RAA730301

R02DS0012EJ0110

Rev.1.10

Page 3 of 43

May. 31, 2014

Contents

1. Pin Configuration............................................................................................................................... 4

1.1 Pin Layout................................................................................................................................................................. 4

1.2 Block Diagram .......................................................................................................................................................... 5

1.3 Pin Functions ............................................................................................................................................................ 6

1.4 Connection of Unused Pins....................................................................................................................................... 8

1.5 Pin I/O Circuits ......................................................................................................................................................... 9

2. Instrumentation Amplifier ............................................................................................................... 11

2.1 Overview of Instrumentation Amplifier Features ................................................................................................... 11

2.2 Block Diagram ........................................................................................................................................................ 11

2.3 Registers Controlling the Instrumentation Amplifier.............................................................................................. 12

2.4 Procedure for Operating the Instrumentation Amplifier ......................................................................................... 14

3. D/A Converter.................................................................................................................................. 15

3.1 Overview of D/A Converter Features ..................................................................................................................... 15

3.2 Block Diagram ........................................................................................................................................................ 15

3.3 Registers Controlling the D/A Converter................................................................................................................ 16

3.4 Procedure for Operating the D/A Converter ........................................................................................................... 18

3.5 Notes on Using the D/A Converter ......................................................................................................................... 19

4. Temperature Sensor ......................................................................................................................... 20

4.1 Overview of Temperature Sensor Features ............................................................................................................. 20

4.2 Block Diagram ........................................................................................................................................................ 20

4.3 Registers Controlling the Temperature Sensor ....................................................................................................... 21

4.4 Procedure for Operating the Temperature Sensor ................................................................................................... 22

5. Variable Output Voltage Regulator ................................................................................................. 23

5.1 Overview of Variable Output Voltage Regulator Features ..................................................................................... 23

5.2 Block Diagram ........................................................................................................................................................ 23

5.3 Registers Controlling the Variable Output Voltage Regulator................................................................................ 24

5.4 Procedure for Operating the Variable Output Voltage Regulator ........................................................................... 26

6.

SPI............................................................................................................................................. 27

6.1 Overview of SPI Features ....................................................................................................................................... 27

6.2 SPI Communication ................................................................................................................................................ 28

7.

Reset.......................................................................................................................................... 29

7.1 Overview of Reset Feature...................................................................................................................................... 29

7.2 Registers Controlling the Reset Feature.................................................................................................................. 31

8. Electrical Specifications................................................................................................................... 32

8.1 Absolute Maximum Ratings ................................................................................................................................... 32

8.2 Operating Condition................................................................................................................................................ 33

8.3 Supply Current Characteristics ............................................................................................................................... 33

8.4 Electrical Specifications of Each Block .................................................................................................................. 34

9. Package Drawing ............................................................................................................................. 39