ZSC31150 Datasheet

© 2016 Integrated Device Technology, Inc.

3

December 6, 2016

Contents

1.

Electrical Characteristics ..............................................................................................................................................................................5

1.1 Absolute Maximum Ratings.................................................................................................................................................................5

1.2 Operating Conditions...........................................................................................................................................................................5

1.3 Electrical Parameters ..........................................................................................................................................................................6

1.3.1

Supply Current and System Operation Conditions...............................................................................................................6

1.3.2

Analog Front-End (AFE) Characteristics ..............................................................................................................................6

1.3.3

Temperature Measurement [b]...............................................................................................................................................6

1.3.4

Analog-to-Digital Conversion (ADC).....................................................................................................................................7

1.3.5

Sensor Connection Check....................................................................................................................................................7

1.3.6

Digital-to-Analog Conversion (DAC) and Analog Output (AOUT Pin) ..................................................................................7

1.3.7

System Response ................................................................................................................................................................8

1.4 Interface Characteristics and EEPROM ..............................................................................................................................................8

1.4.1

I2C Interface [a] ......................................................................................................................................................................8

1.4.2

ZACwire™ One Wire Interface (OWI) ..................................................................................................................................9

1.4.3

EEPROM..............................................................................................................................................................................9

2.

Circuit Description ......................................................................................................................................................................................10

2.1 Signal Flow........................................................................................................................................................................................10

2.2 Application Modes .............................................................................................................................................................................10

2.3 Analog Front End (AFE) ....................................................................................................................................................................11

2.3.1

Programmable Gain Amplifier (PGA) .................................................................................................................................11

2.3.2

Offset Compensation..........................................................................................................................................................11

2.3.3

Measurement Cycle............................................................................................................................................................12

2.3.4

Analog-to-Digital Converter ................................................................................................................................................13

2.4 Temperature Measurement ...............................................................................................................................................................15

2.5 System Control and Conditioning Calculation ...................................................................................................................................15

2.5.1

Operation Modes................................................................................................................................................................15

2.5.2

Start Up Phase ...................................................................................................................................................................15

2.5.3

Conditioning Calculation.....................................................................................................................................................16

2.6 Analog Output AOUT.........................................................................................................................................................................16

2.7 Serial Digital Interface .......................................................................................................................................................................16

2.8 Failsafe Features, Watchdog and Error Detection.............................................................................................................................17

2.9 High Voltage, Reverse Polarity, and Short Circuit Protection............................................................................................................17

3.

Application Circuit Examples ......................................................................................................................................................................18

4.

Pin Configuration, Latch-Up and ESD Protection.......................................................................................................................................20

4.1 Pin Configuration and Latch-up Conditions .......................................................................................................................................20

4.2 ESD Protection..................................................................................................................................................................................20

5.

Package......................................................................................................................................................................................................21

5.1 SSOP14 Package..............................................................................................................................................................................21

5.2 14-DFNPackage................................................................................................................................................................................21