Datasheet A17700 (Allegro) - 3

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Pressure Sensor Interface and Signal Conditioning IC A17700 with Polynomial Signal Compensation and Advanced Diagnostics Table of Contents
Features and Benefits ... 1 Output Protocols ... 14 Description .. 1 Digital Output Mode Selection .. 18 Package ... 1 Digital Output Driver Fall Time Selection .. 18 Functional Block Diagram ... 1 Broken Wire Detection ... 18 Selection Guide ... 2 Diagnostic Features .. 18 Absolute Maximum Ratings ... 2 Programming: Manchester Communication ... 21 Thermal Characteristics .. 2 Entering Manchester Coding .. 23 Pinout Diagram and Terminal List ... 4 Manchester Interface Message Structure ... 24 Operating Characteristics .. 6 CRC .. 24 Functional Description .. 10 Device Access .. 25 Bandwidth Selection .. 10 Shadow Registers ... 25 Output Response Time .. 10 Device EEPROM and Register Access Lock... 25 Power-On Time... 10 EEPROM Map .. 26 Front End Gain Adjustment ...11 Volatile Registers Map ... 28 Front End Differential Offset Adjustment ...11 Power Derating .. 29 Input Signal Range Calculation ... 12 Package Outline Drawing .. 30 Fine Adjustment and Temperature Compensation ... 12 3 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com Document Outline Features and Benefits Description Package Functional Block Diagram Selection Guide Absolute Maximum Ratings Thermal Characteristics Pinout Diagram and Terminal List Operating Characteristics Functional Description Bandwidth Selection Output Response Time Power-On Time Front End Gain Adjustment Front End Differential Offset Adjustment Input Signal Range Calculation Fine Adjustment and Temperature Compensation Output Protocols Digital Output Mode Selection Digital Output Driver Fall Time Selection Broken Wire Detection Diagnostic Features Programming: Manchester Communication Entering Manchester Coding Manchester Interface Message Structure CRC Device Access Shadow Registers Device EEPROM and Register Access Lock EEPROM Map Volatile Registers Map Power Derating Package Outline Drawing