ZSSC3240

Datasheet

Nov.27.20

Page 3

Contents

1.

Pin Assignments............................................................................................................................................ 6

2.

Pin Descriptions ............................................................................................................................................ 7

3.

Absolute Maximum Ratings.......................................................................................................................... 8

4.

Recommended Operating Conditions ......................................................................................................... 8

5.

Electrical Characteristics.............................................................................................................................. 8

6.

Device Description ...................................................................................................................................... 11

6.1

Signal Flow .......................................................................................................................................... 12

6.2

Analog (Sensor) Front-End.................................................................................................................. 12

6.2.1.

Programmable-Gain Amplifier (PGA).................................................................................... 13

6.2.2.

Analog-to-Digital Converter (ADC)........................................................................................ 15

6.2.3.

Internal Temperature Sensor ................................................................................................ 17

6.2.4.

Supported Supplies for Sensor Elements and Additional, External Temperature Sensing .. 17

6.3

On-Chip Diagnostics............................................................................................................................ 22

6.4

Digital Interfaces .................................................................................................................................. 24

6.4.1.

SPI......................................................................................................................................... 24

6.4.2.

I2C......................................................................................................................................... 27

6.4.3.

One-Wire-Interface, OWI ...................................................................................................... 28

6.5

Measurement and Output Options ...................................................................................................... 32

6.5.1.

Single Measurements, Digital Raw Results, and SSC Results ............................................ 32

6.5.2.

Cyclic, Continuous, Repeated Measurements

– Measurement Scheduler .......................... 34

6.5.3.

Analog Outputs: Digital-to-Analog Converter (DAC)............................................................. 35

6.5.4.

Output Interrupt Signaling ..................................................................................................... 38

6.6

System Setup and Control................................................................................................................... 40

6.6.1.

Digital Commands ................................................................................................................. 40

6.6.2.

Nonvolatile Memory (NVM) ................................................................................................... 43

6.6.3.

Digital Sensor-Signal-Conditioning Mathematics.................................................................. 55

6.7

External, Extra LDO (LDOctrl) for Applications for > 5.5V .................................................................. 58

7.

Calibration .................................................................................................................................................... 59

8.

Package Outline Drawings.......................................................................................................................... 59

9.

Marking Diagram.......................................................................................................................................... 59

10. Ordering Information ................................................................................................................................... 60

11. Glossary........................................................................................................................................................ 60

12. Revision History .......................................................................................................................................... 61