ZSC31010 Datasheet

© 2016 Integrated Device Technology, Inc.

3

January 20, 2016

Contents

List of Figures .............................................................................................................................................................4

List of Tables ..............................................................................................................................................................5

1

Electrical Characteristics .....................................................................................................................................6

1.1.

Absolute Maximum Ratings..........................................................................................................................6

1.2.

Recommended Operating Conditions ..........................................................................................................6

1.3.

Electrical Parameters ...................................................................................................................................7

1.3.1.

Supply/Regulation Characteristics .........................................................................................................7

1.3.2.

Analog Front-End (AFE) Characteristics................................................................................................7

1.3.3.

EEPROM Parameters ............................................................................................................................7

1.3.4.

A/D Converter Characteristics ...............................................................................................................7

1.3.5.

Analog Output (DAC and Buffer) Characteristics ..................................................................................7

1.3.6.

ZACwire™ Serial Interface ....................................................................................................................8

1.3.7.

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

1.4.

Analog Inputs versus Output Resolution ......................................................................................................9

2

Circuit Description .............................................................................................................................................11

2.1.

Signal Flow and Block Diagram..................................................................................................................11

2.2.

Analog Front End........................................................................................................................................12

2.2.1.

Bandgap/PTAT and PTAT Amplifier ....................................................................................................12

2.2.2.

Bridge Supply.......................................................................................................................................12

2.2.3.

PREAMP Block ....................................................................................................................................12

2.2.4.

Analog-to-Digital Converter (ADC).......................................................................................................12

2.3.

Digital Signal Processor .............................................................................................................................13

2.3.1.

EEPROM..............................................................................................................................................14

2.3.2.

One-Wire Interface—ZACwire™..........................................................................................................14

2.4.

Output Stage...............................................................................................................................................15

2.4.1.

Digital to Analog Converter (Output DAC) ...........................................................................................15

2.4.2.

Output Buffer........................................................................................................................................15

2.4.3.

Voltage Reference Block .....................................................................................................................15

2.5.

Clock Generator / Power-On Reset (CLKPOR) .........................................................................................16

2.5.1.

Trimming the Oscillator ........................................................................................................................17

3

Functional Description.......................................................................................................................................18

3.1.

General Working Mode...............................................................................................................................18

3.2.

ZACwire™ Communication Interface .........................................................................................................19

3.2.1.

Properties and Parameters ..................................................................................................................19

3.2.2.

Bit Encoding .........................................................................................................................................20

3.2.3.

Write Operation from Master to ZSC31010 .........................................................................................20

3.2.4.

ZSC31010 Read Operations................................................................................................................21

3.2.5.

High Level Protocol ..............................................................................................................................24