SCA61T Series

VTI Technologies Oy

Subject to changes

2/18

www.vti.fi

Doc. nr. 8261900

Rev.A

TABLE OF CONTENTS

The SCA61T Inclinometer Series.............................................................................................1

Features................................................................................................................................................1

Applications .........................................................................................................................................1

Table of Contents .....................................................................................................................2

1

Electrical Specifications .....................................................................................................3

1.1

Absolute Maximum Ratings......................................................................................................3

1.2

Performance Characteristics ....................................................................................................3

1.3

Electrical Characteristics ..........................................................................................................4

1.4

SPI Interface DC Characteristics ..............................................................................................4

1.5

SPI Interface AC Characteristics ..............................................................................................4

1.6

SPI Interface Timing Specifications .........................................................................................5

1.7

Electrical Connection ................................................................................................................6

1.8

Typical Performance Characteristics.......................................................................................6

1.9

Additional External Compensation ..........................................................................................7

2

Functional Description .......................................................................................................9

2.1

Measuring Directions ................................................................................................................9

2.2

Voltage to Angle Conversion....................................................................................................9

2.3

Ratiometric Output ....................................................................................................................9

2.4

SPI Serial Interface ..................................................................................................................10

2.5

Digital Output to Angle Conversion .......................................................................................12

2.6

Self Test and Failure Detection Modes ..................................................................................13

2.7

Temperature Measurement .....................................................................................................14

3

Application Information ....................................................................................................15

3.1

Recommended Circuit Diagrams and Printed Circuit Board Layouts ................................15

3.2

Recommended Printed Circuit Board Footprint ...................................................................16

4

Mechanical Specifications and Reflow Soldering ..........................................................16

4.1

Mechanical Specifications (Reference only) .........................................................................16

4.2

Reflow Soldering......................................................................................................................17

5

Document Change Control...............................................................................................18

6

Contact Information ..........................................................................................................18