G16 - S-PDSO-G10 R-PDSO-G16
length 4.89 mm - 3 mm 4.89 mm
Humidity sensitivity level 1 - 1 1
Number of functions 2 - 1 2
Number of terminals 16 - 10 16
Maximum operating temperature 125 °C - 125 °C 125 °C
Minimum operating temperature -40 °C - -40 °C -40 °C
Package body material PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SSOP - TSSOP SSOP
Package shape RECTANGULAR - SQUARE RECTANGULAR
Package form SMALL OUTLINE, SHRINK PITCH - SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius) NOT SPECIFIED - 260 NOT SPECIFIED
Maximum seat height 1.75 mm - 1.1 mm 1.75 mm
Maximum supply voltage (Vsup) 5.5 V - 5.5 V 5.5 V
Minimum supply voltage (Vsup) 4.5 V - 4.5 V 4.5 V
Nominal supply voltage (Vsup) 5 V - 5 V 5 V
surface mount YES - YES YES
technology BICMOS - BICMOS BICMOS
Temperature level AUTOMOTIVE - AUTOMOTIVE AUTOMOTIVE
Terminal form GULL WING - GULL WING GULL WING
Terminal pitch 0.635 mm - 0.5 mm 0.635 mm
Terminal location DUAL - DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED - NOT SPECIFIED NOT SPECIFIED
width 3.9 mm - 3 mm 3.9 mm
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