ZSSC3036

Low-Power 16-Bit Sensor Signal Conditioner IC

Data Sheet

May 28, 2013

© 2013 Zentrum Mikroelektronik Dresden AG

— Rev. 1.20

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without

the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.

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Table of Contents

1

IC Characteristics ..........................................................................................................................................7

1.1.

Absolute Maximum Ratings....................................................................................................................7

1.2.

Operating Conditions ..............................................................................................................................7

1.3.

Electrical Parameters .............................................................................................................................8

1.4.

Power Supply Rejection Ratio (RSRR) vs. Frequency.........................................................................10

2

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

2.1.

Brief Description ...................................................................................................................................11

2.2.

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

2.3.

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

2.3.1.

Amplifier .........................................................................................................................................12

2.3.2.

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

2.3.3.

Temperature Measurement ...........................................................................................................18

2.3.4.

Bridge Supply.................................................................................................................................18

2.4.

Digital Section.......................................................................................................................................18

2.4.1.

Digital Signal Processor (DSP) Core .............................................................................................18

2.4.2.

MTP Memory..................................................................................................................................18

2.4.3.

Clock Generator .............................................................................................................................19

2.4.4.

Power Supervision .........................................................................................................................19

2.4.5.

Interface .........................................................................................................................................19

3

Functional Description .................................................................................................................................20

3.1.

Power Up ..............................................................................................................................................20

3.2.

Measurements ......................................................................................................................................20

3.3.

Operational Modes ...............................................................................................................................21

3.4.

Command Interpretation.......................................................................................................................23

3.4.1.

SPI/I

2C™ Commands ....................................................................................................................23

3.5.

Communication Interface......................................................................................................................26

3.5.1.

Common Functionality ...................................................................................................................26

3.5.2.

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

3.5.3.

I

2C™...............................................................................................................................................30

3.6.

Memory.................................................................................................................................................31

3.6.1.

Programming Memory ...................................................................................................................31

3.6.2.

Memory Status Commands ...........................................................................................................32

3.6.3.

Memory Contents...........................................................................................................................33