ZSSC3138 Datasheet

© 2016 Integrated Device Technology, Inc.

3

January 25, 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 .............................................................................................................6

1.3.4.

A/D Conversion ................................................................................................................................6

1.3.5.

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

1.3.6.

DAC and Analog Output ..................................................................................................................7

1.3.7.

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

1.4.

Interface Characteristics and EEPROM .................................................................................................9

1.4.1.

I²C

TM Interface ..................................................................................................................................9

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 ................................................................................................................................11

2.3.

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

2.3.1.

Programmable Gain Amplifier (PGA).............................................................................................12

2.3.2.

Offset Compensation .....................................................................................................................12

2.3.3.

Measurement Cycle .......................................................................................................................13

2.3.4.

Analog-to-Digital Converter............................................................................................................14

2.4.

Temperature Measurement ..................................................................................................................16

2.5.

System Control and Conditioning Calculation ......................................................................................16

2.5.1.

General Working Modes ................................................................................................................16

2.5.2.

Startup Phase ...............................................................................................................................17

2.5.3.

Conditioning Calculation ................................................................................................................17

2.6.

Analog or Digital Output .......................................................................................................................18

2.7.

Serial Digital Interface ..........................................................................................................................18

2.8.

Failsafe Features ..................................................................................................................................18

2.9.

High Voltage, Reverse Polarity, and Short Circuit Protection ..............................................................19

3

Application Circuit Examples.......................................................................................................................20

4

Pin Configuration and Package...................................................................................................................21

5

ESD Protection ............................................................................................................................................22

6

Quality and Reliability..................................................................................................................................22

7

Customization..............................................................................................................................................22

8

Ordering Information ...................................................................................................................................22