MAX9927AEE+ by Analog Devices

Variable-Reluctance Sensor Interface with Differential Input and Adaptive Peak Threshold


The MAX9924–MAX9927 variable reluctance (VR or magnetic coil) sensor interface devices are ideal for position and speed sensing for automotive crankshafts, camshafts, transmission shafts, etc. These devices integrate 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 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. 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 temperature range.

Where to Buy

Prices starting from US$3.80

Distributor Stock
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Farnell
from US$3.80
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in stock
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Newark Electronics
from US$4.25
23
in stock
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element14
from US$4.10
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Analog Devices
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Features

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

Specifications

Sensor Interface Type Variable Reluctance
# Channels 2
VSUPPLY (V) (min) 4.5
VSUPPLY (V) (max) 5.5
ISUPPLY (µA) (typ) 4700
Low Power Shutdown No
Oper. Temp. (°C) -40 to +125
Package/Pins QSOP/16
BudgetaryPrice (See Notes) 2.76


MAX9927AEE+ Semiconductors - ICs by Analog Devices

VR SENSOR INTERFACE 5.5V QSOP-16

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Interface Type Sensor Interface
Interface Applications Camshaft Crankshaft & Vehicle Speed VRS Interfaces
Supply Voltage Min 4.5V
Supply Voltage Max 5.5V
Interface Case Style QSOP
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Vr Sensor Interface, 5.5V, Qsop-16 | Newark Electronics
VR SENSOR INTERFACE, 5.5V, QSOP-16 | element14
Variable-Reluctance Sensor Int | Analog Devices

Frequently Asked Questions

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Is the MAX9927AEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Newark Electronics, element14, Farnell and Analog Devices have stock available or on a lead time for MAX9927AEE+ .

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