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ZSC31150GEC Datasheet(PDF) 4 Page - List of Unclassifed Manufacturers |
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4 / 26 page ZSC31150 Fast Automotive Sensor Signal Conditioner Data Sheet December 15, 2012 © 2012 Zentrum Mikroelektronik Dresden AG — Rev. 2.00 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. 4 of 25 Contents 1 Electrical Characteristics .............................................................................................................................. 6 1.1. Absolute Maximum Ratings................................................................................................................... 6 1.2. Operating Conditions ............................................................................................................................. 6 1.3. Electrical Parameters ............................................................................................................................ 7 1.3.1. Supply Current and System Operation Conditions ......................................................................... 7 1.3.2. Analog Front-End (AFE) Characteristics ........................................................................................ 7 1.3.3. Temperature Measurement ............................................................................................................ 7 1.3.4. A-D Conversion............................................................................................................................... 7 1.3.5. Sensor Connection Check .............................................................................................................. 8 1.3.6. DAC & Analog Output (AOUT Pin) ................................................................................................ 8 1.3.7. System Response ........................................................................................................................... 8 1.4. Interface Characteristics & 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)............................................................................................ 11 2.3.2. Offset Compensation .................................................................................................................... 12 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 6 Quality and Reliability ................................................................................................................................. 21 7 Customization............................................................................................................................................. 21 8 Ordering Information .................................................................................................................................. 22 9 Additional Documents ................................................................................................................................ 23 10 Glossary ..................................................................................................................................................... 23 11 Document Revision History ........................................................................................................................ 25 |
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